Solidification device for hazardous waste landfill

Abstract

The invention relates to the technical field of hazardous waste treatment, in particular to a curing device for hazardous waste landfill, which comprises a curing box, the top of the curing box is provided with a first feed hopper and a second feed hopper, the side wall of the curing box is provided with a water inlet pipe and a medicine inlet pipe, and the bottom of the curing box is provided with a discharge port. A double-opening gate is arranged at the bottom of the curing box and located at the discharge port; the curing hopper is arranged at the bottom of the curing box, and the curing hopper can extrude a stirred concrete-shaped material into blocks and discharge the blocks, so that through the integrated design, the two steps of mixing and stirring and extruding into blocks are carried out together, secondary transfer is not needed, and the treatment efficiency of hazardous wastes is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of hazardous waste treatment, in particular to a solidification device for hazardous waste landfill. Background Art

[0002] With the rapid development of industrial production, the amount of hazardous waste generated is increasing. Toxic liquid waste, among other hazardous substances, contains heavy metals, persistent organic pollutants, corrosive substances, and other harmful components. If improperly disposed of, it can cause irreversible pollution to the soil, groundwater, and atmosphere, seriously threatening ecosystem stability and human health. Therefore, how to safely and efficiently dispose of toxic liquid waste has become a key issue in the field of environmental protection that needs to be addressed.

[0003] At present, the common treatment process for toxic liquids in hazardous waste is to add water, chemicals and cement to the toxic liquid in sequence, mix them thoroughly to make concrete slurry, and then make the concrete slurry into blocks, which are then used for landfill treatment after hardening. Although this treatment method has achieved the solidification and stabilization of toxic liquid waste to a certain extent, it has significant defects. First, the block-making process is cumbersome and requires additional block-making equipment. The operation process, such as mold forming and demoulding, is complicated, which not only increases the equipment purchase cost and site area occupied, but also consumes a lot of manpower and time costs; secondly, the existence of multiple processes prolongs the entire treatment cycle, greatly reducing the efficiency of hazardous waste treatment, and making it difficult to meet the growing demand for hazardous waste treatment.

[0004] Therefore, there is an urgent need to develop a new type of solidification device for hazardous waste landfill, which can simplify the treatment process, reduce unnecessary treatment steps, and achieve efficient solidification treatment of toxic liquid waste, thereby improving the efficiency of hazardous waste treatment, reducing treatment costs, and ensuring the safety and reliability of hazardous waste landfill treatment. To this end, we proposed a solidification device for hazardous waste landfill to well solve the above-mentioned drawbacks. Summary of the Invention

[0005] The object of the present invention is to provide a solidification device for hazardous waste landfill, so as to solve the problems raised in the above-mentioned background technology.

[0006] The present invention is achieved through the following technical solutions: a solidification device for hazardous waste landfill, comprising a solidification box, a first feed hopper and a second feed hopper are provided on the top of the solidification box, a water inlet pipe and a drug inlet pipe are provided on the side wall of the solidification box, a discharge port is provided at the bottom of the solidification box, a double-opening gate is provided at the bottom of the solidification box and at the discharge port, and further comprising:

[0007] A stirring mechanism, the stirring mechanism comprising a stirrer horizontally arranged in the middle section of the curing box;

[0008] A curing bucket, wherein the curing bucket is arranged at the bottom of the curing box and is located at the discharge port, the curing bucket is a through structure at both ends, and a sliding inclined plate is symmetrically provided on the left and right sides of the inner top of the curing bucket, and an arc-shaped closing plate is provided between the bottom end of the sliding inclined plate and the bottom wall opening of the curing bucket, and the centers of the two arc-shaped closing plates coincide with each other, and a curing roller is provided between the two arc-shaped closing plates, and the two side walls of the curing roller are tightly fitted with the two arc-shaped closing plates respectively, and the front and rear ends of the curing roller are tightly fitted with the inner front and rear side walls of the curing bucket respectively, and the bottom of the curing roller extends to the bottom of the curing bucket;

[0009] A curing groove is provided on the side wall surface of the curing roller, and an extrusion mechanism is provided on one of the arc-shaped closing plates; when the curing groove faces the extrusion mechanism, the extrusion mechanism is used to extend into the curing groove to compress the material in the curing groove.

[0010] Optionally, the front and rear ends of the curing roller are provided with rotating shafts, the rotating shafts pass through the side wall of the curing bucket and rotate with the curing bucket, and the ends of the two rotating shafts are both provided with driving wheels;

[0011] Universal wheels are installed at the four corners of the bottom of the curing box through supporting feet, and the bottom surfaces of the universal wheels and the driving wheels are flush.

[0012] Optionally, a protective frame is embedded in the interior of the curing tank, the protective frame is a U-shaped plate structure, the inner surface of the protective frame is a smooth plane, and the interior of the protective frame constitutes a filling material area.

[0013] Optionally, the extrusion mechanism includes a sliding seat, the sliding seat is a frame structure with two ends penetrated, one of the arc-shaped closing plates is penetrated by a sliding opening, and the sliding seat is slidably arranged in the sliding opening;

[0014] A T-shaped pressing plate is provided inside the sliding seat, and the T-shaped pressing plate and the sliding seat are slidably matched along the radial direction of the curing roller. The length and width of the T-shaped pressing plate are respectively adapted to the inner length and width of the protective frame.

[0015] Optionally, a hidden groove is provided inside the sliding opening and near the top end of the arc-shaped closing plate, an elastic rope is provided inside the hidden groove, and the free end of the elastic rope is connected to the sliding seat; in a natural state, the elastic rope is in a stretched state.

[0016] Optionally, both ends of the T-shaped pressure plate are provided with first guide posts, a through opening for the first guide posts to pass through is provided on the side wall of the sliding seat, and both the front and rear side walls inside the curing bucket are provided with first guide grooves, and the ends of the first guide posts are movably embedded in the first guide grooves;

[0017] When the first guide post is located at the inner upper end of the first guide groove, the T-shaped pressing plate is located inside the sliding seat;

[0018] When the first guide column is located at the inner lower end of the first guide groove, one end of the T-shaped pressing plate extends into the inner side of the protective frame.

[0019] Optionally, a movable cavity is provided in the bottom wall of the protective frame, and a through cavity communicating with the movable cavity is provided in both side walls of the protective frame. The interior of the movable cavity is elastically connected to a movable plate through an elastic member, and movable rods are provided at two diagonal points of the movable plate, and the movable rods pass through the movable cavity; a positioning block is provided at the outer end of the movable rod, and a positioning slot for inserting the positioning block is provided at the inner end of the sliding seat.

[0020] Optionally, second guide posts are provided at both front and rear ends of the movable plate, openings for the second guide posts to pass through are provided on the protective frame and the curing roller, and second guide grooves are provided on both front and rear side walls of the interior of the curing bucket, and the ends of the second guide posts are movably embedded in the second guide grooves;

[0021] The second guide groove is circular, the part of the second guide groove facing the sliding opening is the first arc segment, and the rest is the second arc segment. When the second guide column is located inside the first arc segment, the positioning block is embedded in the positioning groove; when the second guide column is located inside the second arc segment, the positioning block is flush with the outer surface of the curing roller.

[0022] Optionally, a protruding portion is provided inside the protective frame, and the left and right side walls of the protruding portion are tightly fitted with the inner wall of the protective frame, and the front and rear side walls of the protruding portion are tightly fitted with the inner wall of the curing tank.

[0023] Optionally, third guide posts are provided at both front and rear ends of the ejection portion, an opening for the third guide posts to pass through is provided on the curing roller, and third guide grooves are provided on both front and rear side walls of the interior of the curing bucket, and the ends of the third guide posts are movably embedded in the third guide grooves;

[0024] The third guide groove is circular, the downward portion of the third guide groove is the third arc segment, and the remaining portion is the fourth arc segment. When the third guide column passes through the inside of the third arc segment, the ejection portion first extends outward and then retracts inward.

[0025] Compared with the prior art, the present invention provides a solidification device for hazardous waste landfill, which has the following beneficial effects:

[0026] 1. The present invention provides a curing hopper at the bottom of the curing box. The curing hopper can squeeze the mixed concrete-like material into blocks and discharge them. Therefore, through the integrated design, the present invention realizes the two steps of mixing and extruding into blocks at the same time, eliminating the need for secondary transfer, and greatly improving the treatment efficiency of hazardous waste.

[0027] 2. The present invention drives the curing roller to rotate synchronously through the rolling of the driving wheel. The rotation of the curing roller can discharge the material intermittently, which is conducive to evenly discharging the extruded block material on the ground;

[0028] 3. The present invention can drive the intermittent movement of the extrusion mechanism through the rotation of the curing roller. The extrusion mechanism squeezes the material in the curing tank into blocks, thereby facilitating transportation and filling processing. At the same time, the intermittent movement of the extrusion mechanism is driven by the positioning block in the protective frame, so that the T-shaped pressure plate can be accurately pressed into the curing tank.

[0029] 4. The curing tank of the present invention is further provided with an ejector portion, which can push out the block materials in the curing tank, thereby realizing an automatic material removal process, thereby helping to further improve the degree of automation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the curing bucket structure of the present invention;

[0032] Figure 3 This is a schematic structural diagram of the curing roller of the present invention;

[0033] Figure 4 This is a cross-sectional view of the curing bucket structure of the present invention;

[0034] Figure 5 This is a cross-sectional view of the curing bucket of the present invention in another state;

[0035] Figure 6 This is a disassembled diagram of the curing roller and protective frame structure of the present invention;

[0036] Figure 7 This is a schematic diagram of the extrusion mechanism of the present invention;

[0037] Figure 8 This is a cross-sectional view of the protective frame structure of the present invention;

[0038] Figure 9 for Figure 4 The corresponding figure at A is enlarged;

[0039] Figure 10 for Figure 6 The corresponding figure at point B is enlarged.

[0040] In the figure: 100, curing box; 101, first feed hopper; 102, second feed hopper; 103, water inlet pipe; 104, drug inlet pipe; 105, discharge port; 106, double-opening gate; 107, universal wheel; 200, stirring mechanism; 201, stirrer; 202, drive motor; 300, curing hopper; 301, sliding ramp; 302, arc-shaped closing plate; 303, curing roller; 304, curing trough; 305, rotating shaft; 306, driving wheel; 307, protective frame; 308, sliding port; 309, hidden slot; 310, elastic rope; 311 , first guide groove; 312, movable cavity; 313, elastic member; 314, movable plate; 315, movable rod; 316, positioning block; 317, second guide column; 318, second guide groove; 3181, first arc segment; 3182, second arc segment; 319, ejection portion; 320, third guide column; 321, third guide groove; 3211, third arc segment; 3212, fourth arc segment; 400, extrusion mechanism; 401, sliding seat; 402, T-shaped pressure plate; 403, first guide column; 404, penetration port; 405, positioning notch. DETAILED DESCRIPTION

[0041] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0042] In existing technologies, the treatment of toxic liquids from hazardous waste typically requires multiple independent processes, including mixing, molding, and demolding. Each process relies on specialized equipment. Traditional solidification units typically use a vertical mixing structure. The mixed slurry must be transferred to a pelletizing machine for molding. The mold filling and demolding operations are time-consuming, and the material transfer process between equipment carries the risk of secondary contamination. The overall process is complex and inefficient.

[0043] In order to solve the above problems, this application proposes the following technical solutions:

[0044] See also Figure 1 - Figure 10A solidification device for hazardous waste landfill includes a solidification box 100, a first feed hopper 101 and a second feed hopper 102 are provided on the top of the solidification box 100, a water inlet pipe 103 and a drug inlet pipe 104 are provided on the side wall of the solidification box 100, a discharge port 105 is opened at the bottom of the solidification box 100, and a double-opening gate 106 is provided at the bottom of the solidification box 100 and at the discharge port 105; wherein, the first feed hopper 101 is used to pour in hazardous waste, the second feed hopper 102 is used to pour in cement, the water inlet pipe 103 and the drug inlet pipe 104 are used to pass in clean water and chemicals, respectively, wherein the chemical agents can convert toxic and hazardous waste into low-solubility, low-migration and low-toxicity waste.

[0045] Among them, gate grooves for gates to be embedded are opened on both sides of the discharge port 105. The two gates are symmetrically distributed, and the relative movement of the two gates is controlled by an electric actuator to realize the opening and closing of the discharge port 105.

[0046] This embodiment also includes a stirring mechanism 200 and a curing bucket 300, wherein the stirring mechanism 200 includes an agitator 201 horizontally arranged in the middle section of the curing box 100; a drive motor 202 is provided on the outside of the curing box 100, and the output shaft of the drive motor 202 is coaxially connected to the agitator 201 for controlling the rotation of the agitator 201 to mix water and cement, thereby forming a concrete structure.

[0047] Furthermore, the curing bucket 300 is arranged at the bottom of the curing box 100 and is located at the discharge port 105. The curing bucket 300 is a through structure at both ends. Sliding inclined plates 301 are symmetrically provided on the left and right sides of the inner top of the curing bucket 300. The two sliding inclined plates 301 form a V shape. An arc-shaped closing plate 302 is provided between the bottom end of the sliding inclined plate 301 and the bottom wall opening of the curing bucket 300. The centers of the two arc-shaped closing plates 302 coincide with each other, and a space is provided between the two arc-shaped closing plates 302. The curing roller 303, the two side walls of the curing roller 303 are tightly fitted with the two arc-shaped closing plates 302 respectively, the front and rear ends of the curing roller 303 are tightly fitted with the internal front and rear side walls of the curing bucket 300 respectively, and the bottom of the curing roller 303 extends to the bottom of the curing bucket 300; it should be noted that the sliding inclined plate 301 and the arc-shaped closing plate 302 are an integrally formed structure, and the sliding inclined plate 301 and the arc-shaped closing plate 302 are welded and fixed to the front and rear side walls of the curing bucket 300.

[0048] In actual application of this embodiment, during mixing, the double gates 106 are always closed to prevent liquid leakage. Specifically, the toxic waste liquid is first poured into the curing box 100, and then the corresponding chemical agents are poured into the curing box 100 to cause a chemical reaction between the two, converting the toxic and hazardous waste into low-solubility, low-migration, and low-toxic waste. Water is then added to dilute the mixture, and cement and sand are added and mixed to form a concrete-like material. When mixing is completed, the double gates 106 are opened, and the stirred slurry-like material enters the curing bucket 300. Because the curing roller 303 and the two arc-shaped closing plates 302 are tightly fitted, and the front and rear ends of the curing roller 303 are tightly fitted with the front and rear side walls of the curing bucket 300, respectively, the slurry will not leak out through the gaps in the curing roller 303.

[0049] It should be added that the inner surface of the arc-shaped closing plate 302, the outer surface of the curing roller 303 and the front and rear inner walls of the curing bucket 300 are all chrome-plated to improve their surface smoothness and wear resistance. The coating thickness is 0.03mm to 0.05mm.

[0050] A curing groove 304 is defined on the sidewall of the curing roller 303. A squeezing mechanism 400 is mounted on one of the arc-shaped closing plates 302. When the curing groove 304 faces the squeezing mechanism 400, the squeezing mechanism 400 extends into the curing groove 304 to compress the material within. The length of the curing groove 304 aligns with the axial direction of the curing roller 303 and is shorter than the length of the curing roller 303.

[0051] Furthermore, the curing roller 303 is equipped with a rotating shaft 305 at each end. The rotating shaft 305 extends through the side wall of the curing bucket 300 and rotates with the curing bucket 300. Drive wheels 306 are mounted on the ends of both rotating shafts 305. Universal wheels 107 are mounted on the four corners of the bottom of the curing box 100 via support legs. The bottom surfaces of the universal wheels 107 and the drive wheels 306 are flush. The rotating shaft 305 and the curing bucket 300 can be rotated together using bearings. The rotating shaft 305 passes through the side wall of the curing bucket 300 to form a rotating auxiliary structure, which keeps the axis of the curing roller 303 fixed during rotation. When a worker pushes the device forward, the drive wheels 306 contact the ground and roll, driving the rotating shaft 305 and the curing roller 303 to rotate synchronously.

[0052] A protective frame 307 is embedded in the interior of the curing tank 304. Figure 3 As shown, the protective frame 307 is a U-shaped plate structure with a smooth inner surface. The interior of the protective frame 307 forms a filling material area. The inner surface of the curing tank 304 and the inner surface of the protective frame 307 are also chrome-plated to improve surface smoothness and wear resistance.

[0053] The extrusion mechanism 400, on the other hand, includes a sliding seat 401, which is a frame structure with two through-holes. A sliding opening 308 is formed through an arc-shaped closed plate 302, and the sliding seat 401 slides within the sliding opening 308. It should be noted that the sliding seat 401 has sliding grooves on its front and rear sides, and the front and rear sidewalls of the sliding opening 308 have slide rails that slide in engagement with the grooves. The inner surface of the sliding seat 401 is flush with the inner surface of the arc-shaped closed plate 302. A T-shaped pressure plate 402 is provided within the sliding seat 401. The T-shaped pressure plate 402 slides radially with the sliding seat 401 along the curing roller 303. The length and width of the T-shaped pressure plate 402 are respectively adapted to the inner length and width of the protective frame 307. The sliding seat 401 can be implemented by bending and welding metal sheets to form a hollow frame structure. The through-hole design reduces overall weight and provides a sliding guide for the T-shaped pressure plate 402.

[0054] The specifications of the T-shaped pressing plate 402 match the internal dimensions of the sliding seat 401 , and the T-shaped pressing plate 402 is used to extend into the interior of the protective frame 307 to compress the slurry material therein.

[0055] In some embodiments of the present application, a hidden groove 309 is defined within the sliding opening 308, near the top end of the curved closure plate 302. An elastic cord 310 is positioned within the hidden groove 309, with the free end of the elastic cord 310 connected to the sliding seat 401. In its natural state, the elastic cord 310 is in a stretched state. The hidden groove 309 is a recessed space located in the top area of the sliding opening 308, which can be formed by milling the interior of the curved closure plate 302. It serves to accommodate the elastic cord 310, preventing any exposed structure from obstructing material flow or increasing the size of the device. The elastic cord 310 is a flexible connector with elastic recovery capabilities, specifically made of spring steel wound into a spiral structure or rubber. The contraction force generated by its stretched state can drive the sliding seat 401 back into its original position. In its natural state, the elastic cord 310 is in a stretched state when the device is not subjected to external forces. This means that when the device is not subjected to external forces, the elastic cord 310 is pre-stretched and taut, ensuring that one end of the sliding seat 401 abuts against the upper end of the sliding opening 308.

[0056] The T-shaped pressure plate 402 is provided with first guide posts 403 at both ends, and the sidewalls of the sliding seat 401 are provided with through-holes 404 for the first guide posts 403 to pass through. First guide slots 311 are provided on both the front and rear walls of the curing bucket 300, and the distal ends of the first guide posts 403 are movably embedded in the first guide slots 311. When the first guide posts 403 are located at the upper end of the first guide slots 311, the T-shaped pressure plate 402 is located within the sliding seat 401. When the first guide posts 403 are located at the lower end of the first guide slots 311, one end of the T-shaped pressure plate 402 extends into the interior of the protective frame 307. In other words, when the sliding seat 401 moves downward along the sliding opening 308, the first guide posts 403 also slide downward along the first guide slots 311, causing the T-shaped pressure plate 402 to extend inward and press into the protective frame 307.

[0057] In some embodiments of the present application, a movable cavity 312 is defined within the bottom wall of the protective frame 307, and a through cavity communicating with the movable cavity 312 is defined within both side walls of the protective frame 307. A movable plate 314 is elastically connected to the interior of the movable cavity 312 via an elastic member 313. Movable rods 315 are provided at two diagonal locations of the movable plate 314, and the movable rods 315 extend through the movable cavity 312. Positioning blocks 316 are provided at the outer ends of the movable rods 315, and positioning notches 405 are provided at the inner ends of the sliding seats 401 for inserting the positioning blocks 316. Specifically, the movable cavity 312 is defined within the bottom surface of the protective frame 307, and a cover is also provided on the bottom surface of the protective frame 307 for enclosing the movable cavity 312. One end of the through cavity extends to the top of the protective frame 307, and the two through cavities are also diagonally distributed.

[0058] It should be noted that the elastic member 313 is a spring. When the positioning block 316 is inserted into the positioning notch 405, the curing roller 303 drives the sliding seat 401 to move synchronously. When the positioning block 316 is released from the positioning notch 405, the sliding seat 401 returns to its initial position under the tension of the elastic cord 310. Furthermore, when the curing groove 304 moves to face the sliding seat 401, the two positioning blocks 316 precisely align with the two positioning notches 405.

[0059] Furthermore, second guide posts 317 are provided at both the front and rear ends of the movable plate 314. Openings for the second guide posts 317 are provided in the protective frame 307 and the curing roller 303. Second guide slots 318 are provided on both the front and rear walls of the curing bucket 300. The distal ends of the second guide posts 317 are movably inserted into the second guide slots 318. The second guide slots 318 are circular, with the portion of the second guide slot 318 facing the sliding opening 308 comprising a first arc segment 3181, and the remaining portion comprising a second arc segment 3182. When the second guide post 317 is located within the first arc segment 3181, the positioning block 316 is inserted into the positioning slot 405. When the second guide post 317 is located within the second arc segment 3182, the positioning block 316 is flush with the outer surface of the curing roller 303. A short arc transition is used at the junction between the first arc segment 3181 and the second arc segment 3182, enabling the second guide post 317 to slide smoothly within the second guide slot 318.

[0060] During the clockwise rotation of the curing roller 303, the second guide column 317 is always located in the second guide groove 318, and when the second guide column 317 enters the first arc segment 3181 from the second arc segment 3182, the positioning block 316 can extend outward to embed into the positioning groove 405; when the second guide column 317 enters the second arc segment 3182 from the first arc segment 3181, the positioning block 316 retracts into the active cavity, thereby realizing intermittent driving of the curing roller 303 on the extrusion mechanism 400.

[0061] In another embodiment of the present application, a protrusion 319 is provided inside the protective frame 307. The protrusion 319 is a rectangular block. The left and right side walls of the protrusion 319 are tightly fitted with the inner wall of the protective frame, and the front and rear side walls of the protrusion 319 are tightly fitted with the inner wall of the curing tank 304. The function is to prevent the slurry from entering the gap of the protrusion 319.

[0062] The ejection portion 319 is provided with a third guide post 320 at both the front and rear ends, and the curing roller 303 is provided with an opening for the third guide post 320 to pass through; it should be supplemented that the second guide post 317 and the third guide post 320 both pass through the same opening on the curing roller 303; the inner front and rear side walls of the curing bucket 300 are provided with a third guide groove 321, and the end of the third guide post 320 is movably embedded in the third guide groove 321; the third guide groove 321 is circular, and the downward portion of the third guide groove 321 is the third arc segment 3211, and the remaining portion is the fourth arc segment 3212; when the third guide post 320 is located inside the fourth arc segment 3212, one end of the ejection portion 319 is always in contact with the inner end of the curing groove 304; when the third guide post 320 passes through the inside of the third arc segment 3211, the ejection portion 319 first extends outward and then retracts inward to push the material inside the curing groove 304 out. That is, during the clockwise rotation of the curing roller 303 , each time when the curing groove 304 faces downward, the corresponding ejecting portion 319 can automatically perform an ejecting action, thereby pushing out the concrete block.

[0063] During the actual application of this embodiment, after the mixing is completed, the staff can push the equipment to move slowly on the flat ground; as the driving wheel 306 rolls, the curing roller 303 rotates synchronously; during the clockwise rotation of the curing roller 303, when the curing groove 304 is facing upward, the material falls into the curing groove 304, and then, the curing groove 304 gradually aligns with the sliding seat 401. When the two positioning blocks 316 are embedded in the positioning groove 405, the extrusion mechanism 400 can move synchronously with the curing roller 303. At this time, under the action of the first guide groove 311, the T-shaped pressure plate 402 is pressed into the curing groove 304, so that the loose material is squeezed into blocks.

[0064] When the solidification tank 304 rotates downward, the ejector 319 ejects the lumped material downward. This embodiment compresses the mixed concrete-like material into lumps to produce solidified material, facilitating transportation and filling. It also eliminates the need for secondary transfer, significantly improving the solidification efficiency of hazardous waste.

[0065] It is worth mentioning that the present application achieves complete demolding of the solidified material from the protective frame 307, and the residual material can be controlled to below 0.5%. In addition, it should be noted that the water-cement ratio in the present application is controlled between 0.35 and 0.45, and the slump of the slurry after stirring is 10 to 50 mm, where the water in the water-cement ratio refers to the sum of the mass of clean water, chemicals, and toxic waste liquids. After stirring, the concrete slurry in the present application has a certain plasticity, which is convenient for extrusion molding and can maintain shape stability.

[0066] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0067] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A solidification device for hazardous waste landfill, comprising a solidification box, a first feed hopper and a second feed hopper are provided on the top of the solidification box, a water inlet pipe and a drug inlet pipe are provided on the side wall of the solidification box, a discharge port is provided at the bottom of the solidification box, and a double-opening gate is provided at the bottom of the solidification box and at the discharge port, characterized in that: Also includes: A stirring mechanism, the stirring mechanism comprising a stirrer horizontally arranged in the middle section of the curing box; A curing bucket, wherein the curing bucket is arranged at the bottom of the curing box and is located at the discharge port, the curing bucket is a through structure at both ends, and a sliding inclined plate is symmetrically provided on the left and right sides of the inner top of the curing bucket, and an arc-shaped closing plate is provided between the bottom end of the sliding inclined plate and the bottom wall opening of the curing bucket, and the centers of the two arc-shaped closing plates coincide with each other, and a curing roller is provided between the two arc-shaped closing plates, and the two side walls of the curing roller are tightly fitted with the two arc-shaped closing plates respectively, and the front and rear ends of the curing roller are tightly fitted with the inner front and rear side walls of the curing bucket respectively, and the bottom of the curing roller extends to the bottom of the curing bucket; A curing groove is provided on the side wall surface of the curing roller, and an extrusion mechanism is provided on one of the arc-shaped closing plates; when the curing groove faces the extrusion mechanism, the extrusion mechanism is used to extend into the curing groove to compress the material in the curing groove.

2. The solidification device for hazardous waste landfill according to claim 1, characterized in that: The front and rear ends of the curing roller are both provided with a rotating shaft, the rotating shaft passes through the side wall of the curing bucket and rotates with the curing bucket, and the ends of the two rotating shafts are both provided with a driving wheel; Universal wheels are installed at the four corners of the bottom of the curing box through supporting feet, and the bottom surfaces of the universal wheels and the driving wheels are flush.

3. The solidification device for hazardous waste landfill according to claim 1, characterized in that: A protective frame is embedded in the interior of the curing tank. The protective frame is a U-shaped plate structure. The inner surface of the protective frame is a smooth plane. The interior of the protective frame constitutes a filling material area.

4. The solidification device for hazardous waste landfill according to claim 3, characterized in that: The extrusion mechanism includes a sliding seat, which is a frame structure with two ends connected. One of the arc-shaped closing plates is provided with a sliding opening, and the sliding seat is slidably arranged in the sliding opening. A T-shaped pressing plate is provided inside the sliding seat, and the T-shaped pressing plate and the sliding seat are slidably matched along the radial direction of the curing roller. The length and width of the T-shaped pressing plate are respectively adapted to the inner length and width of the protective frame.

5. The solidification device for hazardous waste landfill according to claim 4, characterized in that: A hidden groove is provided inside the sliding opening and close to one end of the top of the arc-shaped closing plate. An elastic rope is provided inside the hidden groove, and the free end of the elastic rope is connected to the sliding seat. In a natural state, the elastic rope is in a stretched state.

6. The solidification device for hazardous waste landfill according to claim 4, characterized in that: Both ends of the T-shaped pressure plate are provided with a first guide column, the side wall of the sliding seat is provided with a through hole for the first guide column to pass through, and the inner front and rear side walls of the curing bucket are both provided with a first guide groove, and the end of the first guide column is movably embedded in the first guide groove; When the first guide column is located at the inner upper end of the first guide groove, the T-shaped pressure plate is located inside the sliding seat; When the first guide column is located at the inner lower end of the first guide groove, one end of the T-shaped pressing plate extends into the inner side of the protective frame.

7. The solidification device for hazardous waste landfill according to claim 4, characterized in that: A movable cavity is provided in the bottom wall of the protective frame, and a through cavity communicating with the movable cavity is provided in both side walls of the protective frame. A movable plate is elastically connected to the interior of the movable cavity through an elastic member, and movable rods are provided at two diagonal portions of the movable plate, and the movable rods pass through the movable cavity; a positioning block is provided at the outer end of the movable rod, and a positioning slot for inserting the positioning block is provided at the inner end of the sliding seat.

8. The solidification device for hazardous waste landfill according to claim 7, characterized in that: Second guide posts are provided at both the front and rear ends of the movable plate, openings for the second guide posts to pass through are provided on the protective frame and the curing roller, and second guide grooves are provided on both the front and rear side walls of the interior of the curing bucket, and the ends of the second guide posts are movably embedded in the second guide grooves; The second guide groove is circular, the part of the second guide groove facing the sliding opening is the first arc segment, and the rest is the second arc segment. When the second guide column is located inside the first arc segment, the positioning block is embedded in the positioning groove; when the second guide column is located inside the second arc segment, the positioning block is flush with the outer surface of the curing roller.

9. The solidification device for hazardous waste landfill according to claim 3, characterized in that: The protection frame is provided with an ejection portion inside, the left and right side walls of the ejection portion are tightly fitted with the inner wall of the protection frame, and the front and rear side walls of the ejection portion are tightly fitted with the inner wall of the curing tank.

10. The solidification device for hazardous waste landfill according to claim 9, characterized in that: The front and rear ends of the ejection portion are each provided with a third guide post, the curing roller is provided with an opening for the third guide post to pass through, and the inner front and rear side walls of the curing bucket are each provided with a third guide groove, and the distal end of the third guide post is movably embedded in the third guide groove; The third guide groove is circular, the downward portion of the third guide groove is the third arc segment, and the remaining portion is the fourth arc segment. When the third guide column passes through the inside of the third arc segment, the ejection portion first extends outward and then retracts inward.

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