Residue environment-friendly treatment device for dimethyl sulfate production

Abstract

The invention discloses an environment-friendly residue treatment device for dimethyl sulfate production, and relates to the technical field of environment-friendly residue treatment, the environment-friendly residue treatment device comprises a treatment box, and two connecting pipes are symmetrically communicated in the treatment box; according to the device, the pressing assembly is matched with the stirring part, residual liquid can be squeezed out while being subjected to neutralization reaction with ammonia water immediately while being stirred and compacted, meanwhile, in the process that solid residues are compacted by the pressing hollow plate part, filter cloth at the bottom of the pressing hollow plate part continuously moves, and the solid residues are compacted by the pressing hollow plate part. The problem that solid residues are accumulated at the same position of the filter cloth for a long time to cause blockage is solved, and the problems that in the prior art, a mode of fixedly installing the filter cloth is adopted, the fixed cloth cover is used for a long time, residues are accumulated and blocked seriously, residual liquid in the solid residues cannot be completely discharged, and the solid residues cannot be completely compacted are solved. Therefore, the risk of blocking when the solid residues are compacted is avoided, and meanwhile, the automation and the stability of environment-friendly technical treatment equipment are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of residue environmental protection treatment, and more specifically, to an environmental protection treatment device for residues in the production of dimethyl sulfate. Background Art

[0002] The residue treatment device for the production of dimethyl sulfate refers to a complete set of industrial devices that use ammonia water as a neutralizing agent to chemically neutralize the residual acidic waste residues or waste liquids after the production of dimethyl sulfate. Its core principle is to neutralize the strong acid in the residue with ammonia water to generate soluble ammonium salts and recover them, so as to achieve the purpose of environmental protection and resource utilization; For the existing residue treatment device for the production of dimethyl sulfate, usually an additional device is first used to drain the residual liquid in the solid residue, and then it is uniformly sent to the residue treatment device for neutralization treatment with ammonia water. This method has relatively cumbersome steps and takes a long time. Moreover, when squeezing the solid residue, the filter cloth of the existing technology is usually fixedly installed, and the long-term use of the fixed cloth surface will cause serious residue accumulation, thus blocking the filter cloth; And when draining the residual liquid, a single pore size is used for filtration. This method will cause the initial filtration speed to be too fast and the filtration speed cannot be controlled. During the process of compacting the solid residue, too much residual liquid is discharged from the solid residue in the initial stage, resulting in insufficient and thorough reaction between the ammonia water and it, thus reducing the treatment efficiency of the residues in the production of dimethyl sulfate; At the same time, the existing downward pressure hollow plate does not take anti-warping measures when compacting the solid residue. Due to the hollow structure inside the downward pressure hollow plate and the uniformly arranged filter holes, the effective load-bearing cross-sectional area of the plate body is reduced. When the solid residue is compacted by the downward pressure hollow plate, and the water in the residue is squeezed out, a reverse water pressure will be generated, which indirectly acts on the plate body, and the downward pressure hollow plate on both sides of the plate will warp. Since the downward pressure hollow plate warps, the edge of the solid residue will be unevenly stressed, further resulting in the inability to effectively drain the residual liquid in the solid residue, reducing the recovery and treatment efficiency of the environmental protection technology treatment equipment.

[0003] To solve the above problems, the inventor has proposed an environmental protection treatment device for residues in the production of dimethyl sulfate. Summary of the Invention

[0004] To solve the above technical problems, an environmental protection treatment device for residues in the production of dimethyl sulfate is provided. This technical solution solves the problems raised in the above background art; To achieve the above object, the present invention can adopt the following technical solutions: The present invention provides an environmental protection treatment device for residues in the production of dimethyl sulfate, including a treatment tank, two connecting pipes are symmetrically communicated inside the treatment tank, and a stirrer is installed inside the treatment tank; A pressing-down component is arranged on the processing box. The pressing-down component includes a hydraulic cylinder fixedly installed on the processing box. The output end of the hydraulic cylinder is fixedly connected with a hollow pressing plate. An inner fixing plate is fixedly connected to the inner cavity of the hollow pressing plate. Four first springs are symmetrically and fixedly connected to the fixing plate. Two of the first springs on the same side are each fixedly connected to an adjusting plate. Filter holes are evenly arranged on the hollow pressing plate and the two adjusting plates. A round-headed rod is fixedly connected to the outer wall of each adjusting plate. Two combined grooves are symmetrically arranged on the inner cavity wall of the processing box.

[0005] Preferably, the hollow pressing plate is slidably connected to the processing box. The two adjusting plates are both slidably connected to the hollow pressing plate. The two round-headed rods are both slidably connected to the hollow pressing plate. The two round-headed rods are both adapted to the adjacent combined grooves. Each of the two combined grooves is composed of an inclined groove and two straight grooves.

[0006] Preferably, a filtering component is arranged on the hollow pressing plate. The filtering component includes a sealing chamber fixedly connected to the hollow pressing plate. Two synchronous wheels are symmetrically and rotatably connected in the sealing chamber. Plug rods are fixedly connected to both of the synchronous wheels. A rubber gear is fixedly connected to the outer surface of one of the plug rods. Two cover plates are symmetrically and fixedly connected to the hollow pressing plate. A plurality of moving tooth grooves are evenly arranged on the inner cavity wall of the processing box.

[0007] Preferably, the two synchronous wheels are connected by a synchronous belt. The two plug rods are both rotatably connected to the sealing chamber. The rubber gear meshes with the moving tooth grooves.

[0008] Preferably, the two plug rods are both cylindrical.

[0009] Preferably, an anti-warping-edge component is arranged on the outside of the processing box. The anti-warping-edge component includes fixed bases. There are two fixed bases symmetrically arranged. Electric push rods are fixedly installed on both of the fixed bases. The telescopic end of each electric push rod is fixedly connected with a moving plate. A plurality of cavity cylinders are symmetrically and fixedly connected to each moving plate. A telescopic rod is fixedly connected to each cavity cylinder. A second spring is sleeved on each telescopic rod. A limiting block is fixedly connected to each telescopic rod. A plurality of square holes are symmetrically arranged in the inner cavity of the processing box. Two guide rails are symmetrically and fixedly connected to each fixed base.

[0010] Preferably, two sliding grooves are symmetrically arranged in the inner cavity of each cavity cylinder. Two stoppers are symmetrically and fixedly connected to the outer wall of each limiting block, and the stoppers are adapted to the adjacent sliding grooves.

[0011] Preferably, each of the moving plates is slidably connected to the adjacent guide rail, each of the second springs is fixedly connected to the adjacent cavity cylinder and the limit block, each of the limit blocks is slidably connected to the adjacent cavity cylinder, each of the limit blocks is adapted to the adjacent square hole, and a sealing gasket is provided at the connection between each square hole and the adjacent limit block.

[0012] As described above, the advantages of the present invention are: In the present device, the pressing component cooperates with the stirring component, and while stirring and compacting, it can achieve that the residual liquid is squeezed out and immediately undergoes a neutralization reaction with ammonia water. At the same time, during the process of compacting the solid residue by the pressing hollow plate component, the filter cloth at the bottom of the pressing hollow plate component continuously moves, avoiding the problem that the solid residue accumulates at the same position of the filter cloth for a long time and causes blockage. This solves the problem in the prior art that when using a fixed installation method for the filter cloth, the fixed cloth surface is used for a long time, resulting in serious residue accumulation and blockage, and the flux decreases over time, leading to the inability to completely discharge the residual liquid in the solid residue, and thus unable to completely compact the solid residue. In this way, not only the neutralization efficiency of the production residue is improved, but also the risk of blockage during the compaction of the solid residue is avoided, and at the same time, the automation and stability of the environmental protection technology treatment equipment are improved; Compared with the prior art that uses a single pore size for filtration, during the process of compacting the solid residue in the filtration component of the present device, the pore size of the filtration holes changes from small to large, thereby effectively controlling the filtration speed, and further enabling the ammonia water and the residual liquid to react more fully and thoroughly. This solves the problem that during the process of compacting the solid residue, when filtering with a single pore size, the initial filtration speed is too fast, resulting in excessive discharge of the residual liquid from the solid residue at the initial stage and the inability to react fully with the ammonia water. In this way, not only the treatment efficiency of the production residue is improved, but also the working stability of the environmental protection technology treatment equipment is improved; The anti-warping edge component in the present device can limit the pressing hollow plate component during the process of compacting the solid residue, enabling the solid residue to be evenly stressed, thereby avoiding the situation that the pressing component warps and causes force deviation during the compaction of the solid residue. This solves the problem in the prior art that due to the warping phenomenon of the pressing hollow plate during the compaction of the solid residue, the edge of the solid residue is insufficiently stressed, resulting in more residual liquid still remaining in the solid residue. In this way, not only can the solid residue be better compacted, thereby better discharging the residual liquid, but also the recovery and treatment efficiency of the environmental protection technology treatment equipment is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a front three-dimensional schematic diagram of the overall structure shown in the present invention; Figure 2 is a back three-dimensional schematic diagram of the overall structure shown in the present invention; Figure 3 is a three-dimensional schematic diagram of the internal section of the treatment tank shown in the present invention; Figure 4 Schematic three-dimensional view of the hollow pressing plate and components related to the filter holes shown in the present invention; Figure 5 Schematic three-dimensional view of the hollow pressing plate and components related to the adjusting plate shown in the present invention; Figure 6 Schematic plan view of the staggered arrangement of the filter holes on the hollow pressing plate and the adjusting plate shown in the present invention; Figure 7 Schematic three-dimensional view of the round head rod and components related to the combined groove shown in the present invention; Figure 8 Schematic three-dimensional view of the internal section of the sealed cabin shown in the present invention; Figure 9 Schematic three-dimensional view of the limiting block and components related to the square hole shown in the present invention; Figure 10 Schematic exploded three-dimensional view of the limiting block and the processing box shown in the present invention; Figure 11 Schematic three-dimensional view of the cavity cylinder and components related to the limiting block shown in the present invention; Figure 12 Schematic three-dimensional view of the internal section of the cavity cylinder shown in the present invention; Figure 13 Schematic plan view of the installation of the filter cloth core shaft shown in the present invention.

[0014] Among them, the reference numerals in the present invention are: 1. Processing box; 2. Connecting pipe; 3. Stirrer; Lower pressing assembly: 41. Hydraulic cylinder; 42. Hollow pressing plate; 43. Fixed plate; 44. First spring; 45. Adjusting plate; 46. Filter hole; 47. Round head rod; 48. Combined groove; Filter assembly: 51. Sealed cabin; 52. Synchronous pulley; 53. Insert rod; 54. Rubber gear; 55. Cover plate; 56. Moving tooth groove; Anti-warping edge assembly: 61. Fixed base; 62. Electric push rod; 63. Moving plate; 64. Cavity cylinder; 65. Expansion rod; 66. Second spring; 67. Limiting block; 68. Square hole; 69. Guide rail. Specific implementation manners

[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0016] Embodiments provided by the present invention will be elaborated in detail below: An environmental protection treatment device for residues in the production of dimethyl sulfate, as Figure 1 and Figure 2 shown, includes a treatment tank 1. An ammonia water inlet pipe is provided on the upper surface of the treatment tank 1. The ammonia water inlet pipe is used to transport ammonia water for neutralizing production residues, and the ammonia water inlet pipe is communicated with the inside of the treatment tank 1. Two connecting pipes 2 are symmetrically communicated in the treatment tank 1. The two connecting pipes 2 are arranged side by side up and down. The lower connecting pipe 2 is used to transport production residues to be treated, and the upper connecting pipe 2 is used to transport the liquid after ammonia water neutralization treatment. A hatch is provided on the treatment tank 1, and the staff can open the hatch to recover the solid production residues after pressure filtration. A stirrer 3 is installed in the treatment tank 1. The stirrer 3 is a prior art and will not be elaborated here too much; As Figures 3 to 6 shown, a pressing-down component is provided on the treatment tank 1. The pressing-down component includes a hydraulic cylinder 41 fixedly installed on the treatment tank 1. The output end of the hydraulic cylinder 41 is fixedly connected with a hollow pressing plate 42. The hollow pressing plate 42 is located inside the treatment tank 1. The central position of the inner cavity wall of the hollow pressing plate 42 is fixedly connected with a fixing plate 43. Four first springs 44 are symmetrically and fixedly connected to the fixing plate 43. The four first springs 44 are evenly distributed on both sides of the fixing plate 43. One end of the two first springs 44 on the same side away from the fixing plate 43 is fixedly connected with an adjusting plate 45 respectively. Filter holes 46 are evenly formed in the hollow pressing plate 42 and the two adjusting plates 45. Referring to Figure 6 , the filter holes 46 formed in the hollow pressing plate 42 and the filter holes 46 formed in the adjusting plates 45 are staggered in the initial state. A round head rod 47 is fixedly connected to one side of each adjusting plate 45 away from the first spring 44. Two combined grooves 48 are symmetrically formed on one side of the inner cavity of the treatment tank 1 close to the round head rod 47.

[0017] Furthermore, as Figure 3 , Figure 5 and Figure 6 shown, the hollow pressing plate 42 is vertically slidably connected with the treatment tank 1. The two adjusting plates 45 are both horizontally slidably connected with the inner cavity of the hollow pressing plate 42. The two round head rods 47 are both horizontally slidably connected with the hollow pressing plate 42, and the two round head rods 47 penetrate through the hollow pressing plate 42. The two round head rods 47 are both adapted to the adjacent combined grooves 48. Each of the two combined grooves 48 is composed of an inclined groove and two straight grooves. The two straight grooves are respectively located on the upper and lower sides of the inclined groove. The parts of the two round head rods 47 penetrating through the hollow pressing plate 42 are both in contact with the inner wall of the upper straight groove of the adjacent combined groove 48.

[0018] Furthermore, as Figure 3 , Figure 7 and Figure 8As shown, a filtering component is provided on the hollow pressing plate 42. The filtering component includes a sealing chamber 51 fixedly connected to the upper surface of the hollow pressing plate 42. Two synchronous wheels 52 are symmetrically and rotatably connected in the sealing chamber 51. Plug rods 53 are fixedly connected to both of the two synchronous wheels 52. A rubber gear 54 is fixedly connected to the outer surface of one of the plug rods 53. Two cover plates 55 are symmetrically and fixedly connected to one side of the hollow pressing plate 42 close to the sealing chamber 51. The two cover plates 55 are respectively located on both sides of the upper surface of the hollow pressing plate 42 and protrude from the outer wall of the hollow pressing plate 42. The bottoms of the two cover plates 55 are open. Both of the two plug rods 53 are located inside the adjacent cover plates 55. A plurality of moving tooth grooves 56 are equidistantly formed on one side of the inner cavity of the processing box 1 close to the rubber gear 54.

[0019] Further, as Figure 7 and Figure 8 shown, the two synchronous wheels 52 are connected by a synchronous belt for transmission, so that the two plug rods 53 can rotate in the same direction simultaneously. Both of the two plug rods 53 are rotatably connected to the sealing chamber 51. The rubber gear 54 meshes with the moving tooth grooves 56. When the hollow pressing plate 42 moves vertically, the moving tooth grooves 56 can make the rubber gear 54 rotate clockwise or counterclockwise.

[0020] Further, as Figure 8 shown, both of the two plug rods 53 are arranged in a cylindrical shape, and the plug rods 53 are used for installing filter cloth mandrels. The two sides of the strip-shaped filter cloth are respectively fixed on the outer surfaces of the two mandrels, and the strip-shaped filter cloth is wound around the outer surface of one of the mandrels. The staff can insert the two mandrels into the plug rods 53 so that the filter cloth passes through the bottom of the hollow pressing plate 42. As Figure 4 and Figure 13 shown, the filter cloth is made to fit the bottom surface of the hollow pressing plate 42, thus completing the installation of the filter cloth. The filter cloth is used for filtering solid residues during the pressure filtration of production residues.

[0021] Further, as Figures 9 to 12As shown in the figure, an anti-warping edge component is arranged outside the processing box 1. The anti-warping edge component includes a fixed base 61. There are two fixed bases 61 symmetrically arranged. The two fixed bases 61 are distributed on both sides of the processing box 1. Electric push rods 62 are fixedly installed on the upper surfaces of the two fixed bases 61. The telescopic ends of each electric push rod 62 are fixedly connected with a moving plate 63. On one side of each moving plate 63 close to the processing box 1, a plurality of cavity cylinders 64 are symmetrically and fixedly connected. The inner cavity walls of each cavity cylinder 64 are fixedly connected with a telescopic rod 65. A second spring 66 is sleeved outside each telescopic rod 65. The telescopic ends of each telescopic rod 65 are fixedly connected with a limiting block 67. One end of the limiting block 67 passing through the adjacent cavity cylinder 64 is located inside the processing box 1. A plurality of square holes 68 are symmetrically opened in the inner cavity of the processing box 1, and the limiting block 67 passes through the square hole 68. The distance between the two square holes 68 is equal to the thickness formed by the cover plate 55 and the hollow pressing plate 42. On one side of each fixed base 61 close to the electric push rod 62, two guide rails 69 are symmetrically and fixedly connected.

[0022] Further, as Figure 12 shown, two chutes are symmetrically opened in the inner cavity of each cavity cylinder 64. Two stoppers are symmetrically and fixedly connected to the outer wall of each limiting block 67, and the stoppers are adapted to the adjacent chutes. Since each stopper is located at the end of the adjacent chute, the initial state of each second spring 66 is a compressed state.

[0023] Further, as Figure 9 and Figure 10 shown, each moving plate 63 is horizontally slidably connected to the adjacent guide rail 69. Both ends of each second spring 66 are fixedly connected to the adjacent cavity cylinder 64 and the limiting block 67. Each limiting block 67 is horizontally slidably connected to the adjacent cavity cylinder 64. Each limiting block 67 is adapted to the adjacent square hole 68, and a sealing gasket is arranged at the connection between each square hole 68 and the adjacent limiting block 67. After setting the sealing gasket, when the limiting block 67 moves along the adjacent square hole 68, the liquid in the processing box 1 will not leak out.

[0024] During operation: The device can stir and compact the solid residue in the production residue while synchronously neutralizing it. The following are the detailed steps: The production residue of dimethyl sulfate includes solid residue and residual liquid. The staff opens the lower connecting pipe 2 and transports the production residue of dimethyl sulfate to the inside of the processing box 1 through the lower connecting pipe 2. After all the production residue is transported, the lower connecting pipe 2 is closed. Subsequently, the ammonia water inlet pipe on the upper surface of the processing box 1 is opened, and the prepared ammonia water is transported to the inside of the processing box 1. After all the ammonia water is transported, the ammonia water inlet pipe is closed, and the stirrer 3 is started through the controller to mix the ammonia water with the production residue for neutralization treatment; Subsequently, the staff starts the hydraulic cylinder 41 through the controller, causing the output end of the hydraulic cylinder 41 to extend, thereby driving the hollow pressing plate 42 to move vertically downward. During the vertical downward movement of the hollow pressing plate 42, the rubber gear 54 engaged with the moving tooth groove 56 rotates clockwise, thereby driving the plug rod 53 on the side close to the rubber gear 54 to rotate clockwise together. Under the action of the transmission connection between the two synchronous wheels 52 through the synchronous belt, the two plug rods 53 rotate clockwise together. For reference, see Figure 13 , in this way, the core shaft on the plug rod 53 on the side close to the rubber gear 54 unwinds, and the core shaft on the plug rod 53 on the side far from the rubber gear 54 winds, thereby causing the filter cloth on the core shaft to move. That is, during the vertical descent of the hollow pressing plate 42, the filter cloth at the bottom of the hollow pressing plate 42 continuously moves, so that the filter cloth in contact with the solid residue is continuously updated, avoiding the accumulation and blockage of the solid residue on the filter cloth during the process of compacting the solid residue.

[0025] In the above process, the pressing component in this device cooperates with the stirring component. Stirring and compacting at the same time can achieve the neutralization reaction with ammonia water immediately while the residual liquid is extruded. At the same time, during the process of compacting the solid residue by the hollow pressing plate component, the filter cloth at the bottom of the hollow pressing plate component continuously moves, avoiding the long-term accumulation of solid residue at the same position of the filter cloth and causing blockage. It solves the problem in the prior art of using a fixed installation method for the filter cloth. The fixed cloth surface is used for a long time, resulting in serious residue accumulation and blockage. As time goes by, the flux decreases, resulting in the inability to completely discharge the residual liquid in the solid residue, and thus the solid residue cannot be completely compacted. In this way, not only the neutralization efficiency of the production residue is improved, but also the risk of blockage during the compaction of the solid residue is avoided. At the same time, the automation and stability of the environmental protection technology treatment equipment are improved.

[0026] This device can automatically adjust the filtration speed. The following are the detailed steps: At the same time, during the vertical downward movement of the hollow pressing plate 42, the round head rod 47 moves from the upper straight groove of the combined groove 48 to the inclined groove. When the round head rod 47 moves to the inclined groove of the combined groove 48, due to the reset of the first spring 44, the first spring 44 pushes the adjusting plate 45 and the round head rod 47 to move horizontally in the direction away from the fixed plate 43. And during this process, the round head rod 47 always abuts against the inner wall of the combined groove 48. As the round head rod 47 continuously moves along the inclined groove of the combined groove 48, the intersecting area between the filter holes 46 on the adjusting plate 45 and the filter holes 46 on the hollow pressing plate 42 gradually increases; As the hollow pressing plate 42 continues to move vertically downward, the intersecting area between the filter holes 46 on the adjusting plate 45 and the filter holes 46 on the hollow pressing plate 42 gradually increases until the round head rod 47 moves from the inclined slot of the combined slot 48 to the lower straight slot. At this time, the filter holes 46 on the adjusting plate 45 completely coincide with the filter holes 46 opened on the hollow pressing plate 42, that is, the filtering channel area formed by the filter holes 46 is the largest at this time. And when the round head rod 47 is located in the lower straight slot of the combined slot 48, the adjusting plate 45 remains stationary. In this way, during the process of the hollow pressing plate 42 compacting the solid residue, by controlling the filtering channel area composed of the filter holes 46 opened on the hollow pressing plate 42 and the filter holes 46 opened on the adjusting plate 45, the filtering speed can be effectively controlled, so that the ammonia water can better neutralize the squeezed residual liquid, thereby realizing the neutralization treatment of the residual liquid.

[0027] In the above process, compared with the prior art that adopts a single aperture size for filtering, during the process of the filtering component in this device compacting the solid residue, the aperture of the filter holes 46 changes from small to large, so as to effectively control the filtering speed. Furthermore, the ammonia water and the residual liquid can react more fully and thoroughly, solving the problem that in the process of compacting the solid residue, filtering with a single aperture size causes the initial filtering speed to be too fast, resulting in too much residual liquid being discharged from the solid residue at the initial stage and being unable to react fully with the ammonia water. In this way, not only the treatment efficiency of the production residue is improved, but also the working stability of the environmental protection technology treatment equipment is improved.

[0028] This device can compact solid residue, and the following are the detailed steps: At the same time, during the process of the hollow pressing plate 42 moving vertically downward, the cover plate 55 moves vertically downward together with the hollow pressing plate 42. As the hollow pressing plate 42 continues to move vertically downward, the bottom surface of the cover plate 55 will contact the inclined surface of the limit block 67. As the cover plate 55 continues to move downward, the cover plate 55 thus squeezes the limit block 67, causing the limit block 67 and the stop block on the limit block 67 to move horizontally along the chute opened in the cavity cylinder 64 in the direction close to the telescopic rod 65. At this time, the telescopic rod 65 contracts, and the second spring 66 is squeezed into a compressed state by the limit block 67. When the limit block 67 completely enters the square hole 68, the limit block 67 stops moving. As the cover plate 55 continues to move downward, when the cover plate 55 no longer contacts the limit block 67, due to the reset of the second spring 66, the telescopic rod 65 extends, causing the limit block 67 and the limit block 67 to move horizontally along the chute opened in the cavity cylinder 64 in the direction away from the telescopic rod 65 until it returns to the initial position. When the limit block 67 returns to the initial position, the limit block 67 is located above the cover plate 55, thereby limiting the upper surfaces of the cover plate 55 and the hollow pressing plate 42. In this way, when the hollow pressing plate 42 compacts the solid residue, it can prevent the hollow pressing plate 42 from warping and thus avoid the situation where the solid residue cannot be compacted.

[0029] During the above process, the anti-warping component in the device can limit the downward hollow plate component during the process of compacting solid residues, enabling the solid residues to be evenly stressed, thereby avoiding the situation where the compacting component warps during the compaction of solid residues, resulting in force deviation. This solves the problem in the prior art that due to the warping of the downward hollow plate during the compaction of solid residues, the edge of the solid residues is under insufficient stress, resulting in more residual liquid remaining in the solid residues. In this way, not only can the solid residues be better compacted, thereby better discharging the residual liquid, but also the recycling efficiency of the environmental protection technology treatment equipment is improved.

[0030] After the neutralization treatment of ammonia water and production residues is completed, the staff opens the upper connecting pipe 2 to export and collect the treated liquid, then opens the hatch to recycle the compacted solid residues, and then closes the upper connecting pipe 2 and the hatch. The electric push rod 62 is started through the controller, so that the output end of the electric push rod 62 contracts, driving the moving plate 63, the limiting block 67 and the cavity cylinder 64 to move horizontally along the guide rail 69 in the direction away from the treatment box 1. When the vertical surface of the limiting block 67 is flush with the inner cavity side wall of the treatment box 1, the output end of the electric push rod 62 stops moving. Then, the staff starts the hydraulic cylinder 41 through the controller, so that the output end of the hydraulic cylinder 41 drives the hollow pressing plate 42 to move vertically upward to return to the initial position. After the hollow pressing plate 42 returns to the initial position, the staff makes the electric push rod 62 extend through the controller, driving the moving plate 63, the cavity cylinder 64 and the limiting block 67 to return to the initial position.

[0031] During the process of the hollow pressing plate 42 returning to the initial position, the round head rod 47 moves from the lower straight groove of the combined groove 48 to the upper straight groove, so that the filter channel formed by the filter holes 46 on the adjusting plate 45 and the filter holes 46 on the hollow pressing plate 42 returns to the initial state. At the same time, the rubber gear 54 rotates counterclockwise, so that the core shaft on the side close to the rubber gear 54 winds up, and the core shaft on the side far from the rubber gear 54 unwinds, so that the filter cloth moves in the reverse direction to the initial position for reuse next time.

[0032] The above are only embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An environmental protection treatment device for residues in dimethyl sulfate production, comprising a treatment tank (1), characterized in that, Two connecting pipes (2) are symmetrically connected inside the processing box (1), and a stirrer (3) is installed inside the processing box (1). A pressing-down assembly is arranged on the processing box (1). The pressing-down assembly includes a hydraulic cylinder (41) fixedly installed on the processing box (1). The output end of the hydraulic cylinder (41) is fixedly connected with a hollow pressing plate (42). A fixing plate (43) is fixedly connected inside the cavity of the hollow pressing plate (42). Four first springs (44) are symmetrically and fixedly connected to the fixing plate (43). Two first springs (44) on the same side are each fixedly connected with an adjusting plate (45). Filter holes (46) are equidistantly formed in the hollow pressing plate (42) and the two adjusting plates (45). A round-head rod (47) is fixedly connected to the outer wall of each adjusting plate (45). Two combined grooves (48) are symmetrically formed in the inner cavity wall of the processing box (1).

2. The environmental protection treatment device for residues in the production of dimethyl sulfate according to claim 1, characterized in that, The hollow pressing plate (42) is slidably connected with the processing box (1). The two adjusting plates (45) are both slidably connected with the hollow pressing plate (42). The two round-head rods (47) are both slidably connected with the hollow pressing plate (42). The two round-head rods (47) are both adapted to the adjacent combined grooves (48). Each of the two combined grooves (48) is composed of an inclined groove and two straight grooves.

3. The environmentally friendly treatment device for dimethyl sulfate production residue according to claim 1, characterized in that: A filtering assembly is arranged on the hollow pressing plate (42). The filtering assembly includes a sealing chamber (51) fixedly connected to the hollow pressing plate (42). Two synchronous wheels (52) are symmetrically and rotatably connected inside the sealing chamber (51). A plug rod (53) is fixedly connected to each of the two synchronous wheels (52). A rubber gear (54) is fixedly connected to the outer surface of one of the plug rods (53). Two cover plates (55) are symmetrically and fixedly connected to the hollow pressing plate (42). A plurality of moving tooth grooves (56) are equidistantly formed in the inner cavity wall of the processing box (1).

4. The environmentally friendly treatment device for dimethyl sulfate production residue according to claim 3, characterized in that: The two synchronous wheels (52) are connected by a synchronous belt. The two plug rods (53) are both rotatably connected with the sealing chamber (51). The rubber gear (54) meshes with the moving tooth grooves (56).

5. An environmental protection treatment device for residues in the production of dimethyl sulfate according to claim 3, characterized in that, The two plug rods (53) are both arranged in a cylindrical shape.

6. The environmental protection treatment device for residues in the production of dimethyl sulfate according to claim 1, characterized in that, An anti-warping-edge assembly is arranged outside the processing box (1). The anti-warping-edge assembly includes fixed bases (61). There are two fixed bases (61) symmetrically arranged. An electric push rod (62) is fixedly installed on each of the two fixed bases (61). The telescopic end of each electric push rod (62) is fixedly connected with a moving plate (63). A plurality of cavity cylinders (64) are symmetrically and fixedly connected to each moving plate (63). A telescopic rod (65) is fixedly connected inside each cavity cylinder (64). A second spring (66) is sleeved outside each telescopic rod (65). A limiting block (67) is fixedly connected to each telescopic rod (65). A plurality of square holes (68) are symmetrically formed in the inner cavity of the processing box (1). Two guide rails (69) are symmetrically and fixedly connected to each fixed base (61).

7. The environmentally friendly treatment device for dimethyl sulfate production residue according to claim 6, characterized in that: Two chutes are symmetrically formed in the inner cavity of each of the cavity cylinders (64), and two stoppers are symmetrically and fixedly connected to the outer wall of each of the limiting blocks (67), and the stoppers are adapted to the adjacent chutes.

8. The environmentally friendly treatment device for dimethyl sulfate production residue according to claim 6, characterized in that: Each of the moving plates (63) is slidably connected to the adjacent guide rail (69), each of the second springs (66) is fixedly connected to the adjacent cavity cylinder (64) and the limiting block (67), each of the limiting blocks (67) is slidably connected to the adjacent cavity cylinder (64), each of the limiting blocks (67) is adapted to the adjacent square hole (68), and a sealing gasket is provided at the connection between each of the square holes (68) and the adjacent limiting block (67).

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