Coal gasification slag granulation apparatus

Abstract

The utility model discloses coal gasification furnace slag granulating equipment, coal gasification furnace slag granulating equipment includes the material conveying mechanism, material modification mechanism, material binding mechanism, material granulating mechanism and material drying mechanism that connect gradually, and material modification mechanism includes acid -base adjusting subassembly and modification subassembly. The utility model discloses the application of coal gasification furnace slag granulating equipment system, and the preparation time of granular adsorbing material is shortened significantly, saves manpower and space cost, and improves the granulating efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of waste recycling or reuse technology, and relates to a coal gasification slag granulation equipment. Background Technology

[0002] Coal gasification clean technology breaks through the traditional coal combustion mode, achieving efficient and clean conversion of coal through high-temperature gasification, effectively reducing greenhouse gas and pollutant emissions. However, if the coal gasification slag produced by this technology is not properly disposed of, it can cause serious pollution to the soil, water bodies, and atmospheric environment. Among them, the fine coal gasification slag and coarse coal gasification slag produced in the coal gasification process, as by-products, contain huge resource potential.

[0003] By employing processes such as modification, granulation, and drying, coal gasification slag can be prepared into high-performance granular adsorbent materials for wastewater purification and waste gas treatment, aligning with the environmental protection concept of "treating waste with waste." Modification equipment alters the material's properties through specific chemical reactions, granulation equipment shapes the muddy material, and drying equipment dehydrates and dries the material.

[0004] However, the existing preparation process adopts a segmented operation, and different processes need to be completed by independent equipment. This results in problems such as large labor input, large equipment footprint, and long production cycle, which makes it difficult to improve the preparation efficiency and restricts the industrialization process of high-value utilization of coal gasification slag. Utility Model Content

[0005] The purpose of this utility model is to provide a coal gasification slag granulation equipment, which solves the problems of large manpower input, large equipment footprint, and long production cycle in the existing technology.

[0006] The technical solution adopted by this utility model is a coal gasification slag granulation equipment, which includes a material conveying mechanism, a material modification mechanism, a material bonding mechanism, a material granulation mechanism and a material drying mechanism connected in sequence. The material modification mechanism includes an acid-base adjustment component and a modification component.

[0007] The features of this utility model also include:

[0008] The material conveying mechanism includes a storage tank, a weighing instrument installed at the bottom of the storage tank, a main conveying pipe connected to the tank wall, a feeding pump installed at the end of the main conveying pipe near the storage tank, and a first conveying branch pipe and a second conveying branch pipe at the end of the main conveying pipe away from the storage tank. The first conveying branch pipe is connected to an acid-base adjustment component, and the second conveying branch pipe is connected to a modification component. The first conveying branch pipe is equipped with a first conveying valve and a first vibration motor, and the second conveying branch pipe is equipped with a second conveying valve and a second vibration motor.

[0009] The acid-base adjustment component includes an acid-base reaction vessel with an insulated metal outer shell. A first feed branch pipe connects to the inside of the acid-base reaction vessel. An electric heating wire is installed on the outer wall of the acid-base reaction vessel. A temperature probe and a pH sensor are installed inside the acid-base reaction vessel. A first drive motor is fixedly connected to the acid-base reaction vessel. A first stirrer is installed at the output end of the first drive motor and extends into the acid-base reaction vessel. The acid-base reaction vessel is connected to an acid-resistant corrosion-resistant pipe and an alkali-resistant corrosion-resistant pipe. Both the acid-resistant and alkali-resistant corrosion-resistant pipes are equipped with dosing pumps and corrosion-resistant flow valves. The other end of the acid-resistant corrosion-resistant pipe is connected to an acid storage tank, and the other end of the alkali-resistant corrosion-resistant pipe is connected to an alkali storage tank. The acid storage tank has a first replenishment port, and the alkali storage tank has a second replenishment port. The acid-base reaction vessel is connected to a water inlet pipe with a water pump and a flow valve installed. The other end of the water inlet pipe is connected to a water storage tank with a water replenishment port. A first discharge pipe is installed at the output end of the acid-base reaction vessel and connects to a modification component.

[0010] The modification component includes a modification reactor, which has a first dosing port. A first discharge pipe connects to the modification reactor. An acid- and alkali-resistant corrosion-resistant pipe connects the first discharge pipe to the acid- and alkali-resistant reaction vessel and the modification reactor. A filter screen is installed inside the acid- and alkali-resistant corrosion-resistant pipe. The other end of the acid- and alkali-resistant corrosion-resistant pipe is connected to a waste liquid storage tank. A drain pipe connects to the lower end of the waste liquid storage tank. A first pneumatic butterfly valve is installed between the acid- and alkali-resistant reaction vessel and the acid- and alkali-resistant corrosion-resistant pipe. A second pneumatic butterfly valve is installed between the first discharge pipe and the acid- and alkali-resistant corrosion-resistant pipe and the modification reactor. A second drive motor is fixedly connected to the modification reactor. A second agitator is installed at the output end of the second drive motor and extends into the modification reactor. A second conveying branch pipe connects to the modification reactor. The output end of the modification reactor is connected to the second discharge pipe, which is connected to a material bonding mechanism.

[0011] The material bonding mechanism includes a bonding reactor, a second discharge pipe connected to the bonding reactor, a third pneumatic butterfly valve installed on the second discharge pipe, a second dosing port on the bonding reactor, a rotary atomizing nozzle installed inside the bonding reactor, the input end of the rotary atomizing nozzle connected to the second dosing port, a third drive motor fixedly connected to the bonding reactor, a third agitator installed at the output end of the third drive motor, the third agitator extending into the bonding reactor, a guide baffle on the side of the bonding reactor away from the third drive motor, and a forming pipe connected to the bottom of the bonding reactor at the guide baffle.

[0012] The material granulation mechanism includes a granulation tube, a forming pipe connected to the middle section of the granulation tube, a coaxial fixed pusher matching the inner diameter of the granulation tube, a movable telescopic rod fixedly connected to one side of the fixed pusher, a fourth drive motor installed at the other end of the movable telescopic rod passing through the end of the granulation tube, a granulation mold installed at the end of the granulation tube away from the movable telescopic rod, a fixed seat installed at the end of the granulation tube located at the granulation mold, a fixed rotating shaft rotatably connected to the fixed seat, the fixed rotating shaft being parallel to the axis of the granulation tube, a rotating blade fixedly connected to the end of the fixed rotating shaft away from the granulation tube, and a fifth drive motor connected to the end of the fixed rotating shaft away from the rotating blade.

[0013] The granulation mold is tubular, with one end threaded to the granulation tube and the other end fixed to a shaping sheet. The shaping sheet has through holes, which are circular or honeycomb-shaped.

[0014] The material drying mechanism includes a conveyor belt located below the granulation mold outlet. Drive rollers are installed at both ends of the conveyor belt. The output side of the conveyor belt is located inside the drying chamber. A vibrating screen is installed at the bottom of the drying chamber, and an electromagnetic driver is installed at the bottom of the vibrating screen. Heating elements are fixed to the inner wall of the drying chamber. A heating fan is installed on the side wall of the drying chamber, and the air outlet of the heating fan is located inside the drying chamber. An exhaust pipe is connected to the wall of the drying chamber, and a vacuum pump is installed at the end of the exhaust pipe away from the drying chamber. The drying chamber wall is equipped with a movable door.

[0015] The material conveying mechanism, acid-base adjustment component, modification component, material bonding mechanism, and material granulation mechanism are all installed on the support mechanism. The support mechanism includes a support frame, which is sequentially installed through multiple layers of fixed plates in a vertical direction. The other end of the fixed plate is fixed to the support plate. A first fixed base is fixedly connected to the support frame and the support plate. The material conveying mechanism, acid-base adjustment component, modification component, and material bonding mechanism are sequentially installed on the multiple layers of support plates from top to bottom. The material granulation mechanism is located below the bottommost support plate.

[0016] The beneficial effects of this utility model are:

[0017] This invention significantly shortens the preparation time of granular adsorbent materials, saves labor and space costs, and improves granulation efficiency through the application of a coal gasification slag granulation equipment system. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the coal gasification slag granulation equipment of this utility model;

[0019] Figure 2 This is a structural diagram of the acid-base reaction vessel of the coal gasification slag granulation equipment of this utility model;

[0020] Figure 3 This is a structural diagram of the modified component of the coal gasification slag granulation equipment of this utility model;

[0021] Figure 4 This is a structural diagram of the granulation component of the coal gasification slag granulation equipment of this utility model;

[0022] Figure 5 This utility model relates to a coal gasification slag granulation equipment. Figure 4 Enlarged view of section A in the middle;

[0023] Figure 6 This is a structural diagram of the drying component of the coal gasification slag granulation equipment of this utility model.

[0024] In the diagram: 1. Conveying mechanism; 101. Storage tank; 102. Weighing instrument; 103. Feeding pump; 104. Main conveying pipe; 105. Valve controller; 106. First conveying valve; 107. Second conveying valve; 108. First conveying branch pipe; 109. Second conveying branch pipe; 110. First vibrating motor; 2. Acid-base regulating assembly; 201. Acid storage tank; 202. First replenishment port; 203. Acid corrosion resistant pipeline; 204. Dosing pump; 205. Alkali corrosion resistant pipeline; 206. Corrosion resistant flow valve; 207. Alkali storage tank; 208. Second replenishment port; 209. 1. Acid-base reaction vessel; 210. Insulated metal outer shell; 211. Electric heating wire; 212. First drive motor; 213. Flow valve; 214. Water inlet pipe; 215. Water pump; 216. Water supply port; 217. Water storage tank; 218. First stirrer; 219. Temperature probe; 220. pH sensor; 221. First discharge pipe; 3. Modification component; 301. Waste liquid storage tank; 302. Drain pipe; 303. Acid and alkali corrosion resistant pipe; 304. Filter screen; 305. Second stirrer; 306. First pneumatic butterfly valve; 307. Second pneumatic butterfly valve; 308. PLC main unit 309. Control cabinet; 310. Modified reactor; 311. Second drive motor; 312. First dosing port; 313. Second vibration motor; 314. Second discharge pipe; 4. Material bonding mechanism; 405. Third pneumatic butterfly valve; 406. Second dosing port; 407. Third agitator; 408. Guide baffle; 409. Rotary atomizing nozzle; 400. Bonding reactor; 401. Third drive motor; 402. Molding pipe; 5. Material granulation mechanism; 501. Fourth drive motor; 502. Movable telescopic rod; 503. Fixed pusher; 504. Granulation pipe; 505. Fixed base; 5 06. Rotating blade; 507. Fixed rotating shaft; 508. Granulation mold; 509. Fifth drive motor; 510. Shaping sheet; 6. Material drying mechanism; 601. Conveyor belt; 602. Drive roller; 603. Drying box; 604. Vibrating net; 605. Vacuum pump; 606. Air extraction pipe; 607. Second fixed base; 608. Heating fan; 609. Electromagnetic driver; 610. Heating element; 611. Movable door; 7. Support mechanism; 701. Support frame; 702. Fixed plate; 703. Support plate; 704. First fixed base; 8. Material modification mechanism. Detailed Implementation

[0025] The following detailed description is provided in conjunction with specific implementation methods.

[0026] The coal gasification slag granulation equipment of this utility model, such as Figure 1 As shown, it includes a material conveying mechanism 1, a material modification mechanism 8, a material bonding mechanism 4, a material granulation mechanism 5, and a material drying mechanism 6 connected in sequence. The material modification mechanism 8 includes an acid-base adjustment component 2 and a modification component 3.

[0027] The material conveying mechanism 1 includes a storage tank 101. A weighing instrument 102 is installed at the bottom of the storage tank 101. A main conveying pipe 104 is connected to the wall of the storage tank 101. A feeding pump 103 is installed at the end of the main conveying pipe 104 near the storage tank 101. The end of the main conveying pipe 104 away from the storage tank 101 is divided into a first conveying branch pipe 108 and a second conveying branch pipe 109. The first conveying branch pipe 108 is connected to an acid-base adjustment component 2, and the second conveying branch pipe 109 is connected to a modification component 3. A first conveying valve 106 and a first vibration motor 110 are installed on the first conveying branch pipe 108, and a second conveying valve 107 and a second vibration motor 312 are installed on the second conveying branch pipe 109. Both the first conveying valve 106 and the second conveying valve 107 are connected to a valve controller 105.

[0028] Acid-base regulating assembly 2 includes an acid-base reaction vessel 209, which is equipped with a heat-insulating metal outer shell 210. A first conveying branch pipe 108 is connected to the inside of the acid-base reaction vessel 209. Figure 2 As shown, an electric heating wire 211 is installed on the outer wall of the acid-base reaction vessel 209. A temperature probe 219 and a pH sensor 220 are installed inside the acid-base reaction vessel 209. A first drive motor 212 is fixedly connected to the acid-base reaction vessel 209. A first stirrer 218 is installed at the output end of the first drive motor 212 and extends into the acid-base reaction vessel 209. The acid-base reaction vessel 209 is connected to an acid-resistant corrosion-resistant pipe 203 and an alkali-resistant corrosion-resistant pipe 205. A dosing pump 204 and a corrosion-resistant flow valve 206 are installed on both the acid-resistant corrosion-resistant pipe 203 and the alkali-resistant corrosion-resistant pipe 205. 3. The other end is connected to the acid storage tank 201, and the other end of the alkali corrosion resistant pipe 205 is connected to the alkali storage tank 207. The acid storage tank 201 is provided with a first replenishment port 202, and the alkali storage tank 207 is provided with a second replenishment port 208. The acid-base reaction vessel 209 is connected to a water inlet pipe 214. A water pump 215 and a flow valve 213 are installed on the water inlet pipe 214. The other end of the water inlet pipe 214 is connected to a water storage tank 217. The water storage tank 217 is provided with a water replenishment port 216. The output end of the acid-base reaction vessel 209 is equipped with a first discharge pipe 221, and the first discharge pipe 221 is connected to the modified component 3.

[0029] Modification component 3 includes a modification reactor 309, which is provided with a first dosing port 311 and a first discharge pipe 221 connected to the modification reactor 309. Figure 3As shown, the first discharge pipe 221 connects to the acid-base reaction vessel 209 and the modified reactor 309 via an acid-base corrosion-resistant pipe 303. A filter screen 304 is installed inside the acid-base corrosion-resistant pipe 303. The other end of the acid-base corrosion-resistant pipe 303 is connected to a waste liquid storage tank 301. A drain pipe 302 is connected to the lower end of the waste liquid storage tank 301. A first pneumatic butterfly valve 306 is installed between the acid-base reaction vessel 209 and the acid-base corrosion-resistant pipe 303 on the first discharge pipe 221. A second pneumatic butterfly valve 307 is installed between the acid and alkali corrosion resistant pipe 303 and the modified reactor 309. A second drive motor 310 is fixedly connected to the modified reactor 309. A second stirrer 305 is installed at the output end of the second drive motor 310. The second stirrer 305 extends into the modified reactor 309. A second conveying branch pipe 109 is connected to the modified reactor 309. A second discharge pipe 313 is connected to the output end of the modified reactor 309. The second discharge pipe 313 is connected to the material bonding mechanism 4.

[0030] The material bonding mechanism 4 includes a bonding reactor 406, a second discharge pipe 313 connected to the bonding reactor 406, a third pneumatic butterfly valve 401 installed on the second discharge pipe 313, a second dosing port 402 provided on the bonding reactor 406, a rotary atomizing nozzle 405 installed inside the bonding reactor 406, the input end of the rotary atomizing nozzle 405 connected to the second dosing port 402, a third drive motor 407 fixedly connected to the bonding reactor 406, a third stirrer 403 installed at the output end of the third drive motor 407, the third stirrer 403 extending into the bonding reactor 406, a guide baffle 404 provided on the side of the bonding reactor 406 away from the third drive motor 407, and a forming pipe 408 connected to the bottom of the bonding reactor 406 at the guide baffle 404.

[0031] The material granulation mechanism 5 includes a granulation tube 504, and a forming pipe 408 connected to the middle section of the granulation tube 504, such as... Figure 4 As shown, a coaxial fixed pusher 503 matching the inner diameter of the granulation tube 504 is provided inside the granulation tube 504. A movable telescopic rod 502 is fixedly connected to one side of the fixed pusher 503. A fourth drive motor 501 is installed at the other end of the movable telescopic rod 502, which passes through the end of the granulation tube 504. A granulation mold 508 is installed at the end of the granulation tube 504 away from the movable telescopic rod 502. A fixed seat 505 is installed at the end of the granulation tube 504 located at the granulation mold 508. Figure 5 As shown, a fixed base 505 is rotatably connected to a fixed rotating shaft 507. The fixed rotating shaft 507 is parallel to the axis of the granulation tube 504. A rotating blade 506 is fixedly connected to one end of the fixed rotating shaft 507 away from the granulation tube 504. A fifth drive motor 509 is connected to the other end of the fixed rotating shaft 507 away from the rotating blade 506.

[0032] The granulation mold 508 is tubular, with one end of the granulation mold 508 threadedly connected to the granulation tube 504, and the other end of the granulation mold 508 fixedly connected to a shaping sheet 510. The shaping sheet 510 has through holes, which are circular or honeycomb shaped.

[0033] The material drying mechanism 6 includes a conveyor belt 601 located below the outlet of the granulation mold 508. A second fixed base 607 is mounted on the conveyor belt 601. Drive rollers 602 are located at both ends of the lower conveyor belt 601. The output side of the conveyor belt 601 is located inside the drying chamber 603. Figure 6 As shown, a vibration net 604 is installed at the bottom of the drying oven 603, and an electromagnetic driver 609 is installed at the bottom of the vibration net 604. A heating element 610 is fixed to the inner wall of the drying oven 603. A heating fan 608 is installed on the side wall of the drying oven 603. The air outlet of the heating fan 608 is located inside the drying oven 603. An exhaust pipe 606 is connected to the wall of the drying oven 603. A vacuum pump 605 is installed at the end of the exhaust pipe 606 away from the drying oven 603. A movable door 611 is provided on the wall of the drying oven 603.

[0034] The material conveying mechanism 1, acid-base adjustment component 2, modification component 3, material bonding mechanism 4, and material granulation mechanism 5 are all installed on the support mechanism 7. The support mechanism 7 includes a support frame 701, which is sequentially installed through a multi-layer fixed plate 702 in a vertical direction. The other end of the fixed plate 702 is fixed to the support plate 703. A first fixed base 704 is fixedly connected to the bottom of both the support frame 701 and the support plate 703. The material conveying mechanism 1, acid-base adjustment component 2, modification component 3, and material bonding mechanism 4 are sequentially installed on the multi-layer support plate 703 from top to bottom. The material granulation mechanism 5 is located below the bottom support plate 703.

[0035] This embodiment also includes a programmable logic controller (PLC) main control cabinet 308, which is an existing PLC control cabinet located outside the device. The main control cabinet 308 is electrically connected to the electrical control components, and the circuit is an existing PLC control circuit to realize the automated control of the integrated device.

[0036] There are two working processes for this utility model:

[0037] The first method: During use, the weighing instrument 102 installed at the bottom of the storage tank 101 weighs the coal gasification slag powder. The valve controller 105 controls the first conveying valve 106 to open and the second conveying valve 107 to close. The feeding pump 103 pumps the powder from the main conveying pipe 104 through the first conveying branch pipe 108 into the acid-base reaction vessel 209. The first vibration motor 110 controls the uniform feeding and prevents the slag powder from sticking to the inner wall of the pipe through vibration. After feeding is completed, the electric heating wire 211 on the outer wall of the acid-base reaction vessel 209 is activated. The PLC controller collects the temperature data from the temperature probe 219 in real time and adjusts the power of the electric heating wire 211 to maintain the set constant temperature state for acid modification in the acid-base reaction vessel 209. After the constant temperature state is stable, the corrosion-resistant dosing pump 204 is turned on and pumps the acid solution in the acid storage tank 201. The corrosion-resistant flow valve 206 is opened, allowing the acid solution to enter the acid-base reaction vessel 209 through the acid corrosion-resistant pipe 203 and closes after reaching the set flow rate. The first drive motor 212 is turned on, driving the first stirrer 218 to start stirring, so that the material reacts fully with the acid solution. After the reaction is completed, the water pump 215 is turned on and the flow valve 213 is turned on, and clean water is delivered to the acid-base reaction vessel 209. Stirring continues to clean the remaining acid solution on the material. The first pneumatic butterfly valve 306 is turned on and the second pneumatic butterfly valve 307 is turned off. The cleaning waste liquid is delivered from the acid and alkali corrosion resistant pipeline 303 to the waste liquid storage tank 301. Solid particles are intercepted at the filter screen 304. The PLC controller coordinates the control of the water pump 215 and the pH sensor 220 on the side wall of the reaction vessel to monitor the pH data in real time. The cleaning steps are repeated until the pH value of the cleaning waste liquid stabilizes to neutral, and the acid modification process is completed.

[0038] Similarly, following the above steps, after the material is fed, the electric heating wire 211 on the outer wall of the acid-base reaction vessel 209 is activated. The PLC controller collects the temperature data from the temperature probe 219 in real time and adjusts the power of the electric heating wire 211 to maintain the set constant temperature state for alkali modification within the acid-base reaction vessel 209. After the constant temperature state stabilizes, the corrosion-resistant dosing pump 204 is turned on and pumps the alkali solution from the alkali storage tank 207. The corrosion-resistant flow valve 206 is opened, allowing the alkali solution to enter the acid-base reaction vessel 209 through the alkali-resistant corrosion-resistant pipe 205, and then closes after reaching the set flow rate. The modification stirring and cleaning steps are the same as those in the acid modification process, and the alkali modification process is complete.

[0039] The acid-base reaction vessel 209 can perform individual acid modification, individual base modification, and acid-base composite modification processes as needed.

[0040] After acid and alkali treatment, the second pneumatic butterfly valve 307 is opened, and the material enters the modified reactor 309 through the first discharge pipe 221. Modifier solution is added at the first dosing port 311, the second drive motor 310 is started, and the second stirrer 305 is driven to fully stir the material in the reactor. Stirring stops after the set time is reached.

[0041] After modification, the third pneumatic butterfly valve 401 opens, and the material enters the bonding reactor 406 through the second discharge pipe 313. A binder is added at the second dosing port 402, and the rotating atomizing nozzle 405 atomizes the binder and sprays it evenly onto the material. The third drive motor 407 starts, driving the third agitator 403 to begin stirring, ensuring thorough mixing of the material and binder. The evenly mixed material, axially transported by the horizontally positioned third agitator 403, reaches the guide baffle 404. Under the action of the forming pipe 408, it enters the granulation pipe 504. The fourth drive motor 501 on the movable telescopic rod 502 on the left side of the granulation pipe 504 starts, and the fixed pusher 503 at the right end of the movable telescopic rod 502 laterally extrudes the material, conveying it to the granulation mold 508 for extrusion molding. The rotating blade 506 on the fixed seat 505 at the top of the granulation pipe 504 starts, continuously cutting the extruded material at a set speed, closely adhering to the granulation mold, to obtain preliminarily shaped granules.

[0042] The initially formed material is collected by the lower conveyor belt 601 and, driven by the drive roller 602, enters the drying chamber 603, where it is placed on the bottom vibrating screen 604. The vibrating screen 604 is driven by an array of electromagnetic drivers 609 at its bottom, maintaining high-frequency micro-vibration to reduce material adhesion and ensure uniform heating. The heating elements 610 and heating fan 608 on the inner wall of the drying chamber are activated and maintain the required drying conditions, ultimately yielding qualified dried granular coal gasification slag adsorbent material, which can be removed through the movable door 611.

[0043] The second method: During use, the weighing instrument 102 installed at the bottom of the storage tank 101 weighs the coal gasification slag powder. The valve controller 105 controls the first conveying valve 106 to close and the second conveying valve 107 to open. The feeding pump 103 pumps the powder directly from the main conveying pipe 104 through the second conveying branch pipe 109 to the modified reactor 309 connected below. The second vibration motor 312 controls the uniform feeding and prevents the slag powder from sticking to the inner wall of the pipe. The modifier solution is added into the modified reactor 309 through the first dosing port 311. The second drive motor 310 starts, driving the second stirrer 305 to fully stir the material in the reactor. Stirring stops after the set time is reached. After the modification reaction is completed, the slag granulation-drying steps are continued according to the description of the first working process to obtain qualified granular coal gasification slag adsorbent material.

[0044] Example 1

[0045] The coal gasification slag granulation equipment of this utility model, such as Figure 1 As shown, it includes a material conveying mechanism 1, a material modification mechanism 8, a material bonding mechanism 4, a material granulation mechanism 5, and a material drying mechanism 6 connected in sequence. The material modification mechanism 8 includes an acid-base adjustment component 2 and a modification component 3.

[0046] This utility model, through the application of a coal gasification slag granulation equipment system, offers two main advantages: First, it improves processing efficiency and reduces process costs. In traditional processing methods, the conveying, modification, and granulation of slag require separate equipment, and materials are prone to residue, loss, or secondary pollution during transportation. The integrated device, through its closed pipelines and internal transmission structure, achieves one-stop material processing, significantly reducing transportation losses. It also eliminates the cost of manual coordination between different pieces of equipment, and the seamless connection between each stage avoids the wasted time of waiting for the next stage to start after the previous one ends, as is common in traditional processes. Second, it is easy to operate and facilitates large-scale application. The integrated device can uniformly adjust the parameters of each stage through a PLC control system, reducing manual intervention, lowering operational difficulty, and ensuring the stability of product quality.

[0047] Example 2

[0048] Based on Embodiment 1, the material conveying mechanism 1 of this utility model includes a storage tank 101, a weighing instrument 102 installed at the bottom of the storage tank 101, a material conveying main pipe 104 connected to the tank wall of the storage tank 101, a feeding pump 103 installed at the end of the material conveying main pipe 104 near the storage tank 101, and the end of the material conveying main pipe 104 away from the storage tank 101 is divided into a first material conveying branch pipe 108 and a second material conveying branch pipe 109. The first material conveying branch pipe 108 is connected to an acid-base adjustment component 2, and the second material conveying branch pipe 109 is connected to a modification component 3. The first material conveying branch pipe 108 is equipped with a first material conveying valve 106 and a first vibration motor 110, and the second material conveying branch pipe 109 is equipped with a second material conveying valve 107 and a second vibration motor 312. Both the first material conveying valve 106 and the second material conveying valve 107 are connected to a valve controller 105.

[0049] The material conveying mechanism 1 of this utility model, by installing a weighing instrument, can achieve two functions: first, to ensure the accuracy of the proportioning and improve the treatment effect of coal gasification slag. The material conveying mechanism 1 can monitor the amount of slag entering the system in real time through the weighing instrument 102, and achieve precise proportioning of materials and additives by combining preset process parameters; second, to enable data traceability. The weighing data can be uploaded to the control system in a synchronous manner to form a complete record of the processing volume, material characteristics, and reagent consumption, which is convenient for later analysis of the treatment effect of different batches of slag, optimization of proportioning parameters, and continuous improvement of resource utilization efficiency.

[0050] The valve controller 105 works in conjunction with the feed pump 103 to switch the material flow direction according to the composition of the slag. If the pH value of the weighed slag deviates from the neutral range, the control system can automatically trigger the valve to switch, so that the material first enters the acid-base adjustment component 2, and then enters the modification component 3 after the pH value reaches the standard, so as to avoid the extreme acidity or alkalinity from destroying the activity of the modifier. If the slag is stable, the slag can be directly controlled to enter the modification component 3 through the valve, eliminating the unnecessary acid-base adjustment step and shortening the processing time.

[0051] Example 3

[0052] Based on Embodiment 2, the acid-base regulating component 2 of this utility model includes an acid-base reaction vessel 209, with an insulated metal outer shell 210 installed outside the acid-base reaction vessel 209. A first conveying branch pipe 108 is connected to the inside of the acid-base reaction vessel 209. Figure 2 As shown, an electric heating wire 211 is installed on the outer wall of the acid-base reaction vessel 209. A temperature probe 219 and a pH sensor 220 are installed inside the acid-base reaction vessel 209. A first drive motor 212 is fixedly connected to the acid-base reaction vessel 209. A first stirrer 218 is installed at the output end of the first drive motor 212 and extends into the acid-base reaction vessel 209. The acid-base reaction vessel 209 is connected to an acid-resistant corrosion-resistant pipe 203 and an alkali-resistant corrosion-resistant pipe 205. A dosing pump 204 and a corrosion-resistant flow valve 206 are installed on both the acid-resistant corrosion-resistant pipe 203 and the alkali-resistant corrosion-resistant pipe 205. 3. The other end is connected to the acid storage tank 201, and the other end of the alkali corrosion resistant pipe 205 is connected to the alkali storage tank 207. The acid storage tank 201 is provided with a first replenishment port 202, and the alkali storage tank 207 is provided with a second replenishment port 208. The acid-base reaction vessel 209 is connected to a water inlet pipe 214. A water pump 215 and a flow valve 213 are installed on the water inlet pipe 214. The other end of the water inlet pipe 214 is connected to a water storage tank 217. The water storage tank 217 is provided with a water replenishment port 216. The output end of the acid-base reaction vessel 209 is equipped with a first discharge pipe 221, and the first discharge pipe 221 is connected to the modified component 3.

[0053] The acid-base adjustment component 2 of this invention offers two advantages: First, it enables precise and targeted acid-base adjustment. The pH fluctuation of coal gasification slag may exhibit bidirectional characteristics: some batches may be strongly acidic due to high sulfur content in the raw coal or the gasification process; others may be strongly alkaline due to alkaline ash content. Separate control of acid and alkali solutions allows for on-demand addition based on the initial pH value of the slag, avoiding the low adjustment efficiency or secondary pollution caused by mixing single reagents. Second, it avoids over-adjustment and reduces reagent waste. Traditional, crude adjustment with a single reagent is prone to over-neutralization due to estimation errors, requiring secondary addition of acid to correct the waste. Separate control, combined with a pH sensor 220, enables closed-loop control, precisely controlling reagent dosage and reducing acid-base costs.

[0054] The water replenishment device serves two purposes: First, it prevents cross-contamination of residual materials. After the acid-base regulating component 2 processes acidic slag, acidic substances may remain on its inner wall. If alkaline slag is processed immediately afterward, the residual acid will react with the subsequent alkaline solution, consuming reagents and generating salt precipitates that adhere to the inner wall of the equipment. Long-term accumulation can lead to sensor detection errors or pipe blockage. The water replenishment device can be activated for cleaning between batches, avoiding cross-contamination between different batches and ensuring the accuracy of the next adjustment. Second, it maintains the functional stability of the components. For the first agitator 218, cleaning prevents residual materials from drying and increasing operating resistance, reducing equipment wear and energy consumption. For the pH sensor 220 and temperature probe 219, cleaning prevents surface scaling and ensures detection accuracy. The water replenishment device can also replenish the water lost due to evaporation during the adjustment process, maintaining a stable solid-liquid ratio in the slag and preventing uneven mixing due to excessively dry materials.

[0055] Example 4

[0056] Based on Embodiment 3, the modified component 3 of this utility model includes a modified reactor 309, which is provided with a first dosing port 311 and a first discharge pipe 221 connected to the modified reactor 309. Figure 3 As shown, the first discharge pipe 221 connects to the acid-base reaction vessel 209 and the modified reactor 309 via an acid-base corrosion-resistant pipe 303. A filter screen 304 is installed inside the acid-base corrosion-resistant pipe 303. The other end of the acid-base corrosion-resistant pipe 303 is connected to a waste liquid storage tank 301. A drain pipe 302 is connected to the lower end of the waste liquid storage tank 301. A first pneumatic butterfly valve 306 is installed between the acid-base reaction vessel 209 and the acid-base corrosion-resistant pipe 303 on the first discharge pipe 221. A second pneumatic butterfly valve 307 is installed between the acid and alkali corrosion resistant pipe 303 and the modified reactor 309. A second drive motor 310 is fixedly connected to the modified reactor 309. A second stirrer 305 is installed at the output end of the second drive motor 310. The second stirrer 305 extends into the modified reactor 309. A second conveying branch pipe 109 is connected to the modified reactor 309. A second discharge pipe 313 is connected to the output end of the modified reactor 309. The second discharge pipe 313 is connected to the material bonding mechanism 4.

[0057] The modification component 3 of this utility model achieves solid-liquid separation through the cooperation of the first pneumatic butterfly valve 306, the second pneumatic butterfly valve 307, and the waste liquid storage tank 301. After acid and alkali adjustment, the coal gasification slag may form a "solid-liquid mixture" due to water replenishment, reagent dissolution, or the presence of free water in the slag itself. If it directly enters the modification reactor 309, the excessive waste liquid will dilute the modifier, requiring an increase in the dosage to achieve the expected effect, thus increasing costs. Furthermore, impurities in the waste liquid may react with the modifier, destroying the modification effect. After solid-liquid separation, the water content of the solid slag is reduced, which can reduce the dilution and chemical interference of the waste liquid on the modifier and ensure the effective concentration of the modifier and solid particles.

[0058] The second agitator 305 serves two purposes: First, it promotes uniform contact between the modifier and solid particles. Solid particles in coal gasification slag may have uneven particle sizes. If the modifier is added only by gravity or simple mixing, local enrichment is likely to occur, leading to inconsistent modification effects. The high-speed rotation of the second agitator 305 generates shearing and tumbling effects, fully dispersing the solid particles and ensuring that the modifier is evenly coated on the surface of each particle or penetrates into the particle pores, ensuring a thorough and consistent modification reaction. Second, it accelerates the modification reaction rate and shortens the processing time. Most modification processes require molecular diffusion. The second agitator 305 can reduce the aggregation resistance between particles, expand the solid-liquid contact area, accelerate the diffusion rate of the modifier to the particle surface, and improve the processing efficiency of the modification component. Combined with the continuous operation of the device, it can increase the overall production capacity.

[0059] Example 5

[0060] Based on Embodiment 4, the material bonding mechanism 4 of this utility model includes a bonding reactor 406, a second discharge pipe 313 connected to the bonding reactor 406, a third pneumatic butterfly valve 401 installed on the second discharge pipe 313, a second dosing port 402 provided on the bonding reactor 406, a rotary atomizing nozzle 405 installed inside the bonding reactor 406, the input end of the rotary atomizing nozzle 405 connected to the second dosing port 402, a third drive motor 407 fixedly connected to the bonding reactor 406, a third stirrer 403 installed at the output end of the third drive motor 407, the third stirrer 403 extending into the bonding reactor 406, a guide baffle 404 provided on the side of the bonding reactor 406 away from the third drive motor 407, and a forming pipe 408 connected to the bottom of the bonding reactor 406 at the guide baffle 404.

[0061] The material bonding mechanism 4 of this utility model, by setting a rotating atomizing nozzle 405, has two main advantages: First, it can improve the dispersion of the binder and reduce the amount used. If the binder is poured directly, it is easy to form local liquid accumulation due to poor fluidity, resulting in localized material stickiness due to excessive binder and insufficient particle strength in other areas due to insufficient binder. The rotating atomizing nozzle 405 disperses the binder, which can evenly cover the material surface, so that each slag particle can come into contact with an appropriate amount of binder. Second, it can adapt to binders in different states, enhancing the compatibility of the device. The binder may be liquid, paste, or low-viscosity suspension. The rotating atomizing nozzle 405 can adapt to different forms by adjusting the pressure. Compared with traditional direct feeding through pipelines, the rotating atomizing nozzle 405 can flexibly handle various types of binders, improving the adaptability of the device to different process requirements.

[0062] Example 6

[0063] Based on Embodiment 5, the material granulation mechanism 5 of this utility model includes a granulation tube 504, and a forming pipe 408 is connected to the middle section of the granulation tube 504, such as... Figure 4 As shown, a coaxial fixed pusher 503 matching the inner diameter of the granulation tube 504 is provided inside the granulation tube 504. A movable telescopic rod 502 is fixedly connected to one side of the fixed pusher 503. A fourth drive motor 501 is installed at the other end of the movable telescopic rod 502, which passes through the end of the granulation tube 504. A granulation mold 508 is installed at the end of the granulation tube 504 away from the movable telescopic rod 502. A fixed seat 505 is installed at the end of the granulation tube 504 located at the granulation mold 508. Figure 5 As shown, a fixed base 505 is rotatably connected to a fixed rotating shaft 507. The fixed rotating shaft 507 is parallel to the axis of the granulation tube 504. A rotating blade 506 is fixedly connected to one end of the fixed rotating shaft 507 away from the granulation tube 504. A fifth drive motor 509 is connected to the other end of the fixed rotating shaft 507 away from the rotating blade 506.

[0064] In the material granulation mechanism 5, the movable telescopic rod 502, the fixed pusher 503, and the granulation mold 508 ensure precise and controllable particle size through forced extrusion; the coaxial rotating blade 506 ensures the regularity of particle shape and production continuity through synchronous cutting, thereby improving the forming rate and particle consistency in the granulation process. This not only reduces the cost of subsequent drying and application, but also provides a stable intermediate product form for the resource utilization of coal gasification slag, further enhancing the practicality and economy of the entire device.

[0065] Example 7

[0066] Based on Embodiment Six, the granulation mold 508 of this utility model is tubular. One end of the granulation mold 508 is threaded to the granulation tube 504, and the other end of the granulation mold 508 is fixedly connected to a shaping sheet 510. The shaping sheet 510 is provided with through holes, which are circular or honeycomb-shaped.

[0067] The threaded connection allows the material granulation mechanism 5 to quickly change the granulation mold 508 according to the characteristics of the material being processed. If the size or shape of the granules needs to be adjusted, only the corresponding mold needs to be replaced, without modifying the entire granulation mechanism. Furthermore, since the granulation mold 508 is a consumable part, the detachable design of the threaded connection simplifies the cleaning, maintenance, or replacement process, reduces downtime, and lowers maintenance costs.

[0068] Example 8

[0069] Based on Embodiment 7, the material drying mechanism 6 of this utility model includes a conveyor belt 601 located below the outlet of the granulation mold 508. A second fixed base 607 is installed on the conveyor belt 601. Drive rollers 602 are provided at both ends of the lower conveyor belt 601. The output side of the conveyor belt 601 is located inside the drying chamber 603. Figure 6 As shown, a vibration net 604 is installed at the bottom of the drying oven 603, and an electromagnetic driver 609 is installed at the bottom of the vibration net 604. A heating element 610 is fixed to the inner wall of the drying oven 603. A heating fan 608 is installed on the side wall of the drying oven 603. The air outlet of the heating fan 608 is located inside the drying oven 603. An exhaust pipe 606 is connected to the wall of the drying oven 603. A vacuum pump 605 is installed at the end of the exhaust pipe 606 away from the drying oven 603. A movable door 611 is provided on the wall of the drying oven 603.

[0070] The conveyor belt 601 of the material drying mechanism 6 of this utility model is directly set below the outlet of the material granulation mechanism 5. After the wet granules are cut by the rotating blade 506, they can automatically fall onto the conveyor belt 601 and be continuously transported to the drying box 603 without manual intervention. This makes the granulation and drying processes form a seamless production line. Moreover, the speed of the conveyor belt 601 can be adjusted by the motor to ensure a stable amount of granules entering the drying box 603 and avoid the granules from being squeezed and clumped together due to excessive feeding at one time.

[0071] After entering the drying chamber 603, the wet particles fall onto the vibrating screen 604. The up-and-down vibration of the screen spreads the particles evenly, avoiding local accumulation. The particles tumble and change position continuously during the vibration, ensuring that the surface of each particle can fully contact the hot air.

[0072] Heating element 610 provides a heat source to stabilize the temperature inside drying oven 603. Heating fan 608 converts heat into directional hot air. When the hot air flows over the surface of the particles, it can quickly carry away the evaporated water vapor.

[0073] If the water vapor from the particles accumulates inside the drying chamber 603, it will cause the humidity inside the chamber to rise, forming a hot and humid cycle, which will prolong the drying time. The exhaust pipe 606, in conjunction with the vacuum pump 605, can expel the humid air from the drying chamber 603 in real time, ensuring continuous evaporation of moisture and further shortening the drying cycle.

[0074] Example 9

[0075] Based on Embodiment 8, the material conveying mechanism 1, acid-base adjustment component 2, modification component 3, material bonding mechanism 4, and material granulation mechanism 5 of this utility model are all installed on the support mechanism 7. The support mechanism 7 includes a support frame 701, which is sequentially inserted through a multi-layer fixing plate 702 in a vertical direction. The other end of the fixing plate 702 is fixedly connected to the support plate 703. A first fixed base 704 is fixedly connected to the bottom of both the support frame 701 and the support plate 703. The material conveying mechanism 1, acid-base adjustment component 2, modification component 3, and material bonding mechanism 4 are sequentially installed on the multi-layer support plate 703 from top to bottom. The material granulation mechanism 5 is located below the bottommost support plate 703.

[0076] The support mechanism 7 of this utility model has three main advantages: First, it utilizes gravity to assist material conveying, arranging the components from top to bottom to form a vertical material flow path, allowing materials to be naturally conveyed by gravity, reducing the use of additional conveying equipment and lowering energy consumption. Second, it achieves a multi-layered three-dimensional layout, significantly saving ground space. By utilizing vertical space, the equipment can be stacked and installed, ensuring the integrity of the production process while avoiding the waste of space caused by equipment dispersion. Third, it optimizes the continuity of the production process, facilitating operation and maintenance. The top-to-bottom arrangement conforms to the process flow, eliminating the need for long-distance lateral material conveying. Most material transfer can be directly carried out through short-distance chutes or pipelines, reducing material residue and loss.

Claims

1. A coal gasification slag granulation equipment, characterized in that, It includes a material conveying mechanism (1), a material modification mechanism (8), a material bonding mechanism (4), a material granulation mechanism (5), and a material drying mechanism (6) connected in sequence. The material modification mechanism (8) includes an acid-base adjustment component (2) and a modification component (3).

2. The coal gasification slag granulation equipment according to claim 1, characterized in that, The material conveying mechanism (1) includes a storage tank (101), a weighing instrument (102) is installed at the bottom of the storage tank (101), a material conveying main pipe (104) is connected to the tank wall of the storage tank (101), a feeding pump (103) is installed at one end of the material conveying main pipe (104) near the storage tank (101), and the end of the material conveying main pipe (104) away from the storage tank (101) is divided into a first material conveying branch pipe (108) and a second material conveying branch pipe (109). The first material conveying branch pipe (108) is connected to an acid-base adjustment component (2), and the second material conveying branch pipe (109) is connected to a modification component (3). The first material conveying branch pipe (108) is equipped with a first material conveying valve (106) and a first vibration motor (110), and the second material conveying branch pipe (109) is equipped with a second material conveying valve (107) and a second vibration motor (312).

3. The coal gasification slag granulation equipment according to claim 2, characterized in that, The acid-base regulating component (2) includes an acid-base reaction vessel (209), which is equipped with a heat-insulating metal shell (210). The first feed branch pipe (108) is connected to the inside of the acid-base reaction vessel (209). An electric heating wire (211) is installed on the outer wall of the acid-base reaction vessel (209). A temperature probe (219) and a pH sensor (220) are installed inside the acid-base reaction vessel (209). A first drive motor (212) is fixedly connected to the acid-base reaction vessel (209). A first stirrer (218) is installed at the output end of the first drive motor (212). The first stirrer (218) extends into the acid-base reaction vessel (209). The acid-base reaction vessel (209) is connected to an acid-corrosion resistant pipe (203) and an alkali-corrosion resistant pipe (205). Both the acid-corrosion resistant pipe (203) and the alkali-corrosion resistant pipe (205) are connected to each other. The acid-resistant pipeline (203) is connected to an acid storage tank (201) and an alkali-resistant pipeline (205) is connected to an alkali storage tank (207). The acid storage tank (201) is provided with a first replenishment port (202) and the alkali storage tank (207) is provided with a second replenishment port (208). The acid-alkali reaction vessel (209) is connected to a water inlet pipeline (214). A water pump (215) and a flow valve (213) are installed on the water inlet pipeline (214). The other end of the water inlet pipeline (214) is connected to a water storage tank (217). The water storage tank (217) is provided with a water replenishment port (216). The output end of the acid-alkali reaction vessel (209) is equipped with a first discharge pipe (221) and the first discharge pipe (221) is connected to the modification component (3).

4. The coal gasification slag granulation equipment according to claim 3, characterized in that, The modified component (3) includes a modified reactor (309), which is provided with a first dosing port (311). A first discharge pipe (221) is connected to the modified reactor (309). An acid- and alkali-resistant corrosion-resistant pipe (303) is connected between the acid- and alkali-reactive reactor (209) and the modified reactor (309) via the first discharge pipe (221). A filter screen (304) is installed inside the acid- and alkali-reactive pipe (303). The other end of the acid- and alkali-reactive pipe (303) is connected to a waste liquid storage tank (301). A drain pipe (302) is connected to the lower end of the waste liquid storage tank (301). The first discharge pipe (221) is connected between the acid- and alkali-reactive reactor (209) and the acid- and alkali-reactive pipe (304). A first pneumatic butterfly valve (306) is installed between the first discharge pipe (221) and the acid and alkali corrosion resistant pipe (303) and the modified reactor (309). A second pneumatic butterfly valve (307) is installed between the first discharge pipe (221) and the modified reactor (309). A second drive motor (310) is fixedly connected to the modified reactor (309). A second stirrer (305) is installed at the output end of the second drive motor (310). The second stirrer (305) extends into the modified reactor (309). A second conveying branch pipe (109) is connected to the modified reactor (309). The output end of the modified reactor (309) is connected to a second discharge pipe (313). The second discharge pipe (313) is connected to the material bonding mechanism (4).

5. The coal gasification slag granulation equipment according to claim 4, characterized in that, The material bonding mechanism (4) includes a bonding reactor (406), a second discharge pipe (313) connected to the bonding reactor (406), a third pneumatic butterfly valve (401) installed on the second discharge pipe (313), a second dosing port (402) provided on the bonding reactor (406), a rotary atomizing nozzle (405) installed inside the bonding reactor (406), the input end of the rotary atomizing nozzle (405) connected to the second dosing port (402), a third drive motor (407) fixedly connected to the bonding reactor (406), a third stirrer (403) installed at the output end of the third drive motor (407), the third stirrer (403) extending into the bonding reactor (406), a guide baffle (404) provided on the side of the bonding reactor (406) away from the third drive motor (407), and a forming pipe (408) connected at the bottom of the bonding reactor (406) at the guide baffle (404).

6. The coal gasification slag granulation equipment according to claim 5, characterized in that, The material granulation mechanism (5) includes a granulation tube (504), and the forming pipe (408) is connected to the middle section of the granulation tube (504). The granulation tube (504) is provided with a coaxial fixed pusher (503) that matches the inner diameter of the granulation tube (504). A movable telescopic rod (502) is fixedly connected to one side of the fixed pusher (503). A fourth drive motor (501) is installed at the other end of the movable telescopic rod (502) that passes through the end of the granulation tube (504). The granulation tube (504) is located away from the movable telescopic rod (502). One end of the tube is equipped with a granulation mold (508), and the granulation tube (504) is equipped with a fixed seat (505) at one end of the granulation mold (508). The fixed seat (505) is rotatably connected to a fixed shaft (507). The fixed shaft (507) is parallel to the axis of the granulation tube (504). A rotating blade (506) is fixedly connected to the end of the fixed shaft (507) away from the granulation tube (504). A fifth drive motor (509) is connected to the end of the fixed shaft (507) away from the rotating blade (506).

7. The coal gasification slag granulation equipment according to claim 6, characterized in that, The granulation mold (508) is tubular, with one end of the granulation mold (508) threaded to the granulation tube (504), and the other end of the granulation mold (508) fixed to a shaping sheet (510). The shaping sheet (510) has through holes, which are circular or honeycomb-shaped.

8. The coal gasification slag granulation equipment according to claim 7, characterized in that, The material drying mechanism (6) includes a conveyor belt (601) located below the outlet of the granulation mold (508). The two ends of the conveyor belt (601) are provided with drive rollers (602). The output side of the conveyor belt (601) is located inside the drying box (603). A vibration net (604) is installed at the bottom of the drying box (603). An electromagnetic driver (609) is installed at the bottom of the vibration net (604). A heating element (610) is fixed to the inner wall of the drying box (603). A heating fan (608) is installed on the side wall of the drying box (603). The air outlet of the heating fan (608) is located inside the drying box (603). An exhaust pipe (606) is connected to the wall of the drying box (603). A vacuum pump (605) is installed at the end of the exhaust pipe (606) away from the drying box (603). A movable door (611) is provided on the wall of the drying box (603).

9. The coal gasification slag granulation equipment according to claim 1, characterized in that, The feeding mechanism (1), acid-base adjustment component (2), modification component (3), material bonding mechanism (4), and material granulation mechanism (5) are all installed on the support mechanism (7). The support mechanism (7) includes a support frame (701). The support frame (701) is sequentially installed on the multi-layer fixing plate (702) in the vertical direction. The other end of the fixing plate (702) is fixed to the support plate (703). The support frame (701) and the support plate (703) are both fixed with a first fixed base (704). The feeding mechanism (1), acid-base adjustment component (2), modification component (3), and material bonding mechanism (4) are sequentially installed on the multi-layer support plate (703) from top to bottom. The material granulation mechanism (5) is located below the lowest support plate (703).

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