Industrial waste treatment device and method

Abstract

The invention provides an industrial waste treatment device and method. The device comprises screening equipment; the screening equipment comprises a shell, a feeding port is formed in the top of the shell, a transmission rod is vertically and movably arranged in the shell, a discharging port is formed in the outer wall of the shell, and a material guiding plate is obliquely arranged on the inner side wall of the shell. And the lower end of the guide plate is connected with the feeding end of the discharge port. The sieve plate is driven to deflect and move back and forth around the corresponding guide plate by driving the transmission rod to vertically reciprocate, and the adjusting assembly is synchronously triggered, so that the adjusting assembly can intermittently supply materials to the sieve plate from the feed port. According to the device, the inclination angle of the sieve plate can be continuously changed when the sieve plate screens materials, the screening efficiency is improved, intermittent feeding to the sieve plate can be achieved through synchronous cooperation with use of the adjusting assembly, material particles are prevented from being left and blocking the sieve plate, and the screening effect of the sieve plate on waste particles is ensured.

Description

Technical Field

[0001] This invention relates to the field of industrial environmental protection technology, specifically to an industrial waste treatment device and method. Background Technology

[0002] The statements herein provide only background information in relation to this invention and do not necessarily constitute prior art.

[0003] With the rapid development of industry, the amount of industrial waste discharged is increasing day by day. If these wastes are not handled properly, they will cause serious pollution to soil, water sources and air, endangering the ecological environment and human health.

[0004] Current industrial waste treatment equipment requires screening of crushed waste particles before pyrolysis to select particles that meet preset particle size requirements, thereby improving the uniformity of waste particle pyrolysis. However, since the screen plate angle of current screening equipment is mostly fixed and the amount of waste particles fed to the screen plate is unstable, sometimes more and sometimes less, when the amount of material fed to the screen plate is large, the material particles are prone to accumulate and stagnate, causing the screen plate to become blocked, reducing the screening efficiency of the screen plate for waste particles, and affecting the industrial waste treatment process. Summary of the Invention

[0005] The main objective of this invention is to provide an industrial waste treatment device and method.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: an industrial waste treatment device includes a screening device and a pyrolysis furnace connected sequentially along the waste conveying direction. The screening device is used to screen out waste particles that meet a preset particle size from the crushed industrial waste. The pyrolysis furnace is used to pyrolyze the screened waste particles to decompose the waste into recyclable combustible gas, tar and waste residue. The screening equipment includes a shell with a feed inlet at the top. A transmission rod is vertically movable inside the shell. A discharge port is opened on the outer wall of the shell. A guide plate is inclinedly arranged on the inner side wall of the shell. The lower end of the guide plate is connected to the feed inlet of the discharge port. A screen plate is rotatably arranged at the upper end of the guide plate, located directly below the feed inlet. The end of the screen plate away from the guide plate is rotatably arranged on the outer wall of the transmission rod. The screening equipment also includes an adjustment component, which drives the screen plate to reciprocate around the corresponding guide plate by driving the transmission rod to move vertically back and forth, and simultaneously triggers the adjustment component, enabling the adjustment component to intermittently feed material from the feed inlet to the screen plate.

[0007] Furthermore, a cylindrical body is rotatably inserted into the top wall of the housing, the top of the transmission rod is inserted into the bottom of the cylindrical body, and a continuously closed groove with an eight-shaped structure is axially opened on the inner side wall of the cylindrical body. A protrusion that slides with the groove is provided on the outer wall of the transmission rod.

[0008] Furthermore, a base is installed on the top of the shell, and a motor is installed on the top of the base, with the motor output shaft connected to the top of the cylinder.

[0009] Furthermore, the adjustment assembly includes a disc that is sleeved and fixed to the outer periphery of the cylinder. A feed pipe parallel to the cylinder is inserted into the feed port on the shell. The discharge end of the feed pipe extends into the shell and slides and seals with the top surface of the disc. At least one material passage hole is opened on the disc along its circumference. The disc is rotated by the cylinder, so that the inlet end of the material passage hole and the outlet end of the feed pipe are intermittently connected.

[0010] Furthermore, a partition is provided inside the housing, which separates the housing from top to bottom to form a screening chamber and a storage chamber. A receiving groove with an opening is provided at the top of the partition and located below the screening plate. A discharge hole is opened in the middle of the bottom of the receiving groove and the middle of the partition. A connecting rod is concentrically fixed at the bottom of the transmission rod, and a pusher plate that intermittently cooperates with the discharge hole is provided at the bottom of the connecting rod.

[0011] Furthermore, a feeding pipe is inserted into the bottom of the shell, which communicates with the storage chamber. The discharge end of the feeding pipe is connected to the feed end of the pyrolysis furnace, and a material pump is installed on the feeding pipe.

[0012] Furthermore, a support rod parallel to the transmission rod is fixed at the lower end of the guide plate, and the side of the screen plate away from the transmission rod is rotatably connected to the outer wall of the support rod. A telescopic rod parallel to the extension direction of the screen plate is fixed at the end of the screen plate near the transmission rod, and one end of the telescopic rod is rotatably connected to the outer wall of the transmission rod.

[0013] Furthermore, the sieve plate has two sets of vertically aligned screens on the inner side of the housing; the upper sieve plate has a first screen, and the lower sieve plate has a second screen, wherein the mesh number of the first screen is smaller than that of the second screen.

[0014] The present invention also provides a method for treating industrial waste, which is applied to any of the above-described apparatus, comprising the following steps: S1. Pre-treatment: Industrial waste is crushed and then screened to remove waste particles that meet the preset particle size. The waste is then dried to remove moisture. S2. Pyrolysis treatment: The pretreated waste particles are fed into the pyrolysis furnace. The pyrolysis furnace is heated by a heating device to keep the temperature inside the pyrolysis furnace within the preset pyrolysis temperature range. The waste particles undergo a pyrolysis reaction in the pyrolysis furnace to produce combustible gas, tar and waste residue.

[0015] 10. The industrial waste treatment method as described in claim 9, characterized in that it further includes steps S3 and S4, the specific steps of which are as follows: S3. Waste gas treatment: Cool the combustible gas and tar produced by pyrolysis. After the tar is condensed and separated, the combustible gas is purified to remove harmful components and is then recovered. S4. Waste treatment: Cool the waste generated from pyrolysis and convert it into usable products according to the type of waste.

[0016] The beneficial effects of this invention are reflected in: 1. The industrial waste treatment device of the present invention can continuously change the tilt angle of the screen plate during screening to improve screening efficiency. With the synchronous use of the adjustment component, intermittent feeding can be achieved to the screen plate to avoid material particles from clogging the screen plate and to ensure the screening effect of the screen plate on waste particles. 2. The industrial waste treatment method of the present invention is simple to operate, has high efficiency in screening waste material particles, and can adapt to the treatment of different types and properties of industrial waste. Attached Figure Description

[0017] In the attached diagram: Figure 1 This is a perspective structural diagram of the device provided in Embodiment 1 of the present invention; Figure 2 for Figure 1 A cross-sectional structural diagram of the medium screening equipment (the transmission rod drives the screen plate to move up and deflect, the feed pipe outlet end is in a blocked state, and the pusher plate is located above the discharge hole 24). Figure 3 for Figure 1 A cross-sectional view of the screening equipment in another state (the transmission rod drives the screen plate to move down and deflect to the horizontal, the discharge end of the feed pipe is in communication with the material passage hole 21, and the pusher plate is located in the discharge hole 24). Figure 4 for Figure 2 A schematic diagram of the cross-sectional structure of the middle cylinder; Figure 5 for Figure 3 A schematic diagram of the cross-sectional structure of the middle cylinder; Figure 6 for Figure 2 A schematic diagram of the distribution of grooves and channels after partial unfolding of the middle cylinder; Figure 7 A flowchart of the method provided in Embodiment 2 of the present invention.

[0018] Explanation of reference numerals in the attached figures: 1. Shell; 2. Pyrolysis furnace; 3. Feed pipe; 4. Baffle plate; 5. Cylinder; 6. Transmission rod; 7. Groove; 8. Protrusion; 9. Telescopic rod; 10. Screen plate; 11. First screen; 12. Second screen; 13. Guide plate; 14. Discharge port; 16. Support rod; 17. Base; 18. Feed pipe; 19. Motor; 20. Disc; 21. Through hole; 22. Connecting rod; 23. Push plate; 24. Discharge hole; 25. Receiving trough; 26. Material pump. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the invention, and not all of them. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0020] Example 1 Please combine Figures 1 to 6 .

[0021] An industrial waste treatment device includes a screening device and a pyrolysis furnace connected sequentially along the waste conveying direction. The screening device is used to screen out waste particles that meet a preset particle size from the crushed industrial waste. The pyrolysis furnace is used to pyrolyze the screened waste particles to decompose the waste into recyclable combustible gas, tar and waste residue. The screening equipment includes a housing 1, with a feed inlet at the top of the housing 1. A transmission rod 6 is vertically movable inside the housing 1. A discharge port 14 is opened on the outer wall of the housing 1. A guide plate 13 is inclinedly arranged on the inner side wall of the housing 1. The lower end of the guide plate 13 is connected to the feed end of the discharge port 14. A screen plate 10 is rotatably arranged at the upper end of the guide plate 13, located directly below the feed inlet. The end of the screen plate 10 away from the guide plate 13 is rotatably arranged on the outer wall of the transmission rod 6. The screening equipment also includes an adjustment component, which drives the screen plate 10 to reciprocate around the corresponding guide plate 13 by driving the transmission rod 6 to move vertically back and forth, and simultaneously triggers the adjustment component, enabling the adjustment component to intermittently feed material from the feed inlet to the screen plate 10.

[0022] In practice, crushed industrial waste particles are fed into a screening device through the inlet for screening. Particles meeting the preset particle size are then transported to a pyrolysis furnace 2 for pyrolysis, decomposing the waste into recyclable combustible gas, tar, and slag. Specifically, when waste particles fall onto the screen plate 10 in the housing 1 through the inlet, those meeting the particle size requirements are transported to the pyrolysis furnace 2. Particles not meeting the size requirements are discharged from the housing 1 through the discharge port 14 and collected for secondary crushing until they meet the size requirements. During this process, the drive rod 6 moves vertically back and forth, causing the screen plate 10 to reciprocate around the corresponding guide plate 13, improving the screening efficiency of waste particles on the screen plate 10 and reducing clogging. Simultaneously, the adjustment component allows for intermittent feeding from the inlet to the screen plate 10, ensuring stable feeding and guaranteeing the effective screening of waste particles by the screen plate 10.

[0023] The advantage of this design is that by setting transmission rods 6, the tilt angle of the screen plate 10 can be continuously changed during screening, thereby improving screening efficiency. At the same time, in conjunction with the use of adjustment components, intermittent feeding can be achieved to the screen plate 10, ensuring the screening effect of the screen plate 10 on waste particles.

[0024] In one embodiment, a cylindrical body 5 is rotatably inserted into the top wall of the housing 1, and the top of the transmission rod 6 is inserted into the bottom of the cylindrical body 5. A groove 7 with a figure-eight structure and continuous closure is axially opened on the inner side wall of the cylindrical body 5, and a protrusion 8 that slides with the groove 7 is provided on the outer wall of the transmission rod 6.

[0025] Thus, when the cylinder 5 rotates, the groove wall of the continuously closed groove 7, which has an axial V-shaped structure, continuously rubs and squeezes the protrusion 8, forcing the transmission rod 6 to reciprocate in the axial direction, thereby continuously driving the screen plate 10 to reciprocate around the corresponding guide plate 13, so that the tilt angle of the screen plate 10 can be continuously changed during screening.

[0026] In one embodiment, a base 17 is mounted on the top of the housing 1, and a motor 19 is mounted on the top of the base 17. The output shaft of the motor 19 is connected to the top of the cylinder 5. The motor 19 is a geared motor.

[0027] Thus, motor 19 can drive cylinder 5 to rotate through its output shaft.

[0028] In one embodiment, the adjusting assembly includes a disc 20 that is sleeved and fixed to the outer periphery of the cylinder 5. A feed pipe 18 parallel to the cylinder 5 is inserted into the feed port on the housing 1. The discharge end of the feed pipe 18 extends into the housing 1 and slides and seals with the top surface of the disc 20. At least one material passage hole 21 is opened on the disc 20 along its circumference. The cylinder 5 drives the disc 20 to rotate, so that the inlet end of the material passage hole 21 and the outlet end of the feed pipe 18 are intermittently connected and cooperated.

[0029] Thus, when the disc 20 rotates with the cylinder 5, whenever the disc surface of the disc 20 slides into contact with the discharge end of the feed pipe 18, it will block the feed pipe 18, preventing the material from falling to the screen plate 10. However, when the material passage hole 21 on the disc 20 moves to the position corresponding to the discharge end of the feed pipe 18, the material can fall to the screen plate 10 for screening, thereby realizing quantitative intermittent feeding to the screen plate 10.

[0030] In one embodiment, a partition 4 is provided inside the housing 1, and the partition 4 separates the housing 1 from top to bottom to form a screening chamber (not shown) and a storage chamber (not shown). The top of the partition 4 is provided with a receiving groove 25 with an opening and located below the screen plate 10. The bottom of the receiving groove 25 and the middle of the partition 4 are provided with a discharge hole 24. The bottom of the transmission rod 6 is concentrically fixed with a connecting rod 22, and the bottom of the connecting rod 22 is provided with a pusher plate 23 that intermittently cooperates with the discharge hole 24.

[0031] Thus, when the transmission rod 6 moves axially back and forth, each time the transmission rod 6 moves downward, it can drive the pusher plate 23 to push the material in the receiving groove 25 into the material discharge hole 24, thereby improving the material transmission efficiency in the discharge hole 24.

[0032] It should be noted that the bottom of the receiving trough 25 has a downward slope towards the center, so that the material that meets the particle size after screening can be quickly moved into the feed hole 24 and temporarily stored in the storage chamber. The top of the pusher plate 23 has an upward convex slope to prevent material particles from being stuck on the top of the pusher plate 23.

[0033] In one embodiment, a feeding pipe 3 communicating with the storage chamber is inserted into the bottom of the housing 1. The discharge end of the feeding pipe 3 is connected to the feed end of the pyrolysis furnace 2, and a material pump 26 is installed on the feeding pipe 3.

[0034] Thus, the waste particles that meet the particle size requirements after screening can be transported to the pyrolysis furnace 2 for pyrolysis through the material pump 26 and the feeding pipe 3.

[0035] In one embodiment, a support rod 16 parallel to the transmission rod 6 is fixed at the lower end of the guide plate 13. The side of the screen plate 10 away from the transmission rod 6 is rotatably connected to the outer wall of the support rod 16. A telescopic rod 9 parallel to the extension direction of the screen plate 10 is fixed at the end of the screen plate 10 near the transmission rod 6. One end of the telescopic rod 9 is rotatably connected to the outer wall of the transmission rod 6.

[0036] Thus, the screen plate 10 is supported on the guide plate 13 by the support rod 16, and the screen plate 10 is connected to the transmission rod 6 by the telescopic rod 9.

[0037] In one embodiment, the sieve plate 10 has two sets of vertically aligned screens on the inner side of the housing 1; wherein the upper sieve plate 10 has a first screen 11 and the lower sieve plate 10 has a second screen 12, and the mesh number of the first screen 11 is smaller than the mesh number of the second screen 12.

[0038] In this way, the material can be screened in multiple stages in the same vertical direction until particles that meet the particle size requirements are selected. This can be set according to actual needs.

[0039] Example 2 Please combine Figure 7 The present invention also provides a method for treating industrial waste, which is applied to the apparatus of Embodiment 1 above, and includes the following steps: S1. Pre-treatment: Industrial waste is crushed and then screened to remove waste particles that meet the preset particle size. The waste is then dried to remove moisture. S2. Pyrolysis treatment: The pretreated waste particles are fed into pyrolysis furnace 2. The pyrolysis furnace is heated by a heating device to keep the temperature inside the pyrolysis furnace within the preset pyrolysis temperature range. The waste particles undergo pyrolysis reaction in the pyrolysis furnace to produce combustible gas, tar and waste residue.

[0040] It also includes steps S3 and S4, the specific steps of which are as follows: S3. Waste gas treatment: Cool the combustible gas and tar produced by pyrolysis. After the tar is condensed and separated, the combustible gas is purified to remove harmful components and is then recovered. S4. Waste treatment: Cool the waste generated from pyrolysis and convert it into usable products according to the type of waste.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0042] It should be noted that if the embodiments of the invention involve directional indicators (such as up and down), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0043] Furthermore, the meaning of "and / or" throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B. Additionally, if the embodiments of the invention involve descriptions such as "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" can explicitly or implicitly include at least one of those features. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the invention.

Claims

1. An industrial waste treatment device, characterized in that, The equipment includes a screening device and a pyrolysis furnace (2) connected sequentially along the waste conveying direction. The screening device is used to screen out waste particles that meet the preset particle size from the crushed industrial waste. The pyrolysis furnace (2) is used to pyrolyze the screened waste particles to decompose the waste into recyclable combustible gas, tar and waste residue. The screening equipment includes a shell (1), with a feed inlet at the top of the shell (1), a transmission rod (6) that can be vertically moved inside the shell (1), a discharge port (14) on the outer wall of the shell (1), and a guide plate (13) that is inclined on the inner side wall of the shell (1). The lower end of the guide plate (13) is connected to the feed end of the discharge port (14), and a screen plate (10) located directly below the feed inlet is rotatably arranged at the upper end of the guide plate (13). The end of the screen plate (10) away from the guide plate (13) is rotatably arranged on the outer wall of the transmission rod (6). The screening equipment also includes an adjustment component, which drives the screen plate (10) to reciprocate around the corresponding guide plate (13) by driving the transmission rod (6) to move vertically back and forth, and simultaneously triggers the adjustment component, so that the adjustment component can realize the intermittent feeding of the feed port to the screen plate (10).

2. The industrial waste treatment device as described in claim 1, characterized in that, The inner top wall of the housing (1) is rotatably inserted with a cylinder (5), the top of the transmission rod (6) is inserted at the bottom of the cylinder (5), the inner side wall of the cylinder (5) is axially provided with a groove (7) in the shape of an eight and continuously closed, and the outer wall of the transmission rod (6) is provided with a protrusion (8) that slides with the groove (7).

3. The industrial waste treatment device as described in claim 2, characterized in that, A base (17) is installed on the top of the housing (1), and a motor (19) is installed on the top of the base (17). The output shaft of the motor (19) is connected to the top of the cylinder (5).

4. The industrial waste treatment device as described in claim 3, characterized in that, The adjustment assembly includes a disc (20) that is sleeved and fixed on the outer periphery of the cylinder (5). A feed pipe (18) parallel to the cylinder (5) is inserted into the feed port on the housing (1). The discharge end of the feed pipe (18) extends into the housing (1) and slides and seals with the top surface of the disc (20). At least one material passage hole (21) is opened on the disc (20) along its circumference. The disc (20) is rotated by the cylinder (5) so that the inlet end of the material passage hole (21) and the outlet end of the feed pipe (18) are intermittently connected.

5. The industrial waste treatment device as described in claim 3, characterized in that, The housing (1) is provided with a partition (4), which separates the housing (1) from top to bottom to form a screening chamber and a storage chamber. The top of the partition (4) is provided with a receiving groove (25) with an open opening located below the screen plate (10). The bottom of the receiving groove (25) and the middle of the partition (4) are provided with a discharge hole (24). The bottom of the transmission rod (6) is concentrically fixed with a connecting rod (22). The bottom of the connecting rod (22) is provided with a pusher plate (23) that intermittently cooperates with the discharge hole (24).

6. The industrial waste treatment device as described in claim 5, characterized in that, The bottom of the housing (1) is fitted with a feeding pipe (3) that communicates with the storage chamber. The discharge end of the feeding pipe (3) is connected to the feed end of the pyrolysis furnace (2). A material pump (26) is installed on the feeding pipe (3).

7. The industrial waste treatment device as described in claim 1, characterized in that, The guide plate (13) is fixed with a support rod (16) parallel to the transmission rod (6) at its lower end. The side of the screen plate (10) away from the transmission rod (6) is rotatably connected to the outer wall of the support rod (16). The end of the screen plate (10) near the transmission rod (6) is fixed with a telescopic rod (9) parallel to the extension direction of the screen plate (10). One end of the telescopic rod (9) is rotatably connected to the outer wall of the transmission rod (6).

8. The industrial waste treatment device as described in claim 1, characterized in that, The sieve plate (10) has two sets of vertically aligned screens on the inner side of the housing (1); the upper sieve plate (10) has a first screen (11) and the lower sieve plate (10) has a second screen (12). The mesh number of the first screen (11) is smaller than that of the second screen (12).

9. A method for treating industrial waste, applied to the apparatus as described in any one of claims 1 to 8, characterized in that, Includes the following steps: S1. Pre-treatment: Industrial waste is crushed and then screened to remove waste particles that meet the preset particle size. The waste is then dried to remove moisture. S2. Pyrolysis treatment: The pretreated waste particles are sent into the pyrolysis furnace (2). The pyrolysis furnace (2) is heated by a heating device to keep the temperature inside the pyrolysis furnace (2) within the preset pyrolysis temperature range. The waste particles undergo pyrolysis reaction in the pyrolysis furnace (2) to produce combustible gas, tar and waste residue.

10. The industrial waste treatment method as described in claim 9, characterized in that, It also includes steps S3 and S4, the specific steps of which are as follows: S3. Waste gas treatment: Cool the combustible gas and tar produced by pyrolysis. After the tar is condensed and separated, the combustible gas is purified to remove harmful components and is then recovered. S4. Waste treatment: Cool the waste generated from pyrolysis and convert it into usable products according to the type of waste.

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