Hazardous waste recycling system

Abstract

The present invention relates to the field of hazardous waste treatment, and to a hazardous waste treatment system, and specifically to a hazardous waste recycling treatment system, including a liquid hazardous waste treatment subsystem and a solid inorganic hazardous waste treatment subsystem; the solid inorganic hazardous waste treatment subsystem includes a pre-sorting equipment group and a crushing equipment group; the liquid hazardous waste treatment subsystem is used to harmlessly treat the liquid hazardous waste from the pre-sorting equipment group and the crushing equipment group. The system simultaneously treats glass inorganic hazardous waste and liquid hazardous waste by setting up two treatment units, a liquid hazardous waste treatment subsystem and a solid inorganic hazardous waste treatment subsystem. This solution can be applied to the practical operation of treating hazardous wastes with complex components.

Description

Technical Field

[0001] The present invention relates to the field of hazardous waste treatment, to a hazardous waste treatment system, and in particular to a hazardous waste recycling treatment system. Background Art

[0002] The types and properties of hazardous wastes (hazardous wastes) generated by different production enterprises in the production process are quite different. If the hazardous wastes of different enterprises are collected and treated uniformly, there will be problems such as high transportation costs and difficulty in classifying and treating the mixed hazardous wastes. If we can implement a "one enterprise, one case" hazardous waste treatment strategy for major hazardous waste-producing enterprises, treat the hazardous wastes in situ, and then transfer the treated hazardous wastes to cement kilns and other collaborative treatment units, this will not only save high transportation costs, but also solve the problem of difficulty in classifying and treating hazardous wastes at cement kilns.

[0003] Hazardous waste can be divided into solid hazardous waste (including solid inorganic matter and solid organic matter), liquid hazardous waste and semi-solid hazardous waste according to their physical state. Different hazardous wastes have different physical and chemical properties and require different treatment measures. In addition, in the process of harmless treatment of one type of hazardous waste, another type of hazardous waste may be generated. For example, in the process of treating solid inorganic hazardous waste (medicine bottles), a certain amount of liquid hazardous waste will be generated due to a certain amount of medicine residue in the bottles. If you want to achieve 100% treatment and conversion of various types of hazardous waste, multiple hazardous waste treatment systems need to work together. Summary of the invention

[0004] The purpose of the present invention is to provide a hazardous waste recycling treatment system, which solves the technical problem that a single hazardous waste treatment system cannot coordinately treat multiple hazardous wastes by setting up two treatment units: a liquid hazardous waste treatment subsystem and a solid inorganic hazardous waste treatment subsystem.

[0005] To solve the above technical problems, the technical solution of the present invention is as follows:

[0006] A hazardous waste recycling treatment system includes a liquid hazardous waste treatment subsystem and a solid inorganic hazardous waste treatment subsystem; the solid inorganic hazardous waste treatment subsystem includes a pre-sorting equipment group and a crushing equipment group; the liquid hazardous waste treatment subsystem is used to harmlessly treat the liquid hazardous waste from the pre-sorting equipment group and the crushing equipment group.

[0007] Using the above technical solution, the technical principle and beneficial effects are as follows: during the treatment of glass bottles (solid inorganic hazardous waste), the waste liquid (liquid hazardous waste) in the glass bottles will pour out as the glass bottles are broken or the bottle caps fall off, causing pollution to the equipment and water sources. More specifically, the pre-sorting equipment group and the crushing equipment group screen and crush the solid inorganic hazardous waste (mainly glass bottles), respectively. Since the glass bottles contain liquid substances or soluble powders, liquid hazardous waste will be generated in the above two processes. This hazardous waste recycling treatment system, including a liquid hazardous waste treatment subsystem and a solid inorganic hazardous waste treatment subsystem, can treat solid inorganic hazardous wastes such as glass bottles while also simultaneously performing harmless treatment on liquid hazardous wastes.

[0008] Furthermore, it also includes a solid organic hazardous waste treatment subsystem.

[0009] By adopting the above technical scheme, a large amount of organic waste (such as packaging bags, etc.) will be generated during the treatment of solid inorganic hazardous waste. The establishment of a solid organic hazardous waste treatment subsystem can coordinate the treatment of the above organic hazardous waste, thereby ensuring the overall hazardous waste treatment conversion rate (converted into materials that can be co-treated by cement kilns).

[0010] Furthermore, it also includes a semi-solid hazardous waste treatment subsystem.

[0011] By adopting the above technical solution, after the liquid hazardous waste is harmlessly treated by the liquid hazardous waste treatment subsystem, the resulting finished product can be used as an acid-base adjustment reagent for the semi-solid hazardous waste treatment subsystem. In addition, during the solid-liquid separation process of the semi-solid hazardous waste treatment subsystem, a large amount of liquid hazardous waste will be generated. The liquid hazardous waste treatment subsystem can work in synergy with the semi-solid hazardous waste treatment subsystem to treat both liquid hazardous waste and semi-solid hazardous waste at the same time.

[0012] Enterprises will generate a large number of different types of hazardous wastes during the production process. Hazardous wastes can be divided into solid hazardous wastes (including solid inorganic matter and solid organic matter), liquid hazardous wastes and semi-solid hazardous wastes according to their physical state. Different hazardous wastes have different physical and chemical properties and require different treatment measures. The liquid hazardous waste treatment subsystem, solid inorganic hazardous waste treatment subsystem, solid organic hazardous waste treatment subsystem and semi-solid hazardous waste treatment subsystem work together to select appropriate production lines according to different types of hazardous wastes, which can achieve complete transformation of hazardous wastes generated by production enterprises.

[0013] Furthermore, the pre-sorting equipment group includes a sorting table and an injection bottle crusher; the sorting table includes a bottle washing pool and workbenches located on both sides of the bottle washing pool; manual sorting positions and collection baskets are provided on both sides of the workbench, and the collection baskets include a glass collection basket and a packaging collection basket.

[0014] By adopting the above technical scheme, manual screening or crushing by a crusher can be selected according to the size and type of the glass bottles. The injection bottle crusher is used to directly crush injection glass bottles. Injection glass bottles are small glass bottles containing powdered or liquid drugs (for example: small bottles containing penicillin powder), which are difficult to open manually. This type of glass bottle can be directly crushed by the injection bottle crusher. The sorting table is used to manually sort non-injection glass bottles, and the workers stand at the manual sorting position. The workers unscrew the bottle caps of the glass bottles and put them into the packaging collection basket, and also remove the packaging of the glass bottles and put them into the packaging collection basket; the workers need to put the non-injection glass bottles into the bottle washing pool for cleaning, and smash the non-injection glass bottles, and then put them into the glass collection basket.

[0015] Furthermore, the crushing equipment group includes a turning machine, a vibrating feeder, a primary crusher, a secondary crusher, a drain screw conveyor and a vibrating screen in sequence according to the direction of material movement; the drain screw conveyor is used to separate liquid hazardous waste from solid materials; the vibrating screen is used to separate bottle caps and broken glass.

[0016] The above technical solution can realize feeding, crushing, solid-liquid separation, and separation of bottle caps and broken glass.

[0017] Furthermore, the drainage screw conveyor includes a conveying cylinder, which forms an angle with the horizontal plane, and the bottom end of the conveying cylinder is connected to a vertically arranged waste liquid pipe, and a second waste liquid barrel is placed below the waste liquid pipe; the mesh aperture of the vibrating screening machine is 8 mm.

[0018] By adopting the above technical solution, the drain screw conveyor can separate the liquid hazardous waste from the broken glass, collect the liquid hazardous waste, and transport the collected liquid hazardous waste to the liquid hazardous waste treatment subsystem for harmless treatment. The particle size of the broken glass formed by two-stage crushing is less than 8mm, while the diameter of the bottle cap is usually more than 10mm. Setting the aperture of the screen to 8mm can achieve the separation of the bottle cap and the broken glass.

[0019] Furthermore, the primary crusher and the secondary crusher are both hammer crushers, and the secondary crusher is used to obtain glass particles with a particle size less than 8 mm.

[0020] By adopting the above technical solution, the hammer crusher only breaks the glass bottle, while the bottle cap will not be broken. The bottle cap and the broken glass are separated by this method.

[0021] Furthermore, the liquid hazardous waste treatment subsystem includes a raw material tank, a reaction kettle and a finished product tank which are connected in sequence. The finished product tank is used to store liquid hazardous waste products with a particle size less than 2 mm, a pH value between 6-9 and a flash point greater than 60°C.

[0022] By adopting the above technical scheme, the material (liquid hazardous waste) is temporarily stored in the raw material tank and the material in the raw material tank is transported to the reactor, so that the harmless treatment of the liquid hazardous waste can be achieved. After the treatment is completed, the finished product is placed in the finished product tank for the next step of processing.

[0023] Furthermore, the solid organic hazardous waste treatment subsystem includes a first screening unit, a crushing unit and a second screening unit in sequence along the material movement direction. The crushing unit includes a crusher for crushing the solid organic hazardous waste into particles with a diameter less than 150 mm. The crusher is provided with a crushing chamber. The side wall of the crushing chamber is connected to a drainage duct, and a safety blasting membrane is fixed to the end of the drainage duct away from the crushing chamber.

[0024] By adopting the above technical scheme, solid organic hazardous waste can become solid organic hazardous waste finished products after screening treatment in the first screening unit, crushing treatment in the crushing unit and re-screening treatment in the second screening unit, which can be used by downstream enterprises (for example, as fuel for cement plants) to achieve comprehensive utilization of resources. The solid organic hazardous waste after impurities removal is crushed in the crushing unit. Since some flammable and explosive impurities may not be fully removed and there is a lot of dust in the crushing chamber, combustion or explosion is likely to occur in the crushing chamber. When combustion or explosion occurs, the air pressure in the crushing chamber expands rapidly. The safety explosion membrane is set on the crushing chamber to achieve a rapid pressure relief function to avoid damage to the crusher caused by excessive internal pressure. The side wall of the crushing chamber is connected to a drainage duct to guide the gas and guide excess gas to the outside of the crushing chamber. The safety explosion membrane is not directly installed on the side wall of the crushing chamber, but is installed at the end of the drainage duct away from the crushing chamber to prevent the material in the crushing chamber from squeezing and scratching the safety explosion membrane during movement, thereby reducing the wear on the safety explosion membrane.

[0025] The product with a particle size of less than 150mm obtained after the crushing treatment can be fully burned at the kiln head of the cement kiln to avoid the situation where the organic matter is not fully burned to produce toxic and harmful gases such as dioxins. When the product is placed at the kiln head of the cement kiln, the particle size of less than 150mm can ensure that the solid organic hazardous waste finished product is fully burned within a certain period of time (the finished product stays in the high temperature section of the kiln head for about 15 minutes) to form gas that meets the emission standards. The treated solid organic hazardous waste can also be used as fuel to provide heat for the cement kiln.

[0026] In this scheme, the first screening unit, the crushing unit and the second screening unit are used to sequentially treat the solid organic hazardous waste, and the hazardous waste is treated into a finished product with uniform particle size. After multiple screening treatments, the finished product contains only organic matter, which can ensure the stability and uniformity of the physical and chemical properties of the solid organic finished product. It can be used as a standardized product (stable fuel value batch) and burned at the kiln head of the cement kiln. The existing technology often treats hazardous waste by simple classification and then burns it. However, the direct combustion of solid organic hazardous waste after simple classification will lead to incomplete combustion of hazardous waste and produce a large amount of harmful gases. In addition, the part of hazardous waste with recycling value is not comprehensively utilized (can be used as fuel), and the simple classification and unified combustion treatment may not completely remove the harmful substances. The combustion of harmful substances often brings more serious environmental pollution. This scheme adopts a more advanced hazardous waste treatment concept, which treats the hazardous waste harmlessly and treats it into a standardized product. The standardized product has properties such as stable fuel value. When the standardized product is burned, the relationship between the amount of the standardized product and the energy generated by its combustion can be accurately known.

[0027] Furthermore, the semi-solid hazardous waste treatment system includes a pre-sorting mechanism, a temporary storage mechanism, and a mixing mechanism connected in sequence, and also includes an impurity recovery mechanism connected to the pre-sorting mechanism and the mixing mechanism; the pre-sorting mechanism includes a feeding trough, a chain crusher, a sorting trough, a vibrating screen and an intermediate trough for sorting finished products connected in sequence; the front ends of the chain crusher and the sorting trough are connected to a screen with an aperture of 100 mm, and the screen, vibrating screen, mixing vibrating screen, and mixing iron remover are all connected to the impurity recovery mechanism.

[0028] By adopting the above technical scheme, the semi-solid hazardous waste is pre-sorted by a pre-sorting mechanism, the compacted sludge is crushed by a chain crusher to expose impurities, and further sorting is carried out by a sorting tank to select larger sludge blocks and impurities, and then further screening is carried out by a vibrating screen to separate impurities of different mass sizes. In this way, various impurities are separated through multi-layer screening to obtain semi-solid hazardous waste products with uniform particle size. After the sorted finished products are centrally packaged in the intermediate tank, they are sent to a temporary storage mechanism for unified storage for subsequent use. The screened semi-solid hazardous waste is mixed with other products by a mixing mechanism, and the impurities are separated again and homogenized to obtain a product with uniform texture that can be suitable for reuse, thereby achieving effective sorting and treatment of semi-solid hazardous waste and improving the reuse rate of semi-solid hazardous waste to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a top view of the pre-sorting equipment group of Example 1 of the present invention.

[0030] Figure 2This is a front view of the crushing equipment group according to Example 1 of the present invention.

[0031] Figure 3 This is a schematic diagram of a liquid hazardous waste treatment subsystem according to Example 1 of the present invention.

[0032] Figure 4 It is a front view of the cleaning structure of embodiment 2 of the present invention.

[0033] Figure 5 This is a top view of the cleaning cylinder cover of embodiment 2 of the present invention.

[0034] Figure 6 It is a longitudinal cross-sectional view of the cleaning structure of embodiment 2 of the present invention.

[0035] Figure 7 It is a top view of the screening drum of Example 2 of the present invention.

[0036] Figure 8 It is a front view of the screening drum of embodiment 2 of the present invention.

[0037] Fig. 9 This is a schematic diagram of a solid organic hazardous waste treatment subsystem according to Example 1 of the present invention.

[0038] Fig.10 This is a schematic diagram of the crushing chamber of the solid organic hazardous waste treatment subsystem of Example 1 of the present invention.

[0039] Fig.11 for Fig.10 A longitudinal sectional view of section H.

[0040] Fig.12 It is a longitudinal cross-sectional view of the cleaning structure and drainage duct of Example 3 of the present invention.

[0041] Fig.13 This is a flow chart of the semi-solid hazardous waste treatment subsystem of Example 1 of the present invention.

[0042] Fig.14 This is a front view of the mixing mechanism of the semi-solid hazardous waste treatment subsystem of Example 1 of the present invention.

[0043] Fig.15 This is a front view of the pre-sorting mechanism of the semi-solid hazardous waste treatment subsystem of Example 1 of the present invention.

[0044] Fig.16 This is a front view of the regulating valve in Example 4 of the present invention.

[0045] Fig.17 for Fig.16 Enlarged view of section A1 in the middle.

[0046] Fig.18It is a side view of the state of the regulating valve connecting pipeline in embodiment 4 of the present invention.

[0047] Fig.19 for Fig.18 Enlarged view of section A2 in the middle. DETAILED DESCRIPTION

[0048] The following is further described in detail through specific implementation methods:

[0049] The reference numerals in the drawings of the specification include: sorting table 1, workbench 2, bottle washing pool 3, injection bottle crusher 4, first glass collection basket 5, second glass collection basket 6, first packaging collection basket 7, second packaging collection basket 8, manual sorting position 9, turning machine 10, silo 11, soft connection 12, vibrating feeder 13, primary crusher 14, secondary crusher 15, drain screw conveyor 16, second waste liquid barrel 17, vibrating screening machine 18, first loading basket 19, second loading basket 20, platform scale 21, raw material tank 22 , reaction kettle 23, finished product tank 24, cleaning cylinder 25, cleaning cylinder cover 26, water outlet pipe 27, frame 28, outer cover 29, inner cover 30, screening cylinder side wall 31, protective cylinder 32, threaded column 33, screen part 34, middle part 35, protective cylinder hole 36, floor 37, slider 38, slideway 39, spring 40, stirring paddle 41, threaded hole 42, insertion groove 43, screening cylinder door 44, crushing chamber 45, nitrogen delivery pipe 46, drainage pipe 47, fixed flange 48, disassembly flange 49, safety bursting membrane 50 , pipe cover 51, connecting rod 52, cleaning ring 53, spiral wire 54, limit block 55, nut 56, semi-solid unit turning machine 57, screw conveyor 58, mixer 59, mixing vibrating screen 60, semi-solid unit vibrating feeder 61, roller conveyor 62, mixing intermediate trough 63, iron remover 64, screw pump 65, feeding trough 66, chain crusher 67, sorting trough 68, vibrating screen 69, sorting finished product intermediate trough 70, storage tank 71, waste liquid storage tank 72, pipeline 73, fixing ring 74, adjustment ring 75. flushing hole 76. support seat 77. telescopic rod 78. cleaning block 79. first screening unit A. crushing unit B. nitrogen making unit C. second screening unit D. transmission unit E. first belt conveyor A1. second belt conveyor A2. first magnetic separator A3. metal detector A4. material pit B1. grab crane B2. crusher B3. third belt conveyor D1. second magnetic separator D2. fourth belt conveyor E1. compressor P. solid organic hazardous waste finished product F. hazardous waste to be screened and crushed R1. qualified hazardous waste R2.

[0050] Example 1

[0051] Enterprises will generate a large number of different types of hazardous wastes during the production process. Hazardous wastes can be divided into solid hazardous wastes (including solid inorganic matter and solid organic matter), liquid hazardous wastes and semi-solid hazardous wastes according to their physical state. Different hazardous wastes have different physical and chemical properties and require different treatment measures. If you want to achieve 100% treatment and conversion of various types of hazardous wastes, multiple hazardous waste treatment systems are required to work together. The hazardous waste recycling treatment system consists of four parts: liquid hazardous waste treatment subsystem, solid inorganic hazardous waste treatment subsystem, solid organic hazardous waste treatment subsystem and semi-solid hazardous waste treatment subsystem. Hazardous waste production enterprises often generate a variety of hazardous wastes during the production process, including liquid hazardous waste, solid inorganic hazardous waste, solid organic hazardous waste and semi-solid hazardous waste. Specific treatment equipment is required to coordinate the treatment of the above four types of hazardous wastes. The following is a detailed description of each treatment unit:

[0052] 1. Solid Inorganic Hazardous Waste Treatment Subsystem

[0053] The solid inorganic hazardous waste treatment subsystem includes a pre-sorting equipment group and a crushing equipment group. Solid inorganic hazardous wastes such as glass bottles are first screened in the pre-sorting equipment group and then crushed in the crushing equipment group. Liquid hazardous wastes will be generated during the operation of the pre-sorting equipment group and the crushing equipment group, and the liquid hazardous wastes will be transported to the liquid hazardous waste treatment subsystem for harmless treatment. In this embodiment, solid inorganic hazardous wastes are hazardous wastes included in HW02, HW03 and HW49 in the "National List of Hazardous Wastes". More specifically, solid inorganic hazardous wastes are mainly: glass bottles and glass containers contaminated with HW02 medical waste, HW03 waste drugs, waste medicines, etc. (the raw material components are mainly solid inorganic substances in glass bottles, generally non-combustible). Solid inorganic hazardous wastes include small (≤50ml) glass bottles and medicines and reagents that cannot be separated from the bottles. The drugs and reagents separated by the method include powders (penicillin, streptomycin, phenobarbital sodium, trypsin, α-chymotrypsin, protease, coenzyme A, etc.), granules (tablets and capsules, cold medicines, antiallergic medicines, expectorants and cough suppressants, analgesics, digestive medicines, vitamins, antibiotics, etc.) and liquids (glucose and sodium chloride injection, concentrated sodium chloride injection, arginine injection, terbutaline sulfate injection, levofloxacin lactate injection, ambroxol hydrochloride injection, potassium chloride injection, heparin sodium injection, glucose injection, dexamethasone sodium phosphate injection, adenosine triphosphate injection, cimetidine injection, fluconazole injection, tylosin injection, norvancomycin injection, vitamin C injection, vitamin B6 injection, furosemide injection, etc.). Solid inorganic hazardous waste also includes large (≤5L and >50ml) and extra-large (>5L) special-shaped glass bottles, which have been used to hold various laboratory medicines, industrial acids and alkalis (sulfuric acid, hydrochloric acid, sodium hydroxide), etc.

[0054] The specific details of each part of the solid inorganic hazardous waste treatment subsystem are as follows:

[0055] like Figure 1 The pre-sorting equipment group shown is set in an independent workshop (screening workshop), including a sorting table 1 and an injection bottle crusher 4 (PC, hammer crusher). The injection bottle crusher 4 is used to directly crush the injection glass bottles. The injection glass bottles are small glass bottles (small glass bottles) containing powdered or liquid drugs. They are difficult to open manually. This type of glass bottle can be directly crushed by the injection bottle crusher 4. The crushed injection glass bottles are washed manually to remove the powder and liquid in the bottle. The waste liquid obtained by washing is collected and placed in the third waste liquid barrel (not shown in the figure). The waste liquid in the third waste liquid barrel is liquid hazardous waste. The third waste liquid barrel is transported to the liquid hazardous waste treatment subsystem by a forklift for harmless treatment. The washed and crushed injection glass bottles are placed in a small glass bottle box (not shown in the figure) and then transported to the vertical warehouse for temporary storage by a forklift. The sorting table 1 is used to manually sort non-injection glass bottles (large glass bottles and extra-large glass bottles). The sorting table 1 includes a bottle washing pool 3 and a workbench 2 located on both sides of the bottle washing pool 3. The first glass collection basket 5 and the second glass collection basket 6 (collectively referred to as glass collection baskets), as well as the first packaging collection basket 7 and the second packaging collection basket 8 (collectively referred to as packaging collection baskets) are placed at both ends of the sorting table 1. The glass collection basket and the packaging collection basket are collectively referred to as a collection frame. Figure 1 As shown, each workbench 2 is provided with a manual sorting position 9 on both sides. Workers stand on the manual sorting position 9 to manually screen non-injection glass bottles. The specific operation is as follows: the worker unscrews the bottle cap of the glass bottle and puts it into the first packaging collection basket 7 or the second packaging collection basket 8, and also removes the packaging of the glass bottle and puts it into the first packaging collection basket 7 or the second packaging collection basket 8; the worker needs to put the non-injection glass bottles into the bottle washing pool 3 for cleaning (a faucet commonly used in the prior art is provided above the bottle washing pool 3), and smash the non-injection glass bottles, and then put them into the first glass collection basket 5 or the second glass collection basket 6. The small glass bottle box, the first glass collection basket 5 or the second glass collection basket 6 are all used to hold the glass to be broken, and are all transported to the vertical warehouse for temporary storage by forklift. The bottom of the bottle washing pool 3 is connected to a water outlet pipe, and a first waste liquid barrel (not shown in the figure) is placed below the water outlet pipe. The first waste liquid barrel is used to hold the water (i.e., liquid hazardous waste) flowing out of the bottle washing pool 3. The first waste liquid barrel is transported by a forklift to the liquid hazardous waste treatment subsystem for harmless treatment.

[0056] The crushing equipment group is located in a three-story factory building (crushing workshop), such as Figure 2As shown, a silo 11 is fixed to the ceiling of the third floor of the crushing workshop by screws, and the silo 11 is inserted into the ceiling. A turning machine 10 for feeding materials to the silo 11 is arranged above the silo 11, and the turning machine 10 is fixed to the roof by screws. While the turning machine 10 adds water to the silo 11, water is also added to the silo 11 to prevent some medicines from crystallizing during the crushing process (the bottles often contain chemicals such as medicines, and crystallization will clog the pipeline). When the crushing operation is performed, materials are sent to the silo 11 by the turning machine 10 (the materials come from the vertical warehouse, and can be crushed injection glass bottles from small glass bottle boxes, or manually broken non-injection glass bottles from the first glass collection basket 5 and / or the second glass collection basket 6). The lower part of the silo 11 is connected to the feeding port of the vibrating feeder 13 (fixed on the ground of the third floor by screws) through a soft connection 12 (soft pipe), the discharging port of the vibrating feeder 13 (XFZ) is connected to the feeding port of the primary crusher 14 (fixed on the ground of the third floor by screws), the discharging port of the primary crusher 14 (PC, hammer crusher) is connected to the feeding port of the secondary crusher 15 (fixed on the ground of the second floor by screws) through a pipe (the pipe passes through the ground of the third floor), the discharging port of the secondary crusher 15 (PFL, hammer crusher) is connected to the drain screw conveyor 16 (the drain screw conveyor 16 is fixed on the frame) through a pipe (the pipe passes through the ground of the second floor), and the frame Figure 2The drain screw conveyor 16 (WLS) includes a conveying cylinder, and the angle between the conveying cylinder and the horizontal plane is 10°. The conveying cylinder of the drain screw conveyor 16 is provided with spiral blades, and the spiral blades drive the solid matter to be transported to the higher end of the conveying cylinder, and at the same time, the liquid matter flows to the lower end of the conveying cylinder. The left end of the conveying cylinder is connected to a vertically arranged waste liquid pipe, and a second waste liquid barrel 17 is placed at the lower end of the waste liquid pipe. The liquid collected in the second waste liquid barrel 17 is also liquid hazardous waste, which will be transported by a forklift to the liquid hazardous waste treatment subsystem for harmless treatment. The right end of the conveying cylinder is connected to a vertically arranged discharge pipe, and the discharge pipe is connected to a vibrating screening machine 18 (XFZ), and the vibrating screening machine 18 is also fixed on the frame. The vibration screening machine 18 is provided with an outlet for the material on the sieve and an outlet for the material under the sieve. A first basket 19 (which can be placed on the frame) is placed directly below the outlet for the material under the sieve. A second basket 20 is placed directly below the outlet for the material on the sieve. The second basket 20 is placed on a platform scale 21 (PFA220-ES3000) which is fixed on the ground of the first floor. The first basket 19 is used to hold the material on the sieve such as bottle caps, and the second basket 20 is used to hold the material under the sieve such as broken glass. Since both the primary crusher 14 and the secondary crusher 15 are hammer crushers, they can effectively break the glass, while the bottle caps are usually rubber products, plastic products or metal products. It is difficult for the hammer crusher to break the bottle caps. The broken glass and the bottle caps can have a difference in particle size. The broken glass and the bottle caps can be separated by the vibration screening machine 18 (whose mesh aperture is 8mm). The particle size of broken glass is below 8mm, while the diameter of bottle caps is generally above 10mm, so bottle caps and other materials are sieve-surface materials, and broken glass is sieve-underface materials. The broken glass in the second holding basket 20 is transported to the vertical warehouse by a forklift for temporary storage. After being weighed and packaged, the broken glass is a solid inorganic hazardous waste product (particle size ≤8mm, water content ≤5%, impurity rate ≤5%, impurities refer to plastics and metals, etc.), which can be used as a raw material for cement production in cement plants. The materials in the first holding basket 19 are also transported to the vertical warehouse by a forklift for temporary storage, because the first holding basket 19 is used to hold sieve-surface materials such as bottle caps. The sieve-surface materials are mainly bottle caps, which may contain or be accompanied by some broken glass with larger particle sizes (this part cannot become sieve-underface materials). The materials in the first holding basket 19 need to be crushed again to ensure that the particle size of the glass hazardous waste meets the requirements, and then screened into sieve-underface materials, which are completely recycled and utilized. In the process of treating solid inorganic hazardous waste, a large amount of waste packaging will be generated, which can be transported to the solid organic hazardous waste treatment subsystem for treatment as solid organic hazardous waste.

[0057] 2. Liquid Hazardous Waste Treatment Subsystem

[0058] Liquid hazardous waste treatment subsystem (such as Figure 3The method comprises a raw material tank 22, a reactor 23 and a finished product tank 24 which are arranged in sequence according to the direction of material flow. Liquid hazardous waste (from the first waste liquid barrel and / or the second waste liquid barrel 17 and / or the third waste liquid barrel, or liquid hazardous waste from other sources) is temporarily stored in the raw material tank 22 through a pump in the prior art. When the liquid hazardous waste needs to be harmlessly treated, the liquid hazardous waste in the raw material tank 22 is input into the reactor 23 through a pipeline. After a specific chemical reaction, harmless liquid hazardous waste is obtained. The harmless liquid hazardous waste is transported to the finished product tank 24 through a pipeline for storage. The finished product tank 24 stores the liquid hazardous waste product. The raw material tank 22 is connected to the reactor 23 through a pipeline, and the reactor 23 is connected to the finished product tank 24 through a pipeline. The finished product tank 24 stores the liquid hazardous waste product obtained by treating the liquid hazardous waste in the reactor 23. The particle size of the liquid hazardous waste product is less than 2 mm, the pH value is between 6-9, and the flash point is greater than 60°C.

[0059] 3. Solid organic hazardous waste treatment subsystem

[0060] like Fig. 9 As shown in the figure (the solid line with arrows in the figure indicates the direction of transportation of solid organic hazardous waste), the solid organic hazardous waste treatment subsystem includes a first screening unit A, a crushing unit B, a nitrogen production unit C, a second screening unit D and a conveying unit E. The first screening unit A, the crushing unit B and the second screening unit D are arranged in sequence along the direction of material movement. The nitrogen production unit C is used to transport nitrogen to the crushing unit B. After the solid organic hazardous waste is recycled (from upstream enterprises, generated in their production process), the solid organic hazardous waste is divided into hazardous waste to be screened and crushed R1 and qualified hazardous waste R2 after physical and chemical property testing. Among them, solid organic hazardous waste mainly includes lightweight materials such as various textures of clothing, woven fabrics, cotton gloves, rubber gloves, PP / PE / HEPE / LDPE / PVC barrels, fiber filter cloths, packaging materials, etc. contaminated with a small amount of hazardous items. These solid hazardous wastes collected from waste-producing enterprises often contain metal substances, and mixed loading is relatively common. Common hazardous substances contaminated by solid organic hazardous waste mainly include mineral oil, solvents, dyes, coatings, paints, inorganic acids, etc. These solid organic hazardous wastes are mainly HW06, HW12 and HW49 in the "National List of Hazardous Wastes", which are flammable (a small amount has the possibility of spontaneous combustion) and have certain volatility. In addition, there are two criteria for judging qualified hazardous waste R2: (1) all solid organic matter; (2) particle size is less than 150mm. Solid organic hazardous wastes that do not meet the above-mentioned standards for qualified hazardous waste R2 are classified as hazardous wastes to be screened and crushed R1. Qualified hazardous waste R2 can be directly compressed and packed to obtain the solid organic hazardous waste finished product F; while the hazardous waste R1 to be screened and crushed needs to go through the process of screening and crushing to obtain the solid organic hazardous waste finished product F. The equipment settings for the harmless treatment of hazardous waste R1 to be screened and crushed are as follows:

[0061] The first screening unit A includes a manual sorting position (not shown), a first belt conveyor A1, a second belt conveyor A2, a first magnetic separator A3 (RCYD) and a metal detector A4 (IMD-I). The second belt conveyor A2 is located at the end of the first belt conveyor A1, and the height of the second belt conveyor A2 is lower than that of the first belt conveyor A1. The first magnetic separator A3 and the metal detector A4 are both fixed above the first belt conveyor A1 (the first magnetic separator A3 and the metal detector A4 are both fixed by a frame), and the manual sorting position is set on both sides of the first belt conveyor A1. The manual sorting position, the first magnetic separator A3 and the metal detector A4 are arranged in sequence along the direction in which the material is conveyed on the first belt conveyor A1 (the direction in which the material moves). After the material (hazardous waste to be screened and crushed R1) is sorted on the first belt conveyor A1, it becomes screened solid organic hazardous waste, and then the screened solid organic hazardous waste is transported to the second belt conveyor A2 for further transportation.

[0062] The crushing unit B includes a material pit B1 and a crusher B3 which are arranged in sequence along the direction of material movement. The second belt conveyor A2 transports the material (i.e., solid organic waste after screening) to the material pit B1 for temporary storage, and the grab crane B2 grabs the material in the material pit B1 and puts the material into the crusher B3 (Q100HD, SSI, shearing crusher). After the crusher B3 completes the crushing of the solid organic waste after screening, crushed material is obtained. In order to increase the safety of the crushing unit B and prevent the material from burning and exploding in the crusher B3, the crusher B3 is modified in this embodiment. The structure of the crusher B3 in the prior art is as follows: the crusher B3 includes a crushing chamber 45, an upper gate is provided at the upper opening of the crushing chamber 45, a lower gate is provided at the lower opening of the crushing chamber 45, and a double-axis tearing type knife group is provided in the crushing chamber 45. In this embodiment, a through hole is provided on the side wall of the crushing chamber 45, and the through hole is connected to a drainage pipe 47, which is welded on the side wall of the crushing chamber 45 and is located above the double-axis tearing type knife group (compared to the case where the drainage pipe 47 is located below the double-axis tearing type knife group, the material is prevented from entering the drainage pipe 47). Fig.10 and Fig.11As shown, a fixed flange 48 is integrally formed at one end of the drainage duct 47 away from the crushing chamber 45, and a disassembly flange 49 is fixed to the fixed flange 48 by a bolt and nut structure, and the fixed flange 48 and the disassembly flange 49 press the safety bursting membrane 50 onto the drainage duct 47. The disassembly flange 49 is integrally formed by a short tube in the middle and a disk surface, and the short tube is coaxial with the disk surface, and the inner diameter and outer diameter of the short tube are consistent with the inner diameter and outer diameter of the drainage duct 47. In this embodiment, the safety bursting membrane 50 is a rubber membrane, and non-penetrating scratches are provided on the surface of the safety bursting membrane 50. One end of the inherent safety bursting membrane 50 of the drainage duct 47 needs to face an open space, and no equipment or other objects can be present, and it cannot be set toward people, to prevent the ejected objects during the explosion from injuring people or damaging equipment.

[0063] like Fig.10 As shown, the lower part of the crushing chamber 45 is connected to the nitrogen production system ( Figure 2 (not shown). When the material is crushed, it is necessary to keep the oxygen content in the crushing chamber 45 less than 8%, and the oxygen content in the crushing chamber 45 is adjusted by flushing nitrogen. When the solid organic waste after screening is crushed by the crusher B3, the upper gate is opened, the solid organic waste is added to the crushing chamber 45, and then the upper gate is closed, and nitrogen is flushed into the crushing chamber 45 to adjust the oxygen content in the crushing chamber 45 to less than 8% (in this process, the upper and lower gates seal the crushing chamber 45, and the nitrogen filled in increases the pressure in the crushing chamber 45 continuously, compressing the oxygen content to below 8%). After the crushing operation is completed, the lower gate is opened to discharge the material. Each crushing operation requires the pressure in the crushing chamber 45 to be readjusted to below 8%. Preferably, a nitrogen tank is also provided between the nitrogen production unit C and the crushing chamber 45 for temporarily storing nitrogen, because the crusher B3 cannot work continuously, and the next crushing operation can only be carried out after one crushing operation is completed. In addition, the crushing unit B is also equipped with an alarm device (TW07-P series host, equipped with a PT100 temperature sensor). The temperature sensor of the alarm device is installed in the crushing chamber 45 to detect the temperature in the crushing chamber 45. When the temperature in the crushing chamber 45 is greater than 80°C, the alarm device alarms to remind the operator (the first high temperature alarm), and the material in the crusher B3 is in danger of explosion or combustion. The operator decides whether to shut down the machine to stop feeding or stop the crushing operation according to the on-site situation; when the temperature in the crushing chamber 45 is greater than 100°C, the alarm device alarms to remind the operator again (the second high temperature alarm), and at this time, the machine must be shut down to stop feeding and crushing operations.

[0064] The second screening unit D includes a third belt conveyor D1 and a second magnetic separator D2 (RCYD), and the second magnetic separator D2 is fixed above the third belt conveyor D1 (the second magnetic separator D2 is fixed by a frame). While the crushed material output from the crusher B3 is being transported by the third belt conveyor D1, the second magnetic separator D2 screens it to remove metal particles and obtain the screened crushed material. The screened crushed material is compressed by the compressor P to obtain a solid organic hazardous waste product F. The compression process is to make the product regular in shape and easy to pack.

[0065] The treatment routes for solid organic waste are as follows:

[0066] (1) Pre-classification step

[0067] After solid organic hazardous waste is recycled, it is tested for physical and chemical properties. Those that meet the process requirements (e.g., particle size and type, etc.) are classified as qualified hazardous waste R2. Qualified hazardous waste R2 is transmitted to compressor P through transmission unit E (including the fourth belt conveyor E1). After compression, solid organic hazardous waste finished product F is formed. Solid organic hazardous waste that does not meet the process requirements in the physical and chemical property test results is classified as hazardous waste to be screened and crushed R1. The scope of solid organic hazardous waste is shown in Table 1, where the categories refer to the categories specified in the National List of Hazardous Wastes.

[0068] Table 1 Scope of solid organic hazardous waste

[0069]

[0070] (2) First screening step

[0071] This step is carried out in the first screening unit A. The hazardous waste R1 to be screened and crushed is transported to the first belt conveyor A1, and after manual sorting (removing metal substances, glass, inorganic substances or flammable and explosive substances such as batteries and lighters, and large objects that cannot enter the crusher B3) and the first magnetic separator A3 to remove metal substances (mainly iron), the metal detector A4 detects whether there are still metal substances in the material. If the metal detector A4 shows that there are no metal substances in the material, qualified solid organic waste hazardous waste after screening is obtained. If there are still metal substances in the material of the metal detector A4, it is necessary to stop the machine (stop the transmission of the first belt conveyor A1), and take back the material on the first belt conveyor A1 and re-screen (re-screening by manual screening and re-screening by the first magnetic separator A3). The solid organic waste hazardous waste after screening is transported from the first belt conveyor A1 to the second belt conveyor A2, and then transported by the second belt conveyor A2 to the material pit B1 in the crushing unit B for temporary storage.

[0072] (3) Crushing step

[0073] This step is carried out in the crushing unit B. Since the crusher B3 cannot work continuously, it is necessary to set up a pit B1 to temporarily store materials. The belt speed of the second belt conveyor A2 (1.5m / s-2m / s) is faster than the belt speed of the first belt conveyor A1 (2-10m / min), which can achieve rapid ejection of materials into the pit (pit B1), avoiding the materials from adhering to the wall of the pit B1 due to slow falling, affecting the stacking and operation of the grab bucket B2, and reducing the loss of equipment. The speed of the first belt conveyor A1 is slower, and sufficient time can be reserved for various screening operations. The screened solid organic hazardous waste in the pit B1 is grabbed by the grab bucket B2 and sent to the crusher B3, and after crushing, crushed materials are obtained.

[0074] (4) Second screening step

[0075] This step is performed in the second screening unit D. The crushed material is transported by the third belt conveyor D1, and at the same time, the second magnetic separator D2 removes metal particles from the crushed material to obtain the screened crushed material.

[0076] (5) Steps to obtain finished product

[0077] The sieved crushed material is compressed by the compressor P to obtain the solid organic hazardous waste finished product F (physical and chemical indicators are shown in Table 2). The particle size of the solid organic hazardous waste finished product F is less than or equal to 150mm. The solid organic hazardous waste finished product F with this particle size is a more economical and efficient choice and can be used as fuel, and the production cost is controlled within a reasonable range.

[0078] Table 2 Physical and chemical indicators of finished products

[0079] Serial number project unit Index limit 1 Solid particle size and diameter mm ≤150mm 2 Calorific value kcal Batch stability

[0080] 4. Semi-solid hazardous waste treatment subsystem

[0081] Semi-solid hazardous waste treatment subsystem as attached Fig.13 , including a pre-sorting mechanism, a temporary storage mechanism, a mixing mechanism and a waste liquid input mechanism connected in sequence, and also including an impurity recovery mechanism connected to the pre-sorting mechanism and the mixing mechanism. The temporary storage mechanism is an intelligent three-dimensional warehouse (not shown in the figure).

[0082] Combination Fig.15As shown, the pre-sorting mechanism includes a feeding trough 66, a chain crusher 67, a sorting trough 68, a vibrating screen 69 and a sorting finished product intermediate trough 70 connected in sequence. A screw conveyor 58 is provided between the chain crusher 67 and the sorting trough 68, between the sorting trough 68 and the vibrating screen 69, and between the vibrating screen 69 and the sorting finished product intermediate trough 70. The inlet of the feeding trough 66 is provided with a screen with an aperture of 100 mm, the outlet of the feeding trough 66 is connected to the inlet of the chain crusher 67, the opening of the sorting trough 68 is provided with a screen with an aperture of 50 mm, and the screen aperture of the vibrating screen 69 is also 50 mm. A weighing scale is provided between the sorting finished product intermediate trough 70 and the three-dimensional warehouse (not shown in the figure), and a roller conveyor 62 and a hoisting hoist are provided between the semi-solid unit turning machine 57 (mixing mechanism) and the three-dimensional warehouse.

[0083] Combination Fig.14 As shown, the mixing mechanism includes a semi-solid unit turning machine 57, a mixing intermediate tank 63, a mixing machine 59, a mixing vibrating screen 60, a mixing iron remover 64, and a vibrating feeder connected in sequence. A roller conveyor 62 is provided between the three-dimensional warehouse and the semi-solid unit turning machine 57. A conveyor and a hoisting hoist for conveying empty boxes to the cleaning station are connected to the outside of the semi-solid unit turning machine 57. The waste liquid input mechanism is a waste liquid storage tank 72, and the waste liquid storage tank 72 has multiple ( Fig.13 Only one is shown in the figure, different types of waste liquid are stored in different waste liquid storage tanks 72, and the waste liquid storage tank 72 is connected to a waste liquid pipeline, and the mixing intermediate tank 63 and the mixer 59 are connected to the waste liquid pipeline through a control valve. A screw conveyor 58 is connected between the mixing intermediate tank 63 and the mixer 59, and between the mixer 59 and the mixing vibration screen 60, and the mesh aperture of the mixing vibration screen 60 is 20 mm. The output end of the semi-solid unit vibrating feeder 61 is connected to the storage tank 71 through a screw pump 65, and the output end of the storage tank 71 is also connected to a screw pump 65.

[0084] The pre-sorting mechanism, the mixing mechanism, and the waste liquid input mechanism are all connected to the waste gas pipeline. The vibrating screen 69, the mixing vibrating screen 60, and the mixing iron remover 64 are all connected to the impurity recovery mechanism. A weighing scale is also provided at the entrance of the impurity recovery mechanism.

[0085] In this embodiment, there are two sets of mixing mechanisms, and the output end of each semi-solid unit vibrating feeder 61 of each set of mixing machine 59 is connected to two storage tanks 71 ( Fig.13 Only the two right side tanks 71 are shown.

[0086] The specific implementation process is as follows: Semi-solid hazardous wastes include various types of industrial sludge, distillation residues, ink residues, paint residues, oil-based drilling cuttings, coating residues, etc. Liquid hazardous wastes mainly include waste organic solvents, oily wastewater, waste acid, waste alkali, etc. After various types of semi-solid hazardous wastes are collected from waste-producing units, they are placed in standard containers and then transported to the pretreatment center by vehicle. After unloading at the pretreatment center, they are weighed, and then the compacted sludge and other hazardous wastes in the container are poured into the feeding trough 66. The screen at the entrance of the feeding trough 66 will screen out the mixed packaging materials and lumps with a volume exceeding 100mm. The screened sludge and other hazardous wastes pass through the feeding trough 66 into the chain crusher 67. The chain crusher 67 crushes the hazardous waste entering it. The crushed hazardous waste is discharged from the chain crusher 67 to the screw conveyor 58. The compacted hazardous waste is removed from the container. The remaining hazardous waste after disposal is also conveyed to the screw conveyor 58, which transports the hazardous waste to the sorting tank 68. The lumps with a volume of more than 50 mm are screened out by gravity at the screen in front of the sorting tank 68. The screened hazardous waste is transported to the vibrating screen 69 by the screw conveyor 582. The vibrating screen 69 screens the hazardous waste again to ensure that the particle size of the screened hazardous waste is less than 50 mm. The screened hazardous waste is transported to the sorting finished product intermediate tank 70 by the screw conveyor 58. The hazardous waste in the sorting finished product intermediate tank 70 is discharged into a container of standard capacity through a control valve. The hazardous waste contained in the container is packaged after being measured by a metering scale, and then transported to the intelligent three-dimensional warehouse for storage by a roller conveyor 62 and a hoisting hoist.

[0087] The hazardous waste that has been pre-sorted and temporarily stored in the intelligent stereoscopic warehouse is used for coordinated disposal in the cement kiln after mixing and matching. During the mixing and matching process, the semi-solid hazardous waste and liquid hazardous waste in the intelligent stereoscopic warehouse are fully mixed according to a specific matching scheme by using a mixing mechanism, and the hard and soft block impurities and metals in the materials are sorted and removed again, and finally the various physical and chemical indicators entering the cement kiln are achieved. During the mixing and matching process, the semi-solid hazardous waste with a particle size of less than 50 mm contained in the container is transported to the semi-solid unit turning machine 57 by a hoisting hoist and a roller conveyor 62. The semi-solid unit turning machine 57 turns the container and dumps the contained semi-solid hazardous waste into the mixing middle tank 63. The empty container after dumping is transported to the empty box and empty barrel cleaning operation area by a roller conveyor 62 and a hoisting hoist. According to the matching scheme, the waste liquid in the waste liquid storage tank 72 is added to the mixing intermediate tank 63 through the waste liquid pipeline and the control valve. After reaching the set amount under the control of the control system, the feeding is stopped, and then the set amount of other types of waste liquid is added in the same steps for preliminary mixing, so that the liquid content, viscosity, pH value and form of the hazardous waste are preliminarily adjusted. The hazardous waste in the mixing intermediate tank 63 is transported to the mixer 59 through the screw conveyor 58 after preliminary conditioning. In the mixer 59, according to the matching scheme, the waste liquid in different waste liquid storage tanks 72 is sent to the mixer 59 through the waste liquid pipeline and the control valve. The semi-solid hazardous waste and liquid hazardous waste (provided by the liquid hazardous waste treatment subsystem) mixed in the mixer 59 are mixed and stirred, so that the liquid content, viscosity, pH value, form and particle size of the mixed hazardous waste are further improved to meet the standards for entering the cement kiln. After mixing and matching, the hazardous waste is in a homogeneous slurry state, has good fluidity, and has a balanced calorific value. The semi-solid product after mixing and matching is transported to the mixing vibration screen 60 by a screw conveyor 58. After screening by the mixing vibration screen 60, impurities with a particle size greater than 20 mm are screened out. The screened product is transported to the semi-solid unit vibrating feeder 61. During the transportation process, it is treated by the iron remover 64 to remove the metal contained in the product. The product without impurities and metals enters the screw pump 65 from the semi-solid unit vibrating feeder 61, and enters the storage tank 71 for storage under the pumping of the screw pump 65. When used later, it is extracted from the storage tank 71 and transported to the cement kiln for use.

[0088] The impurities, lumps, metals, etc. separated in the feeding trough 66, sorting trough 68, vibrating screen 69, mixing vibrating screen 60 and iron remover 64 are respectively packed in standard containers and transported to the warehouse by forklift for classified storage to facilitate further classification and processing.

[0089] Waste gases such as HCl, SO2, hydrogen sulfide, ammonia, VOC, and acidic gases generated during the pre-sorting, mixing, and waste liquid input processes are discharged through waste gas pipes and further treated harmlessly by alkali washing towers, activated carbon, dust collectors, etc. before being discharged.

[0090] The quality indicators of the semi-solid hazardous waste after the above treatment, such as harmful element content, calorific value, moisture, particle size, viscosity, pH value, flash point, etc., reach a relatively uniform range, and all indicators meet the requirements for cement kiln coordinated disposal. The treated hazardous waste forms a standardized product for cement kiln coordinated disposal with uniform physical and chemical properties, and the hazardous waste entering the kiln in the cement kiln coordinated disposal technology is a product with certain uniform indicators in all aspects, which is more suitable for the requirements for entering the kiln in different parts of the cement kiln. It has better combustion disposal effect when used in the cement kiln, has lower negative impact on cement, and can obtain better hazardous waste disposal effect.

[0091] Embodiment 2:

[0092] This embodiment is basically the same as the first embodiment, except that a cleaning structure is provided in the present embodiment, which is specially used to clean the broken glass bottles and other materials coming out of the injection bottle crusher 4, and collect the waste liquid obtained by cleaning and discharge it into the third waste liquid barrel (not shown in the figure). The waste liquid in the third waste liquid barrel is liquid hazardous waste. The above process replaces the manual cleaning process in the first embodiment. The details are as follows: Figure 4 As shown, the injection bottle crusher 4 is fixed to the floor 37 of the second floor by screws, and the discharge barrel of the injection bottle crusher 4 passes through the floor 37. A cleaning structure is provided below the discharge barrel of the injection bottle crusher 4. The cleaning structure includes a cleaning barrel 25, and the cleaning barrel 25 is placed on a frame 28. The cleaning barrel 25 is a cylindrical barrel with an upper opening, and a take-out port is provided on the side wall of the cleaning barrel 25, and a cleaning barrel cover 26 is provided on the take-out port. Figure 5 As shown, the cleaning cylinder cover 26 includes an outer cover portion 29 and an inner cover portion 30 which are integrally formed. When in use, the inner cover portion 30 is inserted into the taking port, and the outer cover portion 29 is fixed to the side wall of the cleaning cylinder 25 by screws. A rubber layer is bonded to the side wall of the inner cover portion 30. When the inner cover portion 30 is inserted into the taking port, the rubber layer seals the inner cover portion 30 and the cleaning cylinder 25. The side of the inner cover portion 30 facing the inside of the cleaning cylinder 25 is a curved surface. When the cleaning cylinder cover 26 is closed on the cleaning cylinder 25, the side of the inner cover portion 30 facing the inside of the cleaning cylinder 25 and the inner side of the cylinder wall of the cleaning cylinder 25 form a flat curved surface (cylindrical surface). The cleaning cylinder 25 is also connected to a water outlet pipe 27. One end of the water outlet pipe 27 is connected to the cleaning cylinder 25, and the other end is connected to a third waste liquid bucket (not shown in the figure). The water outlet pipe 27 is used to discharge liquid hazardous waste in the cleaning cylinder 25. A water valve is provided in the water outlet pipe 27. The internal structure of the cleaning cylinder 25 is shown in FIG. Figure 6 The cleaning cylinder 25 is slidably connected with a screening cylinder, which is a cylindrical structure with an opening at the top and a screen at the bottom, and includes a coaxially arranged cylindrical screening cylinder side wall 31 and a protective cylinder 32. Figure 6 and Figure 7As shown, the bottom wall of the screening cylinder is circular, and includes a coaxially arranged screen portion 34 and a middle portion 35. The inner edge of the screen portion 34 and the outer edge of the middle portion 35 are fixed by welding. A threaded hole 42 is provided at the center of the middle portion 35. The outer edge of the screen portion 34 is fixed by welding to the inner side of the screening cylinder side wall 31, and the protective cylinder 32 is welded to the upper side of the middle portion 35. Figure 6 As shown, sliders 38 are welded on both sides of the side wall 31 of the screening cylinder. There are two sliders 38, which are axially symmetrically distributed (the axis of symmetry is the central axis of the side wall 31 of the screening cylinder). A slideway 39 corresponding to the slider 38 is provided on the inner side of the side wall of the cleaning cylinder 25, and the slideway 39 is vertically arranged. A spring 40 is arranged in the slideway 39, and the lower end of the spring 40 is welded and fixed on the bottom wall of the cleaning cylinder 25, and the upper end of the spring 40 is welded and fixed below the slider 38. A threaded column 33 is threadedly connected in the threaded hole 42 of the screening cylinder, and the lower part of the threaded column 33 is inserted into the blind hole of the bottom wall of the cleaning cylinder 25, and the threaded column 33 can rotate along its own central axis. A protective cylinder hole 36 is provided on the upper part of the protective cylinder 32, and the threaded column 33 is inserted into the protective cylinder hole 36 (not threaded connection). The setting of the protective cylinder 32 can prevent materials such as broken glass bottles from being stuck between the threaded column 33 and the threaded hole 42. Four stirring paddles 41 are welded to the threaded column 33 . The four stirring paddles 41 are located on the same plane and are perpendicular to the threaded column 33 . The four stirring paddles 41 are in a cross shape.

[0093] When using this cleaning structure, align the discharge port of the injection bottle crusher 4 with the screening cylinder, and add water to the cleaning cylinder 25 at the same time (a hose in the prior art can be used, one end of the hose is connected to the faucet, and the other end is used to add water to the cleaning cylinder 25) until the screen part 34 is submerged. As more and more materials such as broken glass bottles are discharged from the discharge port of the injection bottle crusher 4 to the screening cylinder, the materials will press the screening cylinder downward, and the screening cylinder will slide downward. Since it is threadedly connected to the threaded column 33, and the screening cylinder itself will not rotate, it can drive the threaded column 33 to rotate. The rotation of the threaded column 33 will drive the stirring paddle 41 to rotate, and the stirring paddle 41 stirs the water in the cleaning cylinder 25, which helps to clean the broken glass bottles. In particular, for small glass bottles containing powdered drugs, if such hazardous waste is left for a long time, the drug expires, the powder clumps, and it is difficult to dissolve in water. If it is stirred, it can help the drug dissolve. This device converts solid drugs into liquid hazardous waste, and then uses the liquid hazardous waste treatment subsystem to harmlessly treat the liquid hazardous waste. When the screening cylinder descends to the lowest end (spring 40 is in the maximum compression state), the hazardous liquid in the cleaning cylinder 25 is discharged to the third waste liquid bucket through the outlet pipe 27. Then the cleaning cylinder cover 26 is removed, and the material is taken out of the screening cylinder. The cleaned and crushed injection glass bottles are placed in a small glass bottle box (not shown in the figure) and then transported to the vertical warehouse for temporary storage by a forklift (this step is the same as in Example 1). The inner side of the side wall of the cleaning cylinder 25 is provided with a horizontally arranged insertion groove 43 (such as Figure 6As shown in the figure, the upper edge of the insertion slot 43 and the upper edge of the taking port (square) of the cleaning cylinder 25 are on the same horizontal plane. In order to prevent the spring 40 from resetting during the process of taking out the material, it is necessary to insert a hard plate (such as a stainless steel plate) into the cleaning cylinder 25 from the taking port of the cleaning cylinder 25. One end of the hard plate is located in the insertion slot 43, and the other end is located at the upper frame of the taking port of the cleaning cylinder 25. The hard plate is located at the upper end of the screening cylinder to limit the screening cylinder and prevent the screening cylinder from moving upward. A strip-shaped notch is provided on the side of the hard plate away from the taking port to avoid the threaded column 33. When the hard plate is inserted into the insertion slot 43, the threaded column 33 is inserted into the strip-shaped notch to prevent the threaded column 33 from blocking the insertion of the hard plate. As shown in the figure Figure 8 As shown, a wall opening is provided on the side wall 31 of the screening cylinder, and a screening cylinder door 44 is provided on the wall opening. The screening cylinder door 44 can be opened after inserting a hard plate, and broken glass bottles and other materials can be taken out through the material taking opening of the cleaning cylinder 25 and the wall opening of the side wall 31 of the screening cylinder. The left side of the screening cylinder door 44 is hinged to the side wall 31 of the screening cylinder through a hinge, and the right side is fixed with a latch in the prior art by screws, and the screening cylinder door 44 can be locked to the side wall 31 of the screening cylinder by inserting the latch.

[0094] Since the crusher is located on the second floor and the materials are taken on the first floor, the device can transport the materials from top to bottom, and during the transportation process, the materials are immersed in water, so that the materials can be transported and cleaned at the same time, thereby washing away the chemical substances that may cause harm to the environment and improving work efficiency. This cleaning process is more effective than simple soaking and is more conducive to dissolving the chemical substances in the broken glass bottles. While the screening cylinder is moving downward, it will drive the stirring paddle 41 to rotate, stirring the water in the cleaning cylinder 25, which can promote the dissolution of solid chemical substances from the glass bottles (for example, small medicine bottles containing penicillin), and further promote the separation of glass materials waiting to be recycled and chemical substances that may cause harm to the environment.

[0095] Example 3

[0096] This embodiment is basically the same as embodiment 1, except that Fig.12 As shown, a cleaning structure is also provided in the drainage duct 47 of this embodiment, and the fixing method of the safety bursting membrane 50 is different. When the material in the crushing chamber 45 explodes, part of the crushed material may be rushed into the drainage duct 47. Over time, the drainage duct 47 will be blocked, thereby affecting the explosion-proof effect (the gas cannot be discharged in time). This embodiment optimizes the structure to avoid the above situation. In this embodiment, the safety bursting membrane 50 is no longer fixed to the drainage duct 47 in the form of a flange, but is crimped to the end of the drainage duct 47 away from the crushing chamber 45 through a pipe cover 51. The outer side of the cylindrical side wall of the pipe cover 51 is provided with an internal thread, and the outer side of the pipe wall of the drainage duct 47 is provided with an external thread matching the internal thread. The top wall of the pipe cover 51 (that is, Fig.12In the embodiment, a circular through hole is provided on the wall of the pipe cover 51 on the right side (the top wall of the pipe cover 51 is opposite to the opening of the drainage tube 47), and its diameter is smaller than the inner diameter of the drainage tube 47. The safety bursting membrane 50 is placed in the pipe cover 51 so that the safety bursting membrane 50 is perpendicular to the drainage tube 47, and then the pipe cover 51 is rotated so that the pipe cover 51 is tightened on the drainage tube 47, and then the safety bursting membrane 50 can be fixed on the drainage tube 47. The cleaning structure includes a connecting rod 52 and a cleaning ring 53 welded to each other, and the cleaning ring 53 is arranged perpendicular to the connecting rod 52, and the connecting rod 52 is perpendicular to the drainage tube 47. A spiral metal wire 54 (made of stainless steel) is wound around the cleaning ring 53 to facilitate cleaning the inner wall of the drainage tube 47. The end of the connecting rod 52 away from the cleaning ring 53 is a sharp tip, which can pierce the safety bursting membrane 50. A limiting block 55 is also integrally formed on the side of the connecting rod 52 away from the cleaning ring 53, and an external thread is provided on the outer surface of the connecting rod 52 on the right side of the limiting block 55. The right end of the connecting rod 52 penetrates the safety bursting membrane 50, passes through the hole on the top wall of the pipe cover 51 through which the connecting rod 52 passes, and then is screwed with the nut 56. The stopper 55 and the nut 56 together fix the cleaning structure on the pipe cover 51, and can fix the safety bursting membrane 50 on the pipe cover 51 to prevent the safety bursting membrane 50 from falling off.

[0097] When in use, the safety bursting membrane 50 is fixed to the pipe cover 51 through the connecting rod 52, and then the cleaning ring 53 is placed in the drainage tube 47, and finally the pipe cover 51 is tightened. If an explosion occurs, the safety bursting membrane 50 is broken, and the safety bursting membrane 50 needs to be replaced. In the process of removing the pipe cover 51, the pipe cover 51 moves in the direction away from the crushing chamber 45, and at the same time drives the movement of the cleaning ring 53. The cleaning ring 53 and the spiral metal wire 54 have a cleaning effect on the inner wall of the drainage tube 47, avoiding the accumulation of particulate matter. In addition, to remove the pipe cover 51, it is necessary to rotate the pipe cover 51 first, and at the same time, the connecting rod 52 drives the cleaning ring 53 to rotate in the drainage tube 47, which can rub and clean the inner wall of the drainage tube 47 more thoroughly.

[0098] Example 4

[0099] The difference between this embodiment and embodiment 1 is that: in this embodiment, Fig.16 As shown, since the liquid hazardous waste in the liquid hazardous waste treatment subsystem of the present technical solution is transported by pipeline 73 (liquid transportation between the raw material tank 22, the reactor 23 and the finished product tank 24), in order to avoid the problem of clogging of pipeline 73, the connection method of pipeline 73 and the structure of the connecting parts are improved.

[0100] In this embodiment, Fig.17 and Fig.18As shown, the pipeline 73 is divided into regions and arranged in a spliced ​​shape, and the two pipelines 73 are connected by a regulating valve. The regulating valve includes a fixed part and an adjusting part. The fixed part in this embodiment is a fixed ring 74 that can be connected to the pipeline 73. The inner diameter of the fixed ring 74 is provided with a switch valve for opening and closing the inner hole of the fixed ring 74. An adjusting ring 75 (adjusting part) is rotatably connected to the fixed ring 74. The inner diameter of the adjusting ring 75 is smaller than the inner diameter of the fixed ring 74. Flushing holes 76 are evenly distributed axially on the adjusting ring 75. The flushing holes 76 are in contact with the inner wall of the pipeline 73 to be connected, and in order to ensure the flushing effect, the flushing holes 76 can be arranged to be inclined toward the inner wall of the pipeline 73 to specify the flushing direction. A number of support seats 77 are evenly fixed circumferentially on the adjusting ring 75, and L-shaped telescopic rods 78 are fixed to the support seats 77. The telescopic rod 78 is an electric telescopic rod 78, and its extension and retraction can be achieved through electrical control. As shown Fig.19 As shown, one end of the telescopic rod 78 away from the support seat 77 is fixedly connected to a cleaning block 79 that fits the inner wall of the pipe 73 to be connected, and the end of the cleaning block 79 that fits the inner wall of the pipe 73 is arranged in an arc shape.

[0101] When the liquid hazardous waste flows in the pipe 73, the switch valve is in the open state, and the liquid hazardous waste will flow from one pipe 73, through the fixed ring 74, the adjusting ring 75 in sequence, and finally flow into the next pipe 73, so as to realize the transportation of the liquid hazardous waste. At this time, most of the liquid hazardous waste will flow through the holes of the inner diameter of the fixed ring 74 and the adjusting ring 75, and the flow rate is relatively large. When the pipe 73 is used for a period of time and there is a blockage problem, the operator can judge which section of the pipe 73 has the blockage problem based on experience or by knocking the pipe 73, and then close the switch valve at the input end of the pipe 73. Then pour the solvent or clean water into the pipe 73, and the clean water will flow into the fixed ring 74 at a certain flow rate. Since the switch valve is closed, the clean water will only flow out from the flushing hole 76. Since the water flow of the water inlet is large and the diameter of the flushing hole 76 is small, the water pressure will increase under the condition of a certain flow rate, so that the cleaning water will be sprayed out from the flushing hole 76. Since the flushing hole 76 is inclined toward the inner wall of the pipe 73, the cleaning water will impact the inner wall of the pipe 73, diluting and flushing the stains inside the pipe 73. At the same time, the telescopic rod 78 is controlled to extend, so that the cleaning block 79 moves closely against the inner wall of the pipe 73 to scrape the dirt on the inner wall of the pipe 73. Since the adjustment ring 75 is rotatably connected to the fixed ring 74, when the cleaning water impacts the adjustment ring 75, the adjustment ring 75 will rotate to a certain extent, which can realize multi-angle and multi-directional flushing and dirt scraping of the inner wall of the pipe 73, avoiding the formation of dead angles.

[0102] This embodiment can achieve fixed-point cleaning of a specific pipe 73 through the synergistic effects of flushing, dilution and scraping, and there is no need to disassemble the entire pipe 73. The construction difficulty is small, the operation is convenient, and the accuracy is high.

[0103] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. Hazardous waste recycling treatment system, characterized by: Including liquid hazardous waste treatment subsystem, solid inorganic hazardous waste treatment subsystem, solid organic hazardous waste treatment subsystem and semi-solid hazardous waste treatment subsystem; The solid inorganic hazardous waste treatment subsystem includes a pre-sorting equipment group and a crushing equipment group; The liquid hazardous waste treatment subsystem is used to perform harmless treatment on the liquid hazardous waste from the pre-sorting equipment group and the crushing equipment group; the liquid hazardous waste treatment subsystem includes a raw material tank, a reaction kettle and a finished product tank which are connected in sequence, and the finished product tank is used to store liquid hazardous waste products with a particle size of less than 2mm, a pH value between 6-9 and a flash point greater than 60°C; The solid organic hazardous waste treatment subsystem includes a first screening unit, a crushing unit and a second screening unit in sequence along the material movement direction. The crushing unit includes a crusher for crushing the solid organic hazardous waste into particles with a diameter less than 150 mm. The crusher is provided with a crushing chamber. The side wall of the crushing chamber is connected to a drainage pipe. A safety blasting membrane is fixed to the end of the drainage pipe away from the crushing chamber. A cleaning structure is also provided in the drainage pipe. The safety bursting membrane is crimped on the end of the drainage tube away from the crushing chamber through the tube cover; the outer side of the cylindrical side wall of the tube cover is provided with an internal thread, and the outer side of the tube wall of the drainage tube is provided with an external thread matching the internal thread; a circular through hole is provided on the top wall of the tube cover, and its diameter is smaller than the inner diameter of the drainage tube; the safety bursting membrane is placed in the tube cover so that the safety bursting membrane is perpendicular to the drainage tube, and then the tube cover is rotated so that the safety bursting membrane can be fixed on the drainage tube after the tube cover is tightened on the drainage tube; The cleaning structure includes a connecting rod and a cleaning ring welded to each other, the cleaning ring is vertically arranged to the connecting rod, and the connecting rod is vertical to the drainage pipe; a spiral metal wire is wound on the cleaning ring; the end of the connecting rod away from the cleaning ring is a pointed end, which can pierce the safety bursting membrane; a limiting block is also integrally formed on the side of the connecting rod away from the cleaning ring, and the outer surface of the connecting rod on the right side of the limiting block is provided with an external thread; the right end of the connecting rod penetrates the safety bursting membrane, and passes through the hole on the top wall of the pipe cover for the connecting rod to pass through, and then is screwed with the nut; the limiting block and the nut jointly fix the cleaning structure on the pipe cover, and can fix the safety bursting membrane on the pipe cover to prevent the safety bursting membrane from falling off.

2. The hazardous waste recycling treatment system according to claim 1 is characterized in that: The pre-sorting equipment group includes a sorting table and an injection bottle crusher; the sorting table includes a bottle washing pool and workbenches located on both sides of the bottle washing pool; manual sorting positions and collection baskets are provided on both sides of the workbench, and the collection baskets include a glass collection basket and a packaging collection basket.

3. The hazardous waste recycling treatment system according to claim 2 is characterized in that: The crushing equipment group includes a turning machine, a vibrating feeder, a primary crusher, a secondary crusher, a drain screw conveyor and a vibrating screen in order according to the direction of material movement; the drain screw conveyor is used to separate liquid hazardous waste from solid materials; the vibrating screen is used to separate bottle caps and broken glass.

4. The hazardous waste recycling treatment system according to claim 3 is characterized by: The drainage screw conveyor includes a conveying cylinder, which forms an angle with the horizontal plane. The bottom end of the conveying cylinder is connected to a vertically arranged waste liquid pipe, and a second waste liquid barrel is placed below the waste liquid pipe; the mesh aperture of the vibration screening machine is 8 mm.

5. The hazardous waste recycling treatment system according to claim 4 is characterized in that: The primary crusher and the secondary crusher are both hammer crushers, and the secondary crusher is used to obtain glass particles with a particle size less than 8 mm.

6. The hazardous waste recycling treatment system according to claim 1 is characterized by: The semi-solid hazardous waste treatment subsystem includes a pre-sorting mechanism, a temporary storage mechanism, and a mixing mechanism connected in sequence, and also includes an impurity recovery mechanism connected to the pre-sorting mechanism and the mixing mechanism; the pre-sorting mechanism includes a feeding trough, a chain crusher, a sorting trough, a vibrating screen and an intermediate trough for sorting finished products connected in sequence; the front ends of the chain crusher and the sorting trough are connected to a screen with an aperture of 100 mm, and the screen, vibrating screen, mixing vibrating screen, and mixing iron remover are all connected to the impurity recovery mechanism.

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