A solid waste treatment device for environmental engineering

Abstract

The application relates to the technical field of solid waste treatment, in particular to a solid waste treatment device for environmental protection engineering, which comprises a feeding table, an extrusion mechanism and a material receiving seat, the material receiving seat is provided with the extrusion mechanism at the upper end, and the extrusion mechanism is provided with the feeding table at the upper end; the driving assembly in the extrusion mechanism drives the stirring assembly to first downwardly stir and extrude the solid waste fragments from top to bottom, the telescopic assembly and the side pressing piece then extrude the solid waste fragments on the left and right sides for multiple times, and the discharging assembly finally pushes the solid waste fragments out of the discharging outlet, so that the solid waste fragments are fully extruded and formed and the discharging is compacted only through single driving, the extrusion forming effect is improved under the condition of cost reduction.

Description

TECHNICAL FIELD

[0001] The present application relates to solid waste treatment technical field, specifically to a kind of solid waste treatment device for environmental engineering. BACKGROUND

[0002] Environmental engineering refers to a series of engineering and technical measures to protect the environment, reduce pollution and restore ecological balance. Environmental engineering projects include wastewater treatment, waste gas treatment, solid waste treatment and recycling. Papermaking waste residue, clothing and shoe factory scraps in solid waste are usually treated by industrial solid waste extrusion molding. This method mainly pretreats the solid waste generated during industrial production by screening, crushing and drying, and then extrudes the crushed solid waste pieces through an extruder to form block-shaped products with certain shape and strength. The existing extrusion equipment only extrudes the solid waste pieces in a single direction, so it cannot fully extrude the solid waste pieces, resulting in that the extruded solid waste pieces are not compact enough and are easy to scatter during transportation, which cannot achieve good molding effect. SUMMARY

[0003] The technical problem to be solved is that the solid waste treatment device for environmental engineering provided by the present application can solve the problems pointed out in the background.

[0004] Technical scheme: To achieve the above purpose, the present application adopts the following technical scheme, a solid waste treatment device for environmental engineering, comprising a feeding table, an extrusion mechanism and a material receiving seat, the material receiving seat is provided with the extrusion mechanism at the upper end, and the extrusion mechanism is provided with the feeding table at the upper end.

[0005] The upper end face of the material receiving seat is provided with an annular groove near the outer wall, and the lower end face of the annular groove is provided with a discharge port. The feeding table is an annular structure with a diameter gradually decreasing from top to bottom.

[0006] The extrusion mechanism comprises an inner cylinder, which is installed at the center of the upper end face of the material receiving seat. The upper end of the inner cylinder is provided with a driving assembly, and the top of the driving assembly is provided with a stirring assembly. The material receiving seat is also provided with an outer cylinder coaxial with the inner cylinder. The outer cylinder and the inner cylinder form an annular cavity. A plurality of side pressing pieces are uniformly arranged in the annular cavity along the circumferential direction. The plurality of side pressing pieces divide the annular cavity into a plurality of extrusion cavities. The lower side of the outer wall of the outer cylinder is provided with a discharge outlet corresponding to the extrusion cavity. The lower part of the driving assembly is provided with a plurality of telescopic assemblies cooperating with the side pressing pieces to extrude the solid waste pieces. The plurality of telescopic assemblies are arranged from top to bottom. The lower part of the driving assembly is also provided with a discharging assembly for pushing out the extruded solid waste pieces.

[0007] Preferably, the driving assembly comprises a mounting circular plate installed at the upper end of the inner cylinder. An installation hole is formed in the middle of the mounting circular plate, and a double-action air cylinder is fixedly installed in the installation hole. The lower telescopic end of the double-action air cylinder is provided with a linkage circular rod.

[0008] Preferably, the tamping assembly comprises a disc, the lower end surface of the disc is installed on the upper telescopic end of the bidirectional cylinder, the outer wall of the disc is uniformly provided with long strip plates along the circumferential direction of the disc, and the lower end of each long strip plate is vertically provided with a lower tamping rod at a position corresponding to the extrusion cavity.

[0009] Preferably, the outer wall of the lower tamping rod is uniformly provided with a plurality of outward extending rods from top to bottom, and the outward extending rods are all arranged in a downward inclined manner.

[0010] Preferably, the side pressing member comprises a fixed plate, the inner wall of the outer cylinder is uniformly provided with the fixed plate along the circumferential direction of the outer cylinder at a position close to the upper end surface, the side, away from the outer cylinder, of the fixed plate is connected with the outer wall of the inner cylinder, the fixed plate is in a triangular structure, the lower end of the fixed plate and the upper end surface of the material collecting seat are both provided with an arc-shaped groove coaxial with the inner cylinder, the arc-shaped grooves on the upper side and the lower side are in one-to-one correspondence, two circular blocks are slidably arranged in each arc-shaped groove, a pressing plate is arranged between the outer cylinder and the inner cylinder between the upper and lower two circular blocks, the two ends of the pressing plate close to the outer cylinder and the inner cylinder are both in an arc-shaped structure matched with the outer cylinder and the inner cylinder, the two pressing plates are a group, a plurality of restoring springs are arranged between the two pressing plates in the same group in a top-to-bottom manner, and a triangular through groove is formed in the opposite surface of the pressing plate at a position below the restoring spring from the outer side to the inner side. The two horizontally opposite triangular through grooves are a group.

[0011] Preferably, the telescopic assembly comprises an outward extending block, the outer wall of the inner cylinder is provided with a sliding groove at a position corresponding to the triangular through groove, the outward extending block is slidably arranged in the sliding groove, the end of the outward extending block close to the inner cylinder is provided with a matching block, the two adjacent matching blocks are connected through a tensile spring, and the outer wall of the linkage round rod is fixedly provided with a driving block one at a position corresponding to the telescopic assembly. The driving block one is in a circular table structure with a diameter gradually decreasing from top to bottom, and the side close to the driving block one of the matching block is in an arc-shaped structure matched with the driving block one.

[0012] Preferably, the outward extending block is in a triangular prism shape with a width gradually increasing from the inner side of the inner cylinder to the outer side of the inner cylinder, and the outer wall of the outward extending block away from the inner cylinder is uniformly provided with a plurality of rolling balls.

[0013] Preferably, the discharging assembly comprises a pushing block, the outer wall of the outer cylinder in the extrusion cavity is provided with a through hole at a position below the outer wall, the pushing block is slidably arranged in the through hole, the pushing blocks in the inner cylinder are connected through a telescopic spring, the outer wall of the linkage round rod is fixedly provided with a driving block two at a position corresponding to the pushing block, the driving block two is in a circular table structure with a diameter gradually increasing from top to bottom, and the matching end of the pushing block matched with the driving block two is in an arc-shaped structure.

[0014] Beneficial effects:

[0015] 1. Through the driving assembly in the extrusion mechanism synchronously drives the tamping assembly to first from top to bottom tamps and extrudes the solid waste fragments, the extension assembly and the side pressure piece extrude the solid waste fragments on the left and right sides for multiple times, and the discharging assembly finally pushes and extrudes the solid waste fragments out of the discharging outlet, so that the solid waste fragments are extruded and formed in all aspects through single driving, the extrusion forming effect is improved under the condition of reducing the cost.

[0016] 2. The tamping assembly, the extension assembly and the discharging assembly on the linkage round rod are simultaneously driven by the bidirectional cylinder to move up and down synchronously, so that the lower tamping rod moves up and down to reciprocally tamp and compress the solid waste fragments in the feeding table downward into the extrusion cavity, the feeding speed is high, the solid waste fragments are extruded from top to bottom, the outer extension block drives the two pressure plates to move backward to cooperate with the pressure plates in the adjacent side pressure piece to extrude the solid waste fragments in the extrusion cavity on both sides, the solid waste fragments are extruded from top to bottom to the discharging outlet position, and the solid waste fragments are extruded on the side for multiple times, so that the compacting effect is improved and the solid waste fragments are not easy to be loose.

[0017] 3. The structure of the driving block two is opposite to that of the driving block one, when the pressure plate is restored to the original position after extruding the solid waste fragments on the side, the pushing block extrudes the solid waste fragments out of the discharging outlet through the through hole, the horizontal cross extrusion of the solid waste fragments is realized, the solid waste fragments do not interfere with each other, and the extrusion sufficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the present application.

[0019] Figure 2 It is a structural schematic view of the inner cylinder and the side pressure piece of the present application.

[0020] Figure 3 It is a front view of the present application.

[0021] Figure 4 It is an enlarged view of the A area of the present application. Figure 3

[0022] Figure 5 It is a B-B sectional view of the present application. Figure 3

[0023] It is a C-C sectional view of the present application. Figure 6 Figure 3 It is a D-D sectional view of the present application.

[0024] Figure 7 It is an enlarged view of the E area of the present application. Figure 3

[0025] Figure 8 It is an enlarged view of the E area of the present application. Figure 6 ​​​​

[0026] Figure 9 The structural schematic diagram of the extension block of the present application.

[0027] In the figure: 1, feeding table; 2, extrusion mechanism; 21, inner cylinder; 22, driving assembly; 221, mounting round plate; 222, bidirectional air cylinder; 223, linkage round rod; 23, tamping assembly; 231, disc; 232, long strip plate; 233, lower tamping rod; 234, extension rod; 24, outer cylinder; 25, side pressing piece; 251, fixed plate; 252, arc-shaped groove; 253, round block; 254, pressing plate; 255, restoring spring; 256, triangular through groove; 26, extrusion cavity; 27, discharging outlet; 28, telescopic assembly; 281, extension block; 282, sliding groove; 283, matching block; 284, tension spring; 285, driving block one; 286, ball; 29, discharging assembly; 291, pushing block; 292, telescopic spring; 293, driving block two; 3, material collecting seat; 31, annular groove. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0029] Please refer to Figure 1 The present application provides a technical solution: a solid waste treatment device for environmental protection engineering, comprising a feeding table 1, an extrusion mechanism 2 and a material collecting seat 3, wherein the extrusion mechanism 2 is installed on the upper end of the material collecting seat 3, and the feeding table 1 is installed on the upper end of the extrusion mechanism 2.

[0030] An annular groove 31 is formed on the upper end face of the material collecting seat 3 close to the outer wall, and a discharging port (not shown in the figure) is formed on the lower end face of the annular groove 31, the feeding table 1 is an annular structure with a diameter gradually decreasing from top to bottom, and the solid waste fragments conveyed from outside are collected and fed through the feeding table 1.

[0031] Please refer to Figure 2 , Figure 3The extrusion mechanism 2 comprises an inner cylinder 21 installed at the center of the upper end surface of the material receiving seat 3, the upper end of the inner cylinder 21 is provided with a driving assembly 22, the top of the driving assembly 22 is provided with a tamping assembly 23, the material receiving seat 3 is further provided with an outer cylinder 24 coaxial with the inner cylinder 21, an annular cavity is formed between the outer cylinder 24 and the inner cylinder 21, a plurality of side pressing pieces 25 are uniformly arranged in the circumferential direction of the annular cavity, the plurality of side pressing pieces 25 divide the annular cavity into a plurality of extrusion cavities 26, a discharge outlet 27 is formed in the lower side of the outer wall of the outer cylinder 24 corresponding to the position of the extrusion cavity 26, a plurality of telescopic assemblies 28 for extruding the solid waste fragments are arranged at the lower part of the driving assembly 22 and matched with the side pressing pieces 25, the plurality of telescopic assemblies 28 are arranged from top to bottom, and a discharging assembly 29 for pushing out the extruded solid waste fragments is arranged at the lower part of the driving assembly 22.

[0032] Please refer to Figure 3 The driving assembly 22 comprises a mounting circular plate 221 installed at the upper end of the inner cylinder 21, a mounting hole is formed in the middle of the mounting circular plate 221, a double-acting cylinder 222 is fixedly installed in the mounting hole, a linkage circular rod 223 is installed at the lower telescopic end of the double-acting cylinder 222, and the tamping assembly 23 is installed at the upper telescopic end of the double-acting cylinder 222.

[0033] Please refer to Figure 1 , Figure 3 The tamping assembly 23 comprises a disc 231 installed at the upper telescopic end of the double-acting cylinder 222, a plurality of long strip plates 232 are uniformly installed on the outer wall of the disc 231 in the circumferential direction, a lower tamping rod 233 is vertically installed at the lower end of the long strip plate 232 corresponding to the position of the extrusion cavity 26, a plurality of outer extension rods 234 are arranged from top to bottom on the outer wall of the lower tamping rod 233, the outer extension rods 234 are all arranged in an inclined downward manner, the area and the downward pressure of the lower tamping are increased through the plurality of inclined outer extension rods 234, the plurality of long strip plates 232 on the disc 231 are synchronously moved up and down under the driving of the double-acting cylinder 222, the lower tamping rod 233 is reciprocatingly moved up and down, the solid waste fragments in the material table 1 are tamped and compressed downward into the extrusion cavity 26, so that the feeding can be quickly realized, and the solid waste fragments can be extruded from top to bottom.

[0034] Please refer to Figure 2 , Figure 3 , Figure 5 , Figure 7The side pressing piece 25 comprises a fixed plate 251, the inner wall of the outer cylinder 24 is uniformly provided with the fixed plate 251 near the upper end face along the circumferential direction, the fixed plate 251 is connected with the outer wall of the inner cylinder 21 away from the outer cylinder 24, the fixed plate 251 is a triangular structure, the lower end of the fixed plate 251 and the upper end face of the material receiving seat 3 are both provided with an arc-shaped groove 252 coaxial with the inner cylinder 21, the upper arc-shaped groove 252 corresponds to the lower arc-shaped groove 252 one by one, two circular blocks 253 are slidably arranged in the arc-shaped groove 252, a pressing plate 254 is arranged between the outer cylinder 24 and the inner cylinder 21, the two ends of the pressing plate 254 near the outer cylinder 24 and the inner cylinder 21 are both arc-shaped and matched with the outer cylinder 24 and the inner cylinder 21, the two pressing plates 254 between the upper and lower arc-shaped grooves 252 form a group, a plurality of restoring springs 255 are arranged between the two pressing plates 254 in the same group, triangular through grooves 256 are formed in the opposite side of the pressing plate 254 below the restoring spring 255 from the outside to the inside, and the two horizontal triangular through grooves 256 form a group.

[0035] Please refer to Figure 5 、 Figure 6 、 Figure 8 The telescopic assembly 28 comprises an outer extension block 281, a sliding groove 282 is formed in the outer wall of the inner cylinder 21 corresponding to the triangular through groove 256, and the outer extension block 281 is slidably arranged in the sliding groove 282, the outer extension block 281 is a triangular prism with gradually increasing width from the inside of the inner cylinder 21 to the outside of the inner cylinder 21, the outer wall of the outer extension block 281 away from the inner cylinder 21 is uniformly provided with a plurality of rolling balls 286, the friction between the outer extension block 281 and the triangular through groove 256 is reduced by the rolling balls 286, and the abrasion is reduced, one end of the outer extension block 281 near the inner cylinder 21 is provided with a matching block 283, the two adjacent matching blocks 283 are connected by a tensile spring 284, a driving block one 285 is fixedly and sleevedly arranged on the outer wall of the linkage round rod 223 corresponding to the telescopic assembly 28, the driving block one 285 is a circular table structure with gradually decreasing diameter from top to bottom, and the side of the matching block 283 near the driving block one 285 is arc-shaped and matched with the driving block one 285; during work, when the linkage round rod 223 is driven by the bidirectional air cylinder 222 to move up and down reciprocatingly, the driving block one 285 is also driven to move up and down synchronously, the outer extension block 281 can slide reciprocatingly in the sliding groove 282 by cooperation of the driving block one 285, the matching block 283 and the tensile spring 284, and the outer extension block 281 enters the triangular through groove 256 when it is extended, the two pressing plates 254 in the same group are driven to move away from each other due to the shape of the outer extension block 281, so that the pressing plates 254 in the adjacent side pressing piece 25 are matched to press the solid waste fragments in the extrusion cavity 26 from both sides, and the solid waste fragments are extruded from top to bottom to the discharging outlet 27 position, so that the solid waste fragments are extruded from the side for many times, thereby improving the pressing effect and preventing the solid waste fragments from loosening.

[0036] Please refer to Figure 4 、 Figure 6 The blanking assembly 29 comprises a pushing block 291, a through hole is formed in the lower side of the outer wall of the outer cylinder 24 in the extrusion cavity 26, the pushing block 291 is slidably arranged in the through hole, the pushing blocks 291 in the inner cylinder 21 are connected by the extension springs 292, the driving block two 293 is fixedly installed on the outer wall of the linkage round rod 223 at a position corresponding to the pushing block 291, the driving block two 293 is a circular truncated cone structure with a diameter gradually increasing from top to bottom, the pushing block 291 is matched with the driving block two 293, and the matched end of the pushing block 291 is arc-shaped; in working, the bidirectional cylinder 222 drives the linkage round rod 223 to move up and down reciprocatingly, and also drives the driving block two 293 to move up and down, because the structure of the driving block two 293 is opposite to that of the driving block one 285, therefore, when the pressing plate 254 in the extension assembly 28 performs side extrusion, the pushing block 291 is located in the through hole and does not protrude, when the bidirectional cylinder 222 drives the pressing plate 254 to return to the original position, the driving block two 293 extrudes the pushing block 291, so that the pushing block 291 protrudes from the through hole and extrudes and pushes the solid waste fragments out of the blanking outlet 27.

[0037] In specific working, first, the industrial solid waste needs to be pretreated, such as screening, crushing and drying, the solid waste fragments conveyed from the outside after treatment are collected and fed on the feeding table 1, the bidirectional cylinder 222 is started, simultaneously driving the tamping assembly 23 and the linkage round rod 223 to move up and down synchronously, the extension of the bidirectional cylinder 222 drives the long strip plate 232 on the disc 231 to move up and down synchronously, so that the lower tamping rod 233 moves up and down reciprocatingly, tamping and compressing the solid waste fragments in the feeding table 1 downward into the extrusion cavity 26, so that the feeding can be fast, and the solid waste fragments can be extruded from top to bottom.

[0038] When the bidirectional air cylinder 222 drives the linkage round rod 223 to move up and down, the driving block one 285 moves up and down, and the outer extension block 281 can move up and down in the sliding groove 282 through the cooperation of the driving block one 285, the matching block 283 and the extension spring 284, and the outer extension block 281 enters the triangular groove 256 when it is extended, and the two pressing plates 254 in the same group move away from each other and cooperate with the pressing plates 254 in the adjacent side pressing piece 25 to press the solid waste fragments in the extrusion cavity 26 from both sides, and the solid waste fragments are pressed from top to bottom to the position of the discharge outlet 27, and are pressed from the side for many times, thereby improving the pressing effect and preventing loosening. When the bidirectional air cylinder 222 drives the linkage round rod 223 to move up and down, the driving block two 293 also moves up and down, and the structure of the driving block two 293 is opposite to that of the driving block one 285, so that when the pressing plate 254 in the telescopic assembly 28 is pressed from the side, the pushing block 291 is located in the through hole and does not extend out, and when the bidirectional air cylinder 222 drives the pressing plate 254 to return to the original position, the driving block two 293 presses the pushing block 291, so that the pushing block 291 extends out of the through hole and presses the solid waste fragments out of the discharge outlet 27 and into the annular groove 31 of the material receiving seat 3, and the material is discharged through the discharge port. Through single driving, the solid waste fragments are pressed from below, pressed from left and right, and pressed from front to back, and the effect of extrusion molding is improved, and the loosening is reduced.

[0039] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, inclusion of an element in a list of elements does not exclude other identical elements not expressly listed or inherent to the process, method, article, or apparatus.

[0040] While embodiments of the application have been shown and described, it is to be understood that the application is not limited to the details of the embodiments described, since numerous modifications and substitutions can be made without departing from the spirit and scope of the present application, which is defined by the appended claims and their equivalents.

Claims

1. An environmental engineering solid waste treatment device, comprising a feeding table (1), an extrusion mechanism (2) and a material receiving seat (3), characterized in that: The upper end of the material collecting seat (3) is provided with an extrusion mechanism (2), and the upper end of the extrusion mechanism (2) is provided with a feeding table (1); An annular groove (31) is formed in the upper end face of the material collecting seat (3) near the outer wall, and a discharge port is formed in the lower end face of the annular groove (31); and the feeding table (1) is an annular structure with a diameter gradually decreasing from top to bottom; The extrusion mechanism (2) comprises an inner cylinder (21) installed at the center of the upper end face of the material collecting seat (3), a driving assembly (22) installed at the upper end of the inner cylinder (21), a stirring assembly (23) arranged at the top of the driving assembly (22), an outer cylinder (24) coaxial with the inner cylinder (21) and installed on the material collecting seat (3), an annular cavity formed between the outer cylinder (24) and the inner cylinder (21), a plurality of side pressing pieces (25) uniformly arranged in the annular cavity along the circumferential direction of the annular cavity, the plurality of side pressing pieces (25) separating the annular cavity into a plurality of extrusion cavities (26), a discharge outlet (27) formed in the outer wall of the outer cylinder (24) at a position corresponding to the extrusion cavity (26), a plurality of telescopic assemblies (28) arranged below the driving assembly (22) and matched with the side pressing pieces (25) to extrude the solid waste fragments, the plurality of telescopic assemblies (28) arranged from top to bottom, and a discharging assembly (29) arranged below the driving assembly (22) to push out the extruded solid waste fragments; The driving assembly (22) comprises a mounting circular plate (221) mounted at the upper end of the inner cylinder (21), a mounting hole formed in the middle of the mounting circular plate (221), and a double-action pneumatic cylinder (222) fixedly installed in the mounting hole, a linkage circular rod (223) installed at the lower telescopic end of the double-action pneumatic cylinder (222), and the stirring assembly (23) installed at the upper telescopic end of the double-action pneumatic cylinder (222); The side pressing piece (25) comprises a fixed plate (251) uniformly installed on the inner wall of the outer cylinder (24) near the upper end face along the circumferential direction of the outer cylinder (24), the fixed plate (251) connected to the outer wall of the inner cylinder (21) away from the outer cylinder (24), the fixed plate (251) in a triangular structure, an arc-shaped groove (252) coaxial with the inner cylinder (21) formed in the lower end of the fixed plate (251) and the upper end face of the material collecting seat (3), the upper arc-shaped groove (252) corresponding to the lower arc-shaped groove (252) one by one, two circular blocks (253) slidably installed in the arc-shaped groove (252), a pressing plate (254) installed between the outer cylinder (24) and the inner cylinder (21) between the upper and lower symmetric circular blocks (253), the two ends of the pressing plate (254) near the outer cylinder (24) and the inner cylinder (21) in an arc-shaped structure matched with the outer cylinder (24) and the inner cylinder (21), the two pressing plates (254) in a group, a plurality of restoring springs (255) arranged between the two pressing plates (254) in the same group from top to bottom, and a triangular through groove (256) penetrating from the outer side to the inner side formed in the opposite surface of the pressing plate (254) at the lower side of the restoring spring (255); and the two horizontally opposite triangular through grooves (256) form a group. The telescopic assembly (28) comprises an outer extension block (281), a sliding groove (282) is uniformly and penetratingly arranged on the outer wall of the inner cylinder (21) corresponding to the triangular through grooves (256), the outer extension block (281) is slidingly arranged in the sliding groove (282), the outer extension block (281) is provided with a matching block (283) near one end of the inner cylinder (21), the adjacent two matching blocks (283) are connected through the tension spring (284), the driving block one (285) is fixedly and sleevedly arranged on the outer wall of the linkage round rod (223) corresponding to the telescopic assembly (28), the driving block one (285) is a circular table structure with a diameter gradually decreasing from top to bottom, and the side of the matching block (283) close to the driving block one (285) is in an arc shape matched with the driving block one (285).

2. The solid waste treatment device for environmental protection engineering according to claim 1, characterized in that: The stirring assembly (23) comprises a disc (231), the disc (231) is arranged on the upper telescopic end of the double-way cylinder (222), the disc (231) is uniformly provided with a long strip plate (232) along the circumferential direction, and the lower end of the long strip plate (232) is vertically provided with a lower rammer (233) corresponding to the extrusion cavity (26).

3. The solid waste treatment device for environmental protection engineering according to claim 2, characterized in that: The outer extension rod (234) is arranged in an inclined downward manner.

4. The solid waste treatment device for environmental protection engineering according to claim 1, characterized in that: The outer extension block (281) is in a triangular prism shape with a gradually increasing width from the inner side of the inner cylinder (21) to the outer side of the inner cylinder (21), and the outer wall of the side, away from the inner cylinder (21), of the outer extension block (281) is uniformly provided with a ball (286).

5. The solid waste treatment device for environmental protection engineering according to claim 1, characterized in that: The discharging assembly (29) comprises a pushing block (291), the outer wall of the outer cylinder (24) in the extrusion cavity (26) is provided with a through hole on the lower side, the pushing block (291) is slidingly arranged in the through hole, the pushing blocks (291) in the inner cylinder (21) are connected through the tension spring (292), the driving block two (293) is fixedly and sleevedly arranged on the outer wall of the linkage round rod (223) corresponding to the pushing block (291), the driving block two (293) is a circular table structure with a gradually increasing diameter from top to bottom, the pushing block (291) is matched with the driving block two (293), and the matching end of the pushing block (291) is in an arc shape.

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