Integrated equipment for low-carbon regeneration of sludge and auxiliary cementitious materials

Abstract

The present invention discloses an integrated equipment for low-carbon regeneration of sludge auxiliary cementitious materials, which includes a base, a processing system, an operating system and a control system. Compared with the prior art, the integrated equipment prepared by the present invention realizes drying, carbonization, thermal modification and cooling in one, and compared with the combined use of separate drying, carbonization, thermal modification and cooling equipment, the number of equipment sets is greatly reduced, the heat utilization efficiency is greatly improved, the calorific value of the sludge itself is fully utilized, and the operating cost is reduced.

Description

Technical Field

[0001] The invention relates to the field of urban solid waste resource utilization, and in particular to an integrated equipment for low-carbon regeneration of sludge and auxiliary cementitious materials. Background Art

[0002] With the rapid development of urbanization in my country, the output of sludge has increased year by year. Along with the increase in sludge output, there are also a large number of pipe network sludge, black and smelly sludge from rivers and lakes, and industrial sludge of general solid waste. my country's sludge has the characteristics of low organic matter content, high sand content, large output, and contains some pollutants. It has the dual attributes of "resource" and "pollution". For a long time, "water is more important than sludge". Sludge treatment has become one of the difficult problems in environmental governance and has become an important factor restricting the sustainable development of cities. In response to sludge treatment, the country has successively introduced relevant policies to encourage the use of diversified combinations such as anaerobic digestion, aerobic fermentation, drying and incineration, land utilization, and building materials utilization to treat sludge. It proposes to strengthen technical support, focus on breakthroughs in common and key technical equipment such as sludge stabilization and harmless treatment, resource utilization, and coordinated disposal, and carry out innovative technology applications for sludge treatment and resource utilization. Sludge regeneration auxiliary cementitious materials can be used as raw materials for building materials such as cement, concrete, and bricks, and have a wide range of applications. At the same time, sludge disposal facilities are generally built near sewage treatment plants, landfills, or industrial parks in urban planning. The products can be consumed locally in the city. The consumption market is huge, which can completely solve the terminal destination and consumption problems.

[0003] Municipal sludge regeneration auxiliary cementitious materials involve important technical links such as drying, carbonization, temperature-controlled thermal modification, etc. At present, there are relevant technologies and equipment for a single link, and series implementation has been implemented, but integrated equipment is lacking. Equipment series connection has problems such as a large number of equipment sets, complex connection and coordination, high construction cost, low thermal efficiency, complex tail gas treatment and high operating cost. At present, most drying is thermal drying, which has high energy consumption and high equipment cost; carbonization equipment requires external heat input, high energy consumption, carbonized slag is often used as greening material, the disposal path is limited, and the front end is generally connected to the drying process, with high construction and operation costs; thermal modification equipment is directly based on combustion-based incineration equipment, and mostly adopts furnace types used in the metallurgical industry and waste incineration industry, which is not very targeted, does not focus on temperature control, the material is not active or the activity is insufficient, the disposal path is limited, and the construction and operation costs are high.

[0004] Therefore, how to provide a sludge low-carbon regeneration auxiliary cementitious material equipment so that it can achieve the technical effect of strong integrity and low energy consumption is a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] In view of the problems existing in the prior art, the technical problem to be solved by the present invention is to provide a sludge low-carbon regeneration auxiliary cementitious material equipment with strong integrity and low energy consumption.

[0006] To achieve the above-mentioned purpose, the present invention provides an integrated equipment for low-carbon regeneration of sludge auxiliary cementitious materials, the integrated equipment comprising: a base; a processing system, the processing system comprising a refractory inner cylinder, a spiral pipe and a rotating central axis, the refractory inner cylinder is arranged on the base; the rotating central axis is arranged at the center position of the refractory inner cylinder and passes through the refractory inner cylinder, the rotating central axis is a hollow structure, and a plurality of intermediate unloading partitions and a plurality of peripheral unloading partitions are alternately arranged at intervals along the vertical direction of the refractory inner cylinder; the outer periphery of each intermediate unloading partition is connected to the refractory inner cylinder, and a first unloading port is formed between the inner periphery of each intermediate unloading partition and the rotating central axis; the outer periphery of each peripheral unloading partition is connected to the refractory inner cylinder, and a second unloading port is arranged at the edge of each peripheral unloading partition; the inner periphery of each peripheral unloading partition rotates with the rotating central axis Rotation connection; wherein a first sealer is provided at the connection between the rotating central axis and the refractory inner tube; the intermediate unloading partition is provided at the upper end of the refractory inner tube and the lower end of the refractory inner tube; a plurality of alternating intermediate unloading partitions and the peripheral unloading partitions form a drying layer, a carbonization layer, a heat modification layer and a cooling layer, and the drying layer, the carbonization layer, the heat modification layer and the cooling layer are arranged in sequence from top to bottom along the vertical direction of the refractory inner tube; a spiral pipe channel opening is provided at the periphery of each intermediate unloading partition in the heat modification layer and at the periphery of each peripheral unloading partition, so as to facilitate the arrangement of a spiral pipe on the heat modification layer; the spiral pipe passes through the spiral pipe channel opening and is spirally arranged on the refractory inner tube; the spiral pipe channel openings at the periphery of the intermediate unloading partition and the periphery of the peripheral unloading partition are provided with sealing devices that fit with the spiral pipe.

[0007] In the first aspect, the integrated equipment also includes an operating system and a control system, and the operating system includes: a waste heat utilization device, which includes a waste heat utilization device body, a first waste heat gas path and a second waste heat gas path; a water supply device, which is connected to the waste heat utilization device body of the waste heat utilization device through a water supply pipe; a circulating hot water storage device, which is connected to the waste heat utilization device body of the waste heat utilization device through a circulating water pipe; a condensed water storage device, which is connected to one end of the first waste heat gas path of the waste heat utilization device through a condensed water pipe; wherein a liquid temperature sensor, a liquid flow meter and a pH sensor are provided on the condensed water pipe; the waste heat utilization device, the water supply device, the circulating hot water storage device, the liquid temperature sensor, the liquid flow meter and the pH sensor are respectively connected to the control system.

[0008] In the first aspect, the operating system further includes: a heat exchanger, the heat exchanger including a first heat exchange gas path and a second heat exchange gas path; two first heat exchange pipes, one end of one of the first heat exchange pipes is connected to one end of the first waste heat gas path, and the other end of one of the first heat exchange pipes is connected to one end of the first heat exchange gas path; one end of another first heat exchange pipe is connected to the other end of the first waste heat gas path, and the other end of another first heat exchange pipe is connected to the upper end of the drying layer; wherein a first oxygen detector is arranged on one of the first heat exchange pipes, and a first gas temperature sensor is arranged on the side of the first oxygen detector away from the waste heat utilization device; a plurality of second heat exchange pipes, one end of each of the second heat exchange pipes is connected to the other end of the first heat exchange gas path, and the other end of each of the second heat exchange pipes is connected to the drying layer; a heat exchange fan is arranged at the connection end of each of the second heat exchange pipes with the first heat exchange gas path, and a second gas temperature sensor is arranged on the side of the heat exchange fan away from the heat exchanger; wherein the heat exchanger, the first oxygen detector, the first gas temperature sensor, the heat exchange fan and the second gas temperature sensor are respectively connected to the control system.

[0009] In the first aspect, the operating system also includes: a flue gas processor; a first flue gas circulation pipe, one end of the first flue gas circulation pipe is connected to the flue gas processor, and the other end of the first flue gas circulation pipe is connected to one end of the first heat exchange gas path; a gas flow control valve is provided between the first flue gas circulation pipe and the first heat exchange gas path; two second flue gas circulation pipes, one end of the second flue gas circulation pipe is connected to the flue gas processor, and the other end of the second flue gas circulation pipe is connected to one end of the second waste heat gas path; one end of the other second flue gas circulation pipe is connected to the waste heat second gas path The other end of the second heat air path is connected, and the other end of another second flue gas circulation duct is connected to one end of the second heat exchange air path; a smoke exhaust fan is arranged between the second flue gas circulation duct and the flue gas processor; a smoke exhaust chimney is arranged on the smoke gas processor and connected with the smoke gas processor, and a third gas temperature sensor and a gas composition detector are arranged between the smoke exhaust chimney and the smoke gas processor from bottom to top; wherein, the smoke processor, the gas flow control valve, the smoke exhaust fan, the third gas temperature sensor and the gas composition detector are respectively connected to the control system.

[0010] In the first aspect, the operating system also includes: a gas combustion device; three first flue gas return ducts, one end of the first first flue gas return duct is connected to one end of the gas combustion device, and the other end of the first first flue gas return duct is connected to the upper end of the heat modification layer; one end of the second first flue gas return duct is connected to the other end of the gas combustion device, and the other end of the second first flue gas return duct is connected to the lower end of the spiral duct; one end of the third first flue gas return duct is connected to the upper end of the spiral duct, and the other end of the third first flue gas return duct is connected to the other end of the second heat exchange gas path; wherein, a second oxygen detector is provided on the first first flue gas return duct, and a fourth gas temperature sensor is provided on the side of the second oxygen detector away from the gas combustion device; the gas combustion device, the second oxygen detector and the fourth gas temperature sensor are respectively connected to the control system.

[0011] In the first aspect, the operating system also includes: a fuel supplier; a plurality of fuel supply pipelines, one end of each of the fuel supply pipelines is connected to each layer of the heat-modified layer, the other end of each of the fuel supply pipelines is connected to the fuel supplier, and each of the fuel supply pipelines is provided with a burner; wherein the fuel supplier and the burner are respectively connected to the control system.

[0012] In the first aspect, the operating system also includes: a first return fan; two second smoke return ducts, one end of which is connected to the first return fan, and the other end of which is connected to the upper end of the carbonization layer; one end of another second smoke return duct is connected to the first return fan, and the other end of another second smoke return duct is connected to the lower end of the thermal modification layer, and a third oxygen detector is provided on one of the second smoke return ducts, and a fifth gas temperature sensor is provided on the side of the third oxygen detector away from the first return fan; a second return fan; two third smoke return ducts, one end of which is connected to the cooling layer, and the other end of which is connected to the second return fan; one end of another third smoke return duct is connected to the second return fan, and the other end of the other third smoke return duct is connected to The upper end of the rotating central shaft is connected to form a communication channel between the third flue gas return duct and the rotating central shaft; an air filter, one end of the air filter is connected to the lower end of the cooling layer through an air supply duct, an air intake fan is arranged between the air filter and the lower end of the cooling layer, and the other end of the air filter is connected to the lower end of the rotating central shaft through an air supply duct to form a communication channel between the air supply duct and the rotating central shaft; a drive motor, the drive motor is connected to the rotating central shaft to drive the rotating central shaft to rotate; wherein, the upper end of the rotating central shaft is provided with a central shaft upper end fixing cap, the lower end of the rotating central shaft is provided with a central shaft lower end fixing cap, and the central shaft lower end fixing cap is arranged on the base; the first return fan, the third oxygen detector, the fifth gas temperature sensor, the second return fan, the air filter, and the drive motor are respectively connected to the control system.

[0013] In the first aspect, the processing system also includes: a plurality of groups of stirring arms, one end of each group of stirring arms is arranged on the rotating neutral axis through a quick-release bayonet, and the other end of each group of stirring arms is correspondingly provided with a group of pulleys; a group of stirring arms is arranged above each of the intermediate unloading partitions and above each of the peripheral unloading partitions, and each group of stirring arms is provided with stirring rake teeth; a plurality of guide grooves, the guide grooves are arranged on the refractory inner cylinder through connecting rods, and each of the guide grooves has a group of pulleys similar to it; a protective support outer cylinder, the protective support outer cylinder is arranged on the base and distributed on the periphery of the refractory inner cylinder to envelop the refractory inner cylinder; a plurality of groups of inspection windows, each group of inspection windows includes a plurality of inspection windows, and each of the inspection windows in any group is arranged on the protective support outer cylinder and connected to the refractory inner cylinder; each group of inspection windows is arranged corresponding to each group of stirring arms; a plurality of groups of kiln cameras, each A group of kiln cameras includes several kiln cameras, and the fixed end of each kiln camera in any group is arranged on the protective support outer cylinder, and the camera end of each kiln camera in several groups is arranged on the refractory inner cylinder to monitor the material situation in the refractory inner cylinder; a support frame, the support frame is arranged on the base and distributed on the periphery of the support frame to surround the protective support outer cylinder; a frame crossbeam is arranged at the upper end of each group of support frames; the fixing cap at the upper end of the central axis is arranged on the frame crossbeam; each group of support frames is arranged on the base; several groups of operating platforms, each group of operating platforms includes several operating platforms, and the two ends of each operating platform in any group are respectively arranged on the support frame and the protective support outer cylinder at the corresponding positions of the drying layer, the carbonization layer, the heat modification layer and the cooling layer; wherein, the kiln camera is connected to the control system.

[0014] In the first aspect, the processing system also includes: a crushing device; a screw feeder, one end of the screw feeder is connected to the crushing device, and the other end of the screw feeder passes through the protective support outer cylinder and the refractory inner cylinder in sequence to enter the upper end of the drying layer, so that the material enters the drying layer through the screw feeder; a sealed discharger is provided at the end of the other end of the screw feeder; wherein the crushing device and the screw feeder are respectively connected to the control system.

[0015] In the first aspect, the processing system also includes: a sealed discharger, which is arranged at the second discharge port where the drying layer enters the carbonization layer; a material storage device, which is connected to the first discharge port at the lower end of the cooling layer through a discharge pipe; a material temperature sensor, which is arranged inside the material storage device; a first air pressure temperature sensor, which is arranged inside the drying layer; a second air pressure temperature sensor, which is arranged inside the carbonization layer; a third air pressure temperature sensor, which is arranged inside the thermal modification layer; wherein the peripheral discharge partition between the drying layer and the carbonization layer is connected to the rotating neutral axis rotary dynamic seal; the material temperature sensor, the first air pressure temperature sensor, the second air pressure temperature sensor and the third air pressure temperature sensor are connected to the control system.

[0016] Beneficial effects:

[0017] The integrated equipment for auxiliary cementitious materials for low-carbon regeneration of sludge of the present invention has a processing system in which a plurality of intermediate unloading partitions and a plurality of peripheral unloading partitions are alternately arranged from top to bottom in the vertical direction of a refractory inner cylinder. At the same time, the peripheries of the intermediate unloading partitions and the peripheral unloading partitions are connected to the refractory inner cylinder, a rotating central axis is arranged at the center position of the refractory inner cylinder, the rotating central axis passes through the refractory inner cylinder, and a first sealer is arranged at the connection between the top of the refractory inner cylinder and the rotating central axis. The centers of the intermediate unloading partitions and the peripheral unloading partitions both pass through the rotating central axis, and a certain distance is between the intermediate unloading partition and the rotating central axis to form a circular ring with the rotating central axis as the center, which is the unloading port of the intermediate unloading partition; a plurality of semicircular openings with the rotating central axis as the axis of symmetry are arranged on the periphery of the peripheral unloading partition, which are the unloading ports of the peripheral unloading partition.

[0018] When the integrated equipment is used for material preparation, the sludge located in the middle unloading partition will fall from the discharge port of the middle unloading partition into the peripheral unloading partition, and then fall from the discharge port of the peripheral unloading partition into the middle unloading partition, and then fall from the discharge port of the middle unloading partition into the peripheral unloading partition, and the cycle continues; in the integrated equipment of the present invention, a plurality of alternating middle unloading partitions and peripheral unloading partitions constitute a drying layer, a carbonization layer, a heat modification layer and a cooling layer, and the number of layers of the middle unloading partitions and the peripheral unloading partitions in the drying layer, the carbonization layer, the heat modification layer and the cooling layer can be determined according to actual needs. It is to be determined that the main function of the drying layer is to dry the sludge, the main function of the carbonization layer is to carbonize the dried sludge, the main function of the heat modification layer is to heat modify the carbonized sludge to obtain materials, and the main function of the cooling layer is to cool the heat modified materials for easy collection. The integrated equipment of the present invention realizes drying, carbonization, heat modification and cooling in one. Compared with the combined use of separate drying, carbonization, heat modification and cooling equipment, the number of equipment sets is greatly reduced, the heat utilization efficiency is greatly improved, the calorific value of the sludge itself is fully utilized, and the operating cost is reduced.

[0019] At the same time, the peripheral unloading partition is rotatably connected to the rotating center axis, and the peripheral unloading partition and the intermediate unloading partition do not affect the rotation of the rotating center axis; in the heat modification layer, a spiral pipe is arranged spirally in the refractory inner tube of the heat modification layer, and the spiral pipe is connected to the operating system, which prolongs the residence time of the flue gas passing through the spiral pipe in the heat modification layer, so that the pollutants in the flue gas in the spiral pipe are fully decomposed, and the pollutants in the discharged flue gas are reduced. A spiral pipe passage opening is arranged on each intermediate unloading partition and each peripheral unloading partition of the heat modification layer, and the spiral pipe passage opening opened allows the spiral pipe to spiral through the intermediate unloading partition and the peripheral unloading partition, and at the same time, a sealing device that fits the spiral pipe is arranged at the spiral pipe passage opening to prevent the material from leaking into the cooling layer from the gap between the spiral pipe and the spiral pipe passage opening, resulting in incomplete thermal modification of some materials.

[0020] In addition, the outside of the refractory inner tube, the middle discharge interlayer and the peripheral discharge interlayer are all covered with refractory materials to avoid the refractory inner tube, the middle discharge interlayer and the peripheral discharge interlayer from being damaged by high temperature when the integrated equipment is working. The integrated equipment of the present invention is controlled by a control system, which monitors and analyzes data in a timely manner and makes adjustments in real time to ensure that the system parameters are within the set range, and solves related problems at the first time, so that the equipment is in a good operating state. During the operation of the system, the various devices of the treatment and disposal system can be regularly checked, and the equipment that does not meet the equipment requirements and has existing safety hazards can be replaced in time, which greatly guarantees the safe operation of the equipment and greatly improves the efficiency of the equipment. After the system is shut down, it must be cleaned and maintained in time to ensure the smooth operation and service life of the treatment and disposal system next time. At the same time, the integrated equipment can control the total air intake under the condition of sufficient sludge calorific value and the quality of the heat-modified material, thereby controlling the carbon content of the material, which can play a role in carbon fixation. The formed heat-modified material can replace part of the cement dosage as an auxiliary cementitious material, which plays a role in reducing carbon emissions. It can also be used as a raw material for building materials such as concrete, bricks, and mortar for external supply, which greatly expands the efficiency channel and ensures the final consumption. At the same time, according to the calorific value of the sludge, it can coordinately treat municipal pipe sludge, black and smelly river sludge and some abandoned engineering mud, and contribute to the construction of waste-free cities. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is an overall schematic diagram of an integrated equipment for low-carbon regeneration of sludge auxiliary cementitious materials of the present invention;

[0023] Figure 2 It is a schematic diagram of a treatment system of an integrated equipment for low-carbon regeneration of sludge auxiliary cementitious materials according to the present invention;

[0024] Figure 3 It is a schematic diagram of an operating system of an integrated equipment for low-carbon regeneration of sludge auxiliary cementitious materials according to the present invention;

[0025] Figure 4 It is a side view of the spiral pipe connection of the heat-modified layer of the integrated equipment of the sludge low-carbon regeneration auxiliary gelling material of the present invention;

[0026] Figure 5 It is a top view of a stirring arm of an integrated equipment for low-carbon regeneration auxiliary cementitious materials of sludge according to the present invention in a refractory inner cylinder;

[0027] Figure 6 It is a top view of the peripheral unloading partition of the integrated equipment of the sludge low-carbon regeneration auxiliary cementitious material of the present invention in the refractory inner cylinder;

[0028] Figure 7 It is a top view of the intermediate unloading partition of the integrated equipment for low-carbon regeneration of sludge auxiliary cementitious materials of the present invention in the refractory inner cylinder;

[0029] Figure 8 It is a schematic diagram of a guide groove and a pulley of an integrated equipment for low-carbon regeneration of sludge auxiliary cementitious materials according to the present invention. Description of the drawings:

[0031] S1, drying layer; S2, carbonization layer; S3, thermal modification layer; S4, cooling layer;

[0032] 1. Base;

[0033] 2. Processing system; 201. Refractory inner tube; 202. Coiled pipe; 203. Rotating central axis; 204. Intermediate discharge compartment; 205. Peripheral discharge compartment; 206. First discharge port; 207. Second discharge port; 208. First sealer; 209. Coiled pipe passageway; 210. Stirring arm; 211. Quick bayonet; 212. Guide groove; 213. Protective support outer tube; 214. Inspection window; 215. Kiln camera; 216. Support frame; 217. Frame crossbeam; 218. Operating platform; 219. Crushing device; 220. Screw feeder; 221. Sealed discharger; 222. Sealed discharger; 223. Material storage device; 224. Discharge pipe; 225. Material temperature sensor; 226. First air pressure temperature sensor; 227. Second air pressure temperature sensor; 228. Third air pressure temperature sensor;

[0034] 3. Operating system; 301. Waste heat utilization device; 302. Water supply equipment; 303. Water supply pipeline; 304. Circulating hot water storage device; 305. Circulating water pipeline; 306. Condensate storage device; 307. Condensate pipeline; 308. Liquid temperature sensor; 309. Liquid flow meter; 310. pH sensor; 311. Heat exchanger; 312. First heat exchange pipeline; 313. First oxygen detector; 314. First gas temperature sensor; 315. Second heat exchange pipeline; 316. Heat exchange fan; 317. Second gas temperature sensor; 318. Flue gas processor; 319. First flue gas circulation pipeline; 320. Gas flow control valve; 321. Second flue gas circulation pipeline; 322. Smoke exhaust fan; 3 23. Smoke exhaust pipe; 324. Third gas temperature sensor; 325. Gas composition detector; 326. Gas combustion device; 327. First flue gas return pipe; 328. Second oxygen detector; 329. Fourth gas temperature sensor; 330. Fuel supplier; 331. Fuel supply pipe; 332. Burner; 333. First return fan; 334. Second flue gas return pipe; 335. Third oxygen detector; 336. Fifth gas temperature sensor; 337. Second return fan; 338. Third flue gas return pipe; 339. Air filter; 340. Gas pipeline; 341. Intake fan; 342. Drive motor; 343. Central shaft upper end fixing cap; 344. Central shaft lower end fixing cap;

[0035] 4. Control system. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of this specification to clearly and completely describe the technical solutions in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0037] Embodiment 1

[0038] like Figures 1 to 7As shown, the present embodiment 1 provides an integrated equipment for low-carbon regeneration of sludge auxiliary cementitious materials, the integrated equipment comprising: a base 1; a processing system 2, the processing system 2 comprising a refractory inner cylinder 201, a spiral pipe 202 and a rotating central axis 203, the refractory inner cylinder 201 is arranged on the base 1, the rotating central axis 203 is arranged at the center of the refractory inner cylinder 201 and passes through the refractory inner cylinder 201, the rotating central axis 203 is a hollow structure, and a plurality of intermediate unloading partitions 204 and a plurality of peripheral layers are arranged along the vertical direction of the refractory inner cylinder 201. The side unloading partition 205, the middle unloading partition 204 and the peripheral unloading partition 205 are alternately arranged from top to bottom along the vertical direction of the refractory inner tube 201; the periphery of each of the middle unloading partitions 204 is connected to the refractory inner tube 201, and the inner periphery of each of the middle unloading partitions 204 is at a certain distance from the rotation center axis 203, forming a first unloading port 206; the periphery of each of the peripheral unloading partitions 205 is connected to the refractory inner tube 201, and the edge of each of the peripheral unloading partitions 205 is provided with a plurality of second unloading ports 206. 07; the inner periphery of each of the peripheral unloading partitions 205 is rotatably connected to the rotating central axis 203; wherein, a first sealer 208 is provided at the connection between the rotating central axis 203 and the refractory inner cylinder 201; the intermediate unloading partition 204 is provided at the upper end of the refractory inner cylinder 201 and the lower end of the refractory inner cylinder 201; a plurality of alternating intermediate unloading partitions 204 and the peripheral unloading partitions 205 constitute a drying layer S1, a carbonization layer S2, a heat modification layer S3 and a cooling layer S4, wherein the drying layer S1, the carbonization layer S2, the heat modification layer S3 and the cooling layer S4 are connected to each other. The thermal modification layer S3 and the cooling layer S4 are sequentially arranged from top to bottom along the vertical direction of the refractory inner tube 201; a spiral pipe passage opening 209 is arranged on the periphery of each intermediate unloading partition 204 and each peripheral unloading partition 205 in the thermal modification layer S3, so as to facilitate the arrangement of a spiral pipe 202 in the thermal modification layer S3; the spiral pipe 202 passes through the spiral pipe passage opening 209 and is spirally arranged on the refractory inner tube 201; a sealing device that fits with the spiral pipe 202 is arranged at the spiral pipe passage opening 209.

[0039] The integrated equipment for low-carbon regeneration of sludge auxiliary cementitious materials of the present invention comprises a base, a processing system, an operating system and a control system, and the control system controls the operating system to process the processing system.

[0040] In the processing system, a plurality of intermediate unloading partitions and a plurality of peripheral unloading partitions are alternately arranged from top to bottom in the vertical direction of the refractory inner tube. At the same time, the peripheries of the intermediate unloading partitions and the peripheral unloading partitions are connected to the refractory inner tube. A rotating central axis is arranged at the center of the refractory inner tube. The rotating central axis passes through the refractory inner tube. A first sealer is arranged at the connection between the top of the refractory inner tube and the rotating central axis. The centers of the intermediate unloading partitions and the peripheral unloading partitions pass through the rotating central axis, and the intermediate unloading partitions and the rotating central axis are spaced a certain distance apart from the rotating central axis to form a circular ring with the rotating central axis as the center, which is the unloading port of the intermediate unloading partition; a plurality of semicircular openings with the rotating central axis as the axis of symmetry are arranged on the periphery of the peripheral unloading partition, which is the unloading port of the peripheral unloading partition.

[0041] When the integrated equipment is used for material preparation, the sludge located in the middle unloading partition will fall from the discharge port of the middle unloading partition into the peripheral unloading partition, and then fall from the discharge port of the peripheral unloading partition into the middle unloading partition, and then fall from the discharge port of the middle unloading partition into the peripheral unloading partition, and the cycle continues; in the integrated equipment of the present invention, a plurality of alternating middle unloading partitions and peripheral unloading partitions constitute a drying layer, a carbonization layer, a heat modification layer and a cooling layer, and the number of layers of the middle unloading partitions and the peripheral unloading partitions in the drying layer, the carbonization layer, the heat modification layer and the cooling layer can be determined according to actual needs. It is to be determined that the main function of the drying layer is to dry the sludge, the main function of the carbonization layer is to carbonize the dried sludge, the main function of the heat modification layer is to heat modify the carbonized sludge to obtain materials, and the main function of the cooling layer is to cool the heat modified materials for easy collection. The integrated equipment of the present invention realizes drying, carbonization, heat modification and cooling in one. Compared with the combined use of separate drying, carbonization, heat modification and cooling equipment, the number of equipment sets is greatly reduced, the heat utilization efficiency is greatly improved, the calorific value of the sludge itself is fully utilized, and the operating cost is reduced.

[0042] At the same time, the peripheral unloading partition is rotatably connected to the rotating center axis, and the peripheral unloading partition and the intermediate unloading partition do not affect the rotation of the rotating center axis; in the heat modification layer, a spiral pipe is arranged spirally in the refractory inner tube of the heat modification layer, and the spiral pipe is connected to the operating system, which prolongs the residence time of the flue gas passing through the spiral pipe in the heat modification layer, so that the pollutants in the flue gas in the spiral pipe are fully decomposed, and the pollutants in the discharged flue gas are reduced. A spiral pipe passage opening is arranged on each intermediate unloading partition and each peripheral unloading partition of the heat modification layer, and the spiral pipe passage opening opened allows the spiral pipe to spiral through the intermediate unloading partition and the peripheral unloading partition, and at the same time, a sealing device that fits the spiral pipe is arranged at the spiral pipe passage opening to prevent the material from leaking into the cooling layer from the gap between the spiral pipe and the spiral pipe passage opening, resulting in incomplete thermal modification of some materials.

[0043] In addition, the exterior of the refractory inner tube, the middle unloading partition and the peripheral unloading partition are covered with refractory materials to prevent the refractory inner tube, the middle unloading partition and the peripheral unloading partition from being damaged by high temperature when the integrated equipment is working. The integrated equipment of the present invention is controlled by a control system, which timely monitors and analyzes data and makes adjustments in real time to ensure that system parameters are within the set range, and solves related problems as soon as possible, so that the equipment is in a good operating state. During the operation of the system, the various devices of the treatment and disposal system can be regularly checked, and equipment that does not meet the equipment requirements and has existing safety hazards can be replaced in time, which greatly guarantees the safe operation of the equipment and greatly improves the efficiency of the equipment. After the system is shut down, it must be cleaned and maintained in time to ensure the next smooth operation and service life of the treatment and disposal system.

[0044] At the same time, the integrated equipment can control the total air intake under the condition of sufficient sludge calorific value and the quality of thermally modified materials, thereby controlling the carbon content of the materials and playing a role in carbon fixation. The thermally modified materials formed can replace part of the cement dosage as auxiliary cementitious materials, play a role in reducing carbon emissions, and can also be supplied as raw materials for building materials such as concrete, bricks, and mortar, greatly expanding the efficiency channels and ensuring the final disposal. At the same time, according to the calorific value of the sludge, it can coordinate the treatment of municipal pipe network sludge, river black and smelly bottom mud and some abandoned engineering mud, contributing to the construction of a waste-free city.

[0045] In some possible implementations, the integrated equipment also includes an operating system 3 and a control system 4; the operating system 3 includes: a waste heat utilization device 301, the waste heat utilization device 301 includes a waste heat utilization device body, a first waste heat gas path and a second waste heat gas path; a water supply device 302, the water supply device 302 is connected to the waste heat utilization device body through a water supply pipe 303; a circulating hot water storage device 304, the circulating hot water storage device 304 is connected to the waste heat utilization device body through a circulating water pipe 305; a condensed water storage device 306, the condensed water storage device 306 is connected to one end of the first waste heat gas path through a condensed water pipe 307; wherein a liquid temperature sensor 308, a liquid flow meter 309 and a pH sensor 310 are provided on the condensed water pipe 307; the waste heat utilization device 301, the water supply device 302, the circulating hot water storage device 304, the liquid temperature sensor 308, the liquid flow meter 309 and the pH sensor 310 are respectively connected to the control system 4.

[0046] Specifically, the waste heat utilization device can cool and separate the water and recover the waste heat of the flue gas in the drying layer. The water supply system supplies cold water. The water in the hot flue gas condenses into water droplets when it is cold and is collected by the condensate storage device for standby or discharged after treatment. When the water droplets enter the condensate storage device, they pass through the liquid temperature sensor, liquid flow meter and pH sensor. The temperature, flow rate and pH value of the water entering the condensate storage device are tested by the liquid temperature sensor, liquid flow meter and pH sensor respectively, and the drying of the sludge by the drying layer can be detected. At the same time, the gas after the condensed water is separated enters the heat exchanger. The high-temperature flue gas discharged from the drying layer enters the waste heat utilization device, and the waste heat utilization device recovers the condensation heat. The hot water formed by the recovered waste heat is stored in the circulating hot water storage device. The water entering the circulating hot water storage device can be used as sludge conditioning water to increase the temperature of the sludge entering this equipment. It can also provide hot water for other processes and serve as a heating source.

[0047] In some possible implementations, the operating system 3 further includes: a heat exchanger 311, the heat exchanger 311 including a first heat exchange gas path and a second heat exchange gas path; two first heat exchange pipes 312, one end of the first heat exchange pipe 312 is connected to one end of the first waste heat gas path, and the other end of the first heat exchange pipe 312 is connected to one end of the first heat exchange gas path; one end of another first heat exchange pipe 312 is connected to the other end of the first waste heat gas path, and the other end of another first heat exchange pipe 312 is connected to the upper end of the drying layer S1; wherein a first oxygen detector 313 is provided on one of the first heat exchange pipes 312, and the first oxygen detector 313 is away from the waste heat utilization device 3 A first gas temperature sensor 314 is provided on one side of 01; a plurality of second heat exchange pipes 315, one end of each of the second heat exchange pipes 315 is connected to the other end of the first heat exchange gas path, and the other end of each of the second heat exchange pipes 315 is connected to the drying layer S1; a heat exchange fan 316 is provided at the connection end of each of the second heat exchange pipes 315 and the first heat exchange gas path, and a second gas temperature sensor 317 is provided on the side of the heat exchange fan 316 away from the heat exchanger 311; wherein the heat exchanger 311, the first oxygen detector 313, the first gas temperature sensor 314, the heat exchange fan 316 and the second gas temperature sensor 317 are respectively connected to the control system 4.

[0048] Specifically, the high-temperature flue gas in the drying layer can evaporate the moisture in the sludge, and the moisture in the flue gas will be taken out in the process of the flue gas being discharged from the drying layer. The first heat exchange pipe allows the high-temperature flue gas in the drying layer to enter the waste heat utilization device for waste heat recovery, so that the moisture in the high-temperature flue gas is condensed and separated from the flue gas. The flue gas separated from the moisture then enters the heat exchanger through the first heat exchange pipe. After the flue gas is heated to different temperatures in the heat exchanger, the flue gas heated to different temperatures in the heat exchanger enters the drying layer through the second heat exchange pipe due to the action of the heat exchange fan, providing heat for the drying of the sludge in the drying layer, so that the sludge in different layers of the drying layer is heated evenly, avoiding carbonization due to excessive temperature of the material, and at the same time, the material in the drying layer is dried under appropriate temperature control to avoid the generation of pyrolysis gas.

[0049] In the process that the high-temperature flue gas in the drying layer enters the waste heat utilization device and the flue gas after passing through the heat exchanger enters the drying layer, the first gas temperature sensor is used to detect the temperature of the flue gas so as to monitor the temperature of the drying layer. At the same time, in order to prevent the drying layer from generating pollutants such as dioxins, the drying layer needs to be in an oxygen-free state. The first oxygen detector is used to detect whether the flue gas contains oxygen. When oxygen is detected, the flue gas containing oxygen enters the flue gas treatment system and is discharged through the cooperation of the heat exchange fan and the gas flow control valve. After the first oxygen detector detects no oxygen in the flue gas, the heat exchange fan and the gas flow control valve are used to replenish oxygen-free gas from the flue gas treatment system to make the drying layer in an oxygen-free state, thereby ensuring the safety of the operation of the drying layer. Then the flue gas in the drying layer takes away the moisture in the sludge and enters the waste heat utilization device. This cycle is repeated to accelerate the drying speed of the sludge in the drying layer and ensure that the drying layer has sufficient drying gas. The drying layer is composed of a number of middle unloading compartments and a number of peripheral unloading compartments. In the process of drying the sludge in the drying layer, the number of layers in the drying layer, the gas circulation speed inside the drying layer, the speed of the rotating central axis and the feeding speed of the screw feeder can be comprehensively controlled to ensure that the sludge achieves a good drying effect and that the sludge enters the carbonization layer in an absolutely dry state. At the same time, oxygen-free flue gas is added from the flue gas treatment system through a gas flow control valve to balance the gas volume in the drying layer (S1).

[0050] In some possible implementations, the operating system 3 also includes: a flue gas processor 318; a first flue gas circulation pipe 319, one end of which is connected to the flue gas processor 318, and the other end of which is connected to one end of the first heat exchange gas path; a gas flow control valve 320 is provided between the first flue gas circulation pipe 319 and the first heat exchange gas path; two second flue gas circulation pipes 321, one end of which is connected to the flue gas processor 318, and the other end of which is connected to one end of the second waste heat gas path; and another end of the second flue gas circulation pipe 321 is connected to the second waste heat gas path. The other end is connected, and the other end of another second flue gas circulation pipe 321 is connected to one end of the second heat exchange gas path; a smoke exhaust fan 322 is arranged between the second flue gas circulation pipe 321 and the flue gas processor 318; a smoke exhaust pipe 323, the smoke exhaust pipe 323 is arranged on the smoke gas processor 318 and is connected to the smoke gas processor 318, and a third gas temperature sensor 324 and a gas composition detector 325 are arranged between the smoke exhaust pipe 323 and the smoke gas processor 318 from bottom to top; wherein, the smoke processor 318, the gas flow control valve 320, the smoke exhaust fan 322, the third gas temperature sensor 324 and the gas composition detector 325 are respectively connected to the control system 4.

[0051] Specifically, the flue gas discharged from the heat modification layer through the spiral pipe is cooled by the heat exchanger due to the action of the smoke exhaust fan, and then enters the waste heat utilization device through the second flue gas circulation pipe. After the waste heat is recovered in the waste heat utilization device, it enters the flue gas processor through the second flue gas circulation pipe for treatment. After the treated flue gas, a part of the oxygen-free gas enters the heat exchanger through the gas flow control valve for heat exchange, and then enters the drying layer to make up for the gas in the drying layer, so that the drying layer is in an oxygen-free state, preventing the formation of pollutants such as dioxins and ensuring the safety of the operation of the drying layer. In this process, the amount of gas entering the heat exchanger is controlled by the control system through the gas flow control valve; the other part of the gas is discharged from the smoke exhaust chimney after being processed by the smoke exhaust processor. The gas composition detector installed at the bottom of the smoke exhaust chimney monitors the composition of the exhausted flue gas in real time to ensure that the flue gas meets the emission standards. At the same time, the flue gas discharged from the heat modification layer through the spiral pipe can increase the circulation speed of the drying layer gas in this process to accelerate the drying of the sludge in the drying layer. In addition, the flue gas from the heat modification layer and the flue gas from the drying layer have different gas paths in the waste heat utilization device and the heat exchanger, and are isolated from each other to avoid gas crossover. At the same time, the temperature of the heat modification layer is very high, and the temperature of the discharged flue gas is also very high. After heat exchange and cooling in the heat exchanger, the heat exchanged provides thermal energy for heating the flue gas discharged from the drying layer. This gradient heat utilization method greatly improves the waste heat utilization efficiency of the flue gas discharged from the heat modification layer. The flue gas discharged from the heat modification layer is cooled and heat exchanged in the heat exchanger, so that the flue gas temperature is quickly reduced, avoiding the generation of pollutants in the flue gas during the cooling stage, reducing the difficulty of flue gas treatment at the back end, and at the same time, the normal operation of the corresponding components is guaranteed after the flue gas temperature is reduced.

[0052] In some possible implementations, the operating system 3 further includes: a gas combustion device 326; three first flue gas return pipes 327, one end of a first first flue gas return pipe 327 is connected to one end of the gas combustion device 326, and the other end of the first first flue gas return pipe 327 is connected to the upper end of the heat-modified layer S3; one end of a second first flue gas return pipe 327 is connected to the other end of the gas combustion device 326, and the other end of the second first flue gas return pipe 327 is connected to the lower end of the spiral pipe 202; the third One end of the first flue gas return duct 327 is connected to the upper end of the spiral duct 202, and the other end of the third first flue gas return duct 327 is connected to the other end of the second heat exchange gas path; wherein, the first first flue gas return duct 327 is provided with a second oxygen detector 328, and the second oxygen detector 328 is provided with a fourth gas temperature sensor 329 on the side away from the gas combustion device 326; the gas combustion device 326, the second oxygen detector 328 and the fourth gas temperature sensor 329 are respectively connected to the control system (4).

[0053] Specifically, the flue gas from the heat-modified layer enters the gas combustion device through the first flue gas return pipe for combustion. The flue gas after the combustion of the heat-modified layer is high-temperature oxygen-free flue gas, which contains some combustible substances returned from the carbonization layer. The flue gas containing combustible substances is secondary burned in the gas combustion device, which can greatly save fuel. The second oxygen detector set on the first flue gas return pipe monitors whether the flue gas entering the gas combustion device contains oxygen to ensure that the heat-modified layer is in normal operation. The flue gas after combustion in the gas combustion device enters the spiral pipe inside the heat-modified layer through the first flue gas return pipe. The pollutants in the flue gas in the spiral pipe are fully decomposed at the high temperature inside the heat-modified layer, and then enter the heat exchanger for heat exchange cooling, rapid cooling, and avoid the generation of pollutants in the flue gas cooling stage.

[0054] In some possible implementations, the operating system 3 also includes: a fuel supplier 330; a plurality of fuel supply pipelines 331, one end of each of the fuel supply pipelines 331 being connected to each layer of the heat-modified layer S3, and the other end of each of the fuel supply pipelines 331 being connected to the fuel supplier 330, and each of the fuel supply pipelines 331 being provided with a burner 332; wherein the fuel supplier 330 and the burner 332 are respectively connected to the control system 4.

[0055] Specifically, the control system controls the fuel supplier to provide fuel and controls the combustion of the burner. The fuel supplier provides fuel for the fuel burner to burn. The heat generated by the combustion of the burner enters the thermal modification layer, so that the thermal modification layer is in a high temperature state, and the carbonized sludge entering the thermal modification layer is thermally modified. The carbonized sludge and carbonized gas are burned to fully release heat energy, thereby ensuring the quality of the thermally modified material and reducing the generation of pollutants.

[0056] In some possible implementations, the operating system 3 further includes: a first return fan 333; two second smoke return pipes 334, one end of the second smoke return pipe 334 is connected to the first return fan 333, and the other end of the second smoke return pipe 334 is connected to the upper end of the carbonized layer S2; one end of another second smoke return pipe 334 is connected to the first return fan 333, and the other end of another second smoke return pipe 334 is connected to the lower end of the thermally modified layer S3, and one of the second smoke return pipes 334 is provided with a second smoke return pipe 334; three oxygen detectors 335, a fifth gas temperature sensor 336 is provided on the side of the third oxygen detector 335 away from the first return fan 333; a second return fan 337; two third smoke return pipes 338, one end of one of the third smoke return pipes 338 is connected to the cooling layer, and the other end of one of the third smoke return pipes 338 is connected to the second return fan 337; one end of the other third smoke return pipe 338 is connected to the second return fan 337, and the other end of the other third smoke return pipe 338 is connected to the rotating central axis 20 3 is connected to the upper end of the third smoke return duct 338 to form a communication channel between the third smoke return duct 338 and the rotating central shaft 203; an air filter 339, one end of the air filter 339 is connected to the lower end of the cooling layer S4 through an air delivery duct 340, an air intake fan 341 is provided between the air filter 339 and the lower end of the cooling layer S4, the other end of the air filter 339 is connected to the lower end of the rotating central shaft 203 through an air delivery duct 340 to form a communication channel between the air delivery duct 340 and the rotating central shaft 203; a driving motor 342, the The driving motor 342 is connected to the rotating central shaft 203 to drive the rotating central shaft 203 to rotate; wherein, the upper end of the rotating central shaft 203 is provided with a central shaft upper end fixing cap 343, and the lower end of the rotating central shaft 203 is provided with a central shaft lower end fixing cap 344, and the central shaft lower end fixing cap 344 is provided on the base 1; the first return fan 333, the third oxygen detector 335, the fifth gas temperature sensor 336, the second return fan 337, the air filter 339, and the driving motor 342 are respectively connected to the control system 4.

[0057] Specifically, the carbonization layer can make full use of the thermal radiation heat of the heat modification layer. At the same time, part of the air passing through the air filter enters the cooling layer from the bottom of the cooling layer under the action of the air intake fan, cools the heat-modified material, and makes the heat-modified material quickly and fully cooled to ensure the gelling properties of the material. At the same time, the preheating in the material is fully utilized to preheat the air. The preheated air enters the heat modification layer upward from the discharge port of the middle discharge partition or the discharge port of the peripheral discharge partition, participates in the combustion of combustible materials in the heat modification layer, consumes the oxygen in the air entering the heat modification layer, and the temperature after combustion is 800-850°C. The flue gas after combustion in the heat modification layer is in a high-temperature oxygen-free state. Part of the flue gas in a high-temperature oxygen-free state quickly enters the carbonization layer through the discharge port of the peripheral discharge partition or the discharge port of the middle discharge partition under the action of the first return fan, so that the sludge in the carbonization layer is fully carbonized, ensuring the carbonization speed of the sludge and producing combustible materials. Under the action of the first return fan, the carbonization The combustible substances produced by the carbonized sludge in the layer enter the bottom of the thermal modification layer along with the flue gas. The third oxygen detector monitors the oxygen content of the flue gas entering the thermal modification layer from the carbonization layer. Through the action of the first reflux fan, it ensures that the oxygen in the thermal modification layer is fully burned, and at the same time ensures that the carbonization layer is in an oxygen-free state, so that the third oxygen detector cannot detect oxygen; the combustible substances in the thermal modification layer are burned, providing heat for the thermal modification layer and reducing organic pollution; part of the high-temperature oxygen-free flue gas in the thermal modification layer enters the gas combustion device from the upper part of the thermal modification layer for secondary combustion, and then enters the heat exchanger through the spiral pipe spiraling inside the thermal modification layer, enters the waste heat utilization device after heat exchange cooling, and then enters the flue gas processor through the smoke exhaust fan for flue gas treatment. After the treatment meets the standards, it is discharged from the smoke exhaust chimney, reducing air pollution; at the same time, since a sealed feeder is set at the discharge port between the drying layer and the carbonization layer, the flue gas in the carbonization layer will not enter the drying layer to affect the drying sludge in the drying layer.

[0058] In addition, another part of the air that passes through the air filter enters the rotating central shaft from the bottom of the rotating central shaft, which reduces the temperature of the rotating central shaft in the heat-modified layer section, ensures the normal operation of the rotating central shaft, and can increase the service life of the rotating central shaft. At the same time, the air in the rotating central shaft is preheated. The preheated air in the rotating central shaft passes through the rotating central shaft and the third flue gas return duct under the action of the second return fan and enters the cooling layer, and enters the heat-modified layer from the discharge port of the middle discharge compartment or the discharge port of the peripheral discharge compartment, and participates in the combustion of combustible materials in the heat-modified layer. The driving motor mainly drives the rotating central shaft to rotate. The upper end fixing cap and the lower end fixing cap of the central shaft provided at the upper and lower ends of the rotating central shaft respectively seal the connection between the rotating central shaft and the third flue gas return duct and the connection between the rotating central shaft and the gas pipeline to prevent gas leakage, and provide a relative rotation support for the rotating central shaft.

[0059] In some possible implementations, the processing system 2 further includes: a plurality of groups of stirring arms 210, one end of each group of stirring arms 210 being arranged on the rotating neutral axis 203 through a quick bayonet 211, and a group of pulleys being arranged correspondingly at the other end of each group of stirring arms 210; a group of stirring arms 210 being arranged above each of the intermediate unloading partitions 204 and above each of the peripheral unloading partitions 205; stirring rake teeth being arranged on each group of stirring arms 210; a plurality of guide grooves 212, the guide grooves 212 being arranged on the intermediate unloading partitions 204 and above each of the peripheral unloading partitions 205; On the refractory inner cylinder 201, each of the guide grooves 212 has a group of pulleys similar to it; a protective support outer cylinder 213, the protective support outer cylinder 213 is arranged on the base (1) and distributed on the periphery of the refractory inner cylinder 201 to envelop the refractory inner cylinder; a plurality of groups of inspection windows 214, each group of the inspection windows 214 includes a plurality of inspection windows 214, each of the inspection windows 214 in any group is arranged on the protective support outer cylinder 213 and communicates with the refractory inner cylinder 201; each group of the inspection windows 214 corresponds to each group of the stirring The mixing arm 210 is provided; a plurality of groups of kiln cameras 215, wherein the fixed end of each of the kiln cameras 215 in any group is provided on the protective support outer cylinder 213, and the camera end of each of the kiln cameras 215 in the plurality of groups is provided on the refractory inner cylinder 201 to monitor the material condition in the refractory inner cylinder 201; a support frame 216, wherein the support frame (216) is provided on the base 1 and is distributed on the periphery of the support frame (216) to surround the protective support outer cylinder 213, and the upper end of each group of the support frame 216 A frame crossbeam 217 is provided; the fixing cap 343 at the upper end of the central axis is provided on the frame crossbeam 217; a plurality of groups of operating platforms 218, each group of the operating platforms (218) includes a plurality of operating platforms (218), and the two ends of each of the operating platforms 218 in any group are respectively provided on the supporting frame (216) and the protective supporting outer cylinder (213) at the corresponding positions of the drying layer S1, the carbonization layer S2, the heat modification layer S3 and the cooling layer S4; wherein the kiln camera 215 is connected to the control system 4.

[0060] Specifically, a stirring rake is provided on the stirring arm, and a pulley is also provided at the tail of the stirring arm. The stirring arm is fixed on the rotating central shaft by a bayonet, so that the stirring arm and the rotating central shaft can be quickly connected, and the stirring arm and the stirring rake and pulley provided on the stirring arm can be quickly repaired when only the feeding of the spiral feeder is stopped; the guide groove is fixed to the refractory inner cylinder by a connecting rod, and the pulley slides along the guide groove. Due to the action of the connecting rod, the guide groove and the spiral pipe of the heat-modified layer are staggered, so as to avoid the stirring arm from being unable to rotate due to the collision with the spiral pipe during the rotation of the rotating central shaft. The setting of the pulley and the guide groove reduces the pressure on the rotating center shaft, ensures the normal operation of the rotating center shaft and the stirring arm, avoids the damage of the intermediate unloading partition and the peripheral unloading partition due to breakage and deformation of the stirring arm, and at the same time increases the service life of the rotating center shaft and the stirring arm; before the integrated equipment of the present invention is operated, the system parameters are set through the control system and the equipment is ensured to be in the closed state, the dewatered sludge cake to be processed is prepared, and then the equipment is started through the control system, the fuel supplier and the burner start working, the heat modification layer is heated, and the temperature of the heat modification layer is increased.

[0061] When the third gas temperature sensor shows that the set temperature has been reached, the dehydrated sludge cake is placed in the crushing device and crushed before entering the screw feeder. Then, it passes through the sealed discharger at the outlet of the screw feeder to ensure that the airflow of the drying layer does not leak out through the screw feeder, and also prevents external air from entering the drying layer through the screw feeder, thereby ensuring the smooth operation of each device. The dehydrated sludge enters the middle unloading compartment at the upper end of the drying layer from the sealed discharger. When the rotating central axis rotates driven by the driving motor, the stirring arm rotates with the rotating central axis at the same time. During the rotation, the pulley at the tail end of the stirring arm slides along the guide groove, and the stirring rake teeth gradually move the sludge material in the middle unloading compartment to the discharge port of the middle unloading compartment, and enter the discharge port and fall into the peripheral unloading compartment of the next layer. The material compartment is then raked open by the stirring rake teeth of the next layer, and the sludge material in the peripheral unloading compartment is gradually moved to the discharge port of the peripheral unloading compartment, and then enters the discharge port and falls into the middle unloading compartment of the next layer, and circulates downward in this way until the material enters the material storage through the discharge port and the discharge pipe at the lower end of the cooling layer. After the discharge guide of the discharge pipe reaches the set value, the fuel supplier is closed to stop the burner. At the same time, the temperature of the third air pressure temperature sensor and the fourth gas temperature sensor is monitored in real time. When the temperature is lower than the set value, the control system automatically starts the fuel supplier to make the burner work, ensuring that the temperature is maintained within the set value range, maintaining the key parameters of the equipment normal, ensuring that the sludge has gelling properties and the flue gas meets the standard emission. In addition, the temperature of the heat-modified layer can be controlled by controlling the rotation speed of the rotating central axis and the feeding speed of the screw feeder, ensuring that the heat-modified layer burns the carbonized sludge and carbonized gas at a stable temperature, fully releasing heat energy, ensuring the quality of the heat-modified material, and greatly reducing the generation of pollutants. The protective support outer cylinder is set outside the refractory inner cylinder to provide protection and support for the refractory inner cylinder. By setting a kiln camera in the refractory inner cylinder, the material conditions during drying, carbonization, thermal modification and cooling, as well as the conditions of the stirring arm and stirring rake teeth can be fully monitored. At the same time, an inspection window is set on each layer of the stirring arm, and when a problem is found, it can be repaired in time through the inspection window. The protective support frame provides the main frame support for the integrated equipment.

[0062] In some possible implementations, the processing system 2 also includes: a crushing device 219; a screw feeder 220, one end of the screw feeder 220 is connected to the crushing device 219, and the other end of the screw feeder 220 passes through the protective support outer cylinder 213 and the refractory inner cylinder 201 in sequence to enter the upper end of the drying layer S1, so that the material enters the drying layer S1 through the screw feeder 220; a sealed discharger 221 is provided at the end of the other end of the screw feeder; wherein the crushing device 219 and the screw feeder 220 are respectively connected to the control system 4.

[0063] Specifically, the control system controls the operation of the crushing device and the screw feeder. The dewatered sludge cake enters the crushing device and is crushed before entering the screw feeder. It then enters the middle unloading compartment at the upper end of the drying layer through the sealed discharger. The sealed discharger set at the outlet of the screw feeder ensures that the airflow in the drying layer does not leak through the screw feeder, and also prevents external air from entering the drying layer through the screw feeder, thereby ensuring the smooth operation of each device.

[0064] In some possible implementations, the processing system 2 further includes: a sealed discharger 222, the sealed discharger 222 being disposed at the second discharge port 207 where the drying layer S1 enters the carbonization layer S2; a material storage device 223, the material storage device 223 being connected to the first discharge port 206 at the lower end of the cooling layer S4 via a discharge pipe 224; a material temperature sensor 225, the material temperature sensor 225 being disposed inside the material storage device 223; a first air pressure temperature sensor 226, the first air pressure temperature sensor 226 being disposed inside the drying layer S1 ; a second air pressure temperature sensor 227, the second air pressure temperature sensor 227 is arranged inside the carbonization layer S2; a third air pressure temperature sensor 228, the third air pressure temperature sensor 228 is arranged inside the heat modification layer S3; wherein the peripheral unloading partition 205 located between the drying layer S1 and the carbonization layer S2 is connected to the rotating neutral axis 203 by a rotary dynamic seal; the material temperature sensor 225, the first air pressure temperature sensor 226, the second air pressure temperature sensor 227 and the third air pressure temperature sensor 228 are connected to the control system 4.

[0065] Specifically, the lower end of the drying layer is a peripheral unloading partition, and a sealed discharger is arranged at the discharge port of the peripheral unloading partition. At the same time, the peripheral unloading partition is connected to the rotating neutral axis by a rotary dynamic seal, so as to achieve smooth unloading while preventing the carbonization layer gas from entering the drying layer. The lower end of the cooling layer is an intermediate unloading partition, and the discharge pipe is connected to the first discharge port, so that the material enters the material storage device. The material storage device is used to store the last obtained material, and the material temperature sensor is used to monitor the temperature of the material falling into the material storage device from the discharge pipe. The air pressure temperature of the drying layer, the carbonization layer and the heat modification layer is monitored by the first air pressure temperature sensor, the second air pressure temperature sensor and the third air pressure temperature sensor. The second reflux fan, the air intake fan, the smoke exhaust fan and the gas flow control valve are controlled by the control system to keep the drying layer, the carbonization layer, the heat modification layer and the cooling layer in a slightly negative pressure state to ensure that the gas in the equipment does not leak out.

[0066] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. An integrated equipment for low-carbon regeneration of sludge auxiliary cementitious materials, characterized in that: The integrated equipment comprises: Base (1); A processing system (2), the processing system (2) comprising a refractory inner tube (201), a spiral pipe (202) and a rotating central axis (203), the refractory inner tube (201) being arranged on the base (1), the rotating central axis (203) being arranged at the center of the refractory inner tube (201) and passing through the refractory inner tube (201), the rotating central axis (203) being a hollow structure, and a plurality of intermediate discharge partitions (204) and a plurality of peripheral discharge partitions (205) being alternately arranged in a vertical direction of the refractory inner tube (201); a first discharge port (206) being formed between the inner periphery of each intermediate discharge partition (204) and the rotating central axis (203); a second discharge port (207) being arranged at the edge of each peripheral discharge partition (205); and the inner periphery of each peripheral discharge partition (205) being rotatably connected to the rotating central axis (203); wherein a plurality of alternating intermediate discharge partitions (204) and peripheral discharge partitions (205) are formed with a drying layer (S1), a carbonization layer (S2), a heat modification layer (S3) and a cooling layer (S4) along the vertical direction in the refractory inner tube (201); a spiral pipe passage opening (209) is provided at the periphery of each intermediate discharge partition (204) and the periphery of each peripheral discharge partition (205) in the heat modification layer (S3); a spiral pipe (202) passes through the spiral pipe passage opening (209) and is spirally arranged on the refractory inner tube (201); a sealing device that fits with the spiral pipe (202) is provided at the spiral pipe passage opening (209) at the periphery of the intermediate discharge partition (204) and the periphery of the peripheral discharge partition (205); The integrated equipment further comprises an operating system (3) and a control system (4), wherein the operating system (3) comprises: A waste heat utilization device (301), the waste heat utilization device (301) comprising a waste heat utilization device body, a first waste heat gas path and a second waste heat gas path; A water supply device (302), wherein the water supply device (302) is connected to the waste heat utilization device body via a water supply pipe (303); A circulating hot water storage device (304), wherein the circulating hot water storage device (304) is connected to the waste heat utilization device body via a circulating water pipeline (305); A condensed water storage device (306), wherein the condensed water storage device (306) is connected to one end of the first waste heat gas path via a condensed water pipeline (307); The condensed water pipeline (307) is provided with a liquid temperature sensor (308), a liquid flow meter (309) and a pH sensor (310); the waste heat utilization device (301), the water supply device (302), the circulating hot water storage device (304), the liquid temperature sensor (308), the liquid flow meter (309) and the pH sensor (310) are respectively connected to the control system (4); The operating system (3) further comprises: A heat exchanger (311), wherein the heat exchanger (311) comprises a first heat exchange gas path and a second heat exchange gas path; Two first heat exchange pipes (312), one end of one of the first heat exchange pipes (312) is connected to one end of the first waste heat gas path, and the other end of one of the first heat exchange pipes (312) is connected to one end of the first heat exchange gas path; one end of another of the first heat exchange pipes (312) is connected to the other end of the first waste heat gas path, and the other end of another of the first heat exchange pipes (312) is connected to the upper end of the drying layer (S1); wherein a first oxygen detector (313) is provided on one of the first heat exchange pipes (312), and a first gas temperature sensor (314) is provided on a side of the first oxygen detector (313) away from the waste heat utilization device (301); a plurality of second heat exchange pipes (315), one end of each of the second heat exchange pipes (315) being connected to the other end of the first heat exchange gas path, and the other end of each of the second heat exchange pipes (315) being connected to the drying layer (S1); a heat exchange fan (316) being provided at the connection end of each of the second heat exchange pipes (315) and the first heat exchange gas path, and a second gas temperature sensor (317) being provided on a side of the heat exchange fan (316) away from the heat exchanger (311); The heat exchanger (311), the first oxygen detector (313), the first gas temperature sensor (314), the heat exchange fan (316) and the second gas temperature sensor (317) are respectively connected to the control system (4); The processing system (2) further comprises: A sealed discharger (222), the sealed discharger (222) being arranged at the second discharge port (207) where the drying layer (S1) enters the carbonization layer (S2); A material storage device (223), wherein the material storage device (223) is connected to the first discharge port (206) at the lower end of the cooling layer (S4) via a discharge pipe (224); A material temperature sensor (225), wherein the material temperature sensor (225) is arranged inside the material storage device (223); a first air pressure and temperature sensor (226), wherein the first air pressure and temperature sensor (226) is arranged inside the drying layer (S1); a second air pressure and temperature sensor (227), the second air pressure and temperature sensor (227) being arranged inside the carbonized layer (S2); a third air pressure and temperature sensor (228), the third air pressure and temperature sensor (228) being arranged inside the heat-modified layer (S3); The peripheral unloading partition (205) located between the drying layer (S1) and the carbonization layer (S2) is connected to the rotating central shaft (203) in a rotating dynamic seal; the material temperature sensor (225), the first air pressure temperature sensor (226), the second air pressure temperature sensor (227) and the third air pressure temperature sensor (228) are connected to the control system (4).

2. The integrated equipment for low-carbon regeneration of sludge auxiliary cementitious materials according to claim 1, characterized in that: The operating system (3) further comprises: Flue gas processor (318); a first flue gas circulation pipeline (319), one end of which is connected to the flue gas processor (318), and the other end of which is connected to one end of the first heat exchange gas path; a gas flow control valve (320) is provided between the first flue gas circulation pipeline (319) and the first heat exchange gas path; Two second flue gas circulation pipes (321), one end of one of the second flue gas circulation pipes (321) is connected to the flue gas processor (318), and the other end of one of the second flue gas circulation pipes (321) is connected to one end of the second waste heat gas path; one end of another second flue gas circulation pipe (321) is connected to the other end of the second waste heat gas path, and the other end of another second flue gas circulation pipe (321) is connected to one end of the second heat exchange gas path; a smoke exhaust fan (322) is provided between one of the second flue gas circulation pipes (321) and the flue gas processor (318); A smoke exhaust pipe (323), wherein the smoke exhaust pipe (323) is arranged on the smoke processor (318) and is connected to the smoke processor (318), and a third gas temperature sensor (324) and a gas composition detector (325) are arranged in sequence from bottom to top between the smoke exhaust pipe (323) and the smoke processor (318); The flue gas processor (318), the gas flow control valve (320), the smoke exhaust fan (322), the third gas temperature sensor (324) and the gas composition detector (325) are respectively connected to the control system (4).

3. The integrated equipment for low-carbon regeneration of sludge auxiliary cementitious materials as claimed in claim 2, characterized in that: The operating system (3) further comprises: Gas combustion device (326); Three first flue gas return pipes (327), one end of a first first flue gas return pipe (327) is connected to one end of the gas combustion device (326), and the other end of the first first flue gas return pipe (327) is connected to the upper end of the heat-modified layer (S3); one end of a second first flue gas return pipe (327) is connected to the other end of the gas combustion device (326), and the other end of the second first flue gas return pipe (327) is connected to the lower end of the spiral pipe (202); one end of a third first flue gas return pipe (327) is connected to the upper end of the spiral pipe (202), and the other end of the third first flue gas return pipe (327) is connected to the other end of the second heat exchange gas path; Among them, a second oxygen detector (328) is arranged on the first flue gas return pipe (327), and a fourth gas temperature sensor (329) is arranged on the side of the second oxygen detector (328) away from the gas combustion device (326); the gas combustion device (326), the second oxygen detector (328) and the fourth gas temperature sensor (329) are respectively connected to the control system (4).

4. The integrated equipment for low-carbon regeneration of sludge auxiliary cementitious materials as claimed in claim 3, characterized in that: The operating system (3) further comprises: A fuel supplier (330); a plurality of fuel supply pipelines (331), one end of each of the fuel supply pipelines (331) being connected to each layer of the heat-denatured layer (S3), the other end of each of the fuel supply pipelines (331) being connected to the fuel supplier (330), and each of the fuel supply pipelines (331) being provided with a burner (332); The fuel supplier (330) and the burner (332) are respectively connected to the control system (4).

5. The integrated equipment for low-carbon regeneration of sludge auxiliary cementitious materials as claimed in claim 4, characterized in that: The operating system (3) further comprises: A first return fan (333) and a second return fan (337); Two second smoke return pipes (334), one end of one of the second smoke return pipes (334) is connected to the first return fan (333), and the other end of one of the second smoke return pipes (334) is connected to the upper end of the carbonized layer (S2); one end of another second smoke return pipe (334) is connected to the first return fan (333), and the other end of another second smoke return pipe (334) is connected to the lower end of the thermally modified layer (S3); a third oxygen detector (335) is provided on one of the second smoke return pipes (334), and a fifth gas temperature sensor (336) is provided on the side of the third oxygen detector (335) away from the first return fan (333); Two third smoke return pipes (338), one end of one of the third smoke return pipes (338) is connected to the cooling layer, and the other end of one of the third smoke return pipes (338) is connected to the second return fan (337); one end of another third smoke return pipe (338) is connected to the second return fan (337), and the other end of another third smoke return pipe (338) is connected to the upper end of the rotating central shaft (203), so as to form a communication channel between the third smoke return pipe (338) and the rotating central shaft (203); An air filter (339), one end of the air filter (339) is connected to the lower end of the cooling layer (S4) via an air delivery pipe (340), an air intake fan (341) is provided between the air filter (339) and the lower end of the cooling layer (S4), and the other end of the air filter (339) is connected to the lower end of the rotating central shaft (203) via an air delivery pipe (340) to form a communication channel between the air delivery pipe (340) and the rotating central shaft (203); A driving motor (342), the driving motor (342) being connected to the rotating central shaft (203) to drive the rotating central shaft (203) to rotate; The upper end of the rotating central shaft (203) is provided with a central shaft upper end fixing cap (343), the lower end of the rotating central shaft (203) is provided with a central shaft lower end fixing cap (344), and the central shaft lower end fixing cap (344) is arranged on the base (1); the first return fan (333), the third oxygen detector (335), the fifth gas temperature sensor (336), the second return fan (337), the air filter (339), and the drive motor (342) are respectively connected to the control system (4).

6. The integrated equipment for low-carbon regeneration of sludge auxiliary cementitious materials as claimed in claim 5, characterized in that: The processing system (2) further comprises: A plurality of groups of stirring arms (210), one end of each group of stirring arms (210) being arranged on the rotating neutral axis (203) through a quick-release mount (211), and the other end of each group of stirring arms (210) being correspondingly provided with a group of pulleys; a group of stirring arms (210) being provided above each of the intermediate unloading partitions (204) and above each of the peripheral unloading partitions (205), and each group of stirring arms (210) being provided with stirring rake teeth; A plurality of guide grooves (212), wherein the guide grooves (212) are arranged on the refractory inner tube (201) through connecting rods, and each of the guide grooves (212) has a group of pulleys similarly matched thereto; A protective support outer cylinder (213), wherein the protective support outer cylinder (213) is arranged on the base (1) and is distributed around the periphery of the refractory inner cylinder (201) to envelop the refractory inner cylinder (201); A plurality of groups of inspection windows (214), each group of inspection windows (214) comprising a plurality of inspection windows (214), each of the inspection windows (214) in any group being arranged on the protective support outer cylinder (213) and communicating with the refractory inner cylinder (201); each group of the inspection windows (214) being arranged corresponding to a group of the stirring arms (210); A plurality of groups of kiln cameras (215), each group of the kiln cameras (215) comprising a plurality of the kiln cameras (215), the fixed end of each of the kiln cameras (215) in any group being arranged on the protective support outer cylinder (213), and the camera end of each of the kiln cameras (215) in the plurality of groups being arranged on the refractory inner cylinder (201), so as to monitor the material conditions in the refractory inner cylinder (201); a support frame (216), the support frame (216) being arranged on the base (1) and distributed on the periphery of the support frame (216) to surround the protective support outer cylinder (213); a frame crossbeam (217) being arranged at the upper end of the support frame (216); and a fixing cap (343) at the upper end of the central shaft being arranged on the frame crossbeam (217); A plurality of groups of operating platforms (218), each group of the operating platforms (218) comprising a plurality of operating platforms (218), and two ends of each of the operating platforms (218) in any group are respectively arranged on the support frame (216) and the protective support outer cylinder (213) at corresponding positions of the drying layer (S1), the carbonization layer (S2), the heat modification layer (S3) and the cooling layer (S4); Wherein, the kiln camera (215) is connected to the control system (4).

7. The integrated equipment for low-carbon regeneration of sludge auxiliary cementitious materials as claimed in claim 6, characterized in that: The processing system (2) further comprises: Crushing device (219); a screw feeder (220), one end of the screw feeder (220) being connected to the crushing device (219), and the other end of the screw feeder (220) passing through the protective support outer cylinder (213) and the refractory inner cylinder (201) in sequence to enter the upper end of the drying layer (S1), so that the material enters the drying layer (S1) through the screw feeder (220); a sealed discharger (221) is provided at the end of the other end of the screw feeder; Wherein, the crushing device (219) and the screw feeder (220) are respectively connected to the control system (4).

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