Hazardous waste pyrolysis treatment device

Abstract

The utility model discloses a hazardous waste pyrolysis treatment device which comprises a pyrolysis treatment barrel, a circulating stirring mechanism used for stirring hazardous waste in a reciprocating mode is fixedly installed at the top of the pyrolysis treatment barrel, and the circulating stirring mechanism comprises a driving motor fixedly connected to the top of the pyrolysis treatment barrel. The output end of the driving motor is fixedly connected with a stirring rod through a differential mechanism, the outer side of the stirring rod is fixedly connected with a cam, and the top of the pyrolysis treatment cylinder is fixedly provided with an intermittent feeding mechanism for intermittent feeding. The stirring rod rotates to drive the cam to control the baffle to move, so that auxiliary materials in the storage barrel intermittently enter the pyrolysis treatment barrel, the problems of caking and non-uniform mixing caused by one-time large-amount contact of the auxiliary materials and dangerous waste materials are solved, the auxiliary materials are better fused with the dangerous waste materials in the circulating stirring process, the auxiliary materials fully play a role, and the waste treatment efficiency is improved. The pyrolysis reaction effect is improved, so that a pyrolysis product with higher quality is obtained.

Description

Technical Field

[0001] This utility model relates to the field of hazardous waste pyrolysis technology, specifically a hazardous waste pyrolysis treatment device. Background Technology

[0002] Hazardous waste pyrolysis refers to the process of heating hazardous waste under anaerobic or oxygen-deficient conditions to induce its chemical decomposition. Through pyrolysis, large organic molecules in hazardous waste are broken down into smaller molecule combustible gases, liquid fuels, and solid substances. This method enables the reduction, detoxification, and resource recovery of hazardous waste, helping to reduce its environmental harm and allowing for the recovery of valuable products, thus playing an important and positive role in the field of hazardous waste treatment.

[0003] In existing hazardous waste pyrolysis equipment, auxiliary materials (such as catalysts) are often added all at once. This can easily lead to the following problems when the auxiliary materials are mixed with the hazardous waste: First, the two may clump together during the pyrolysis process due to the large amount of contact at once, affecting the normal progress of the pyrolysis reaction; Second, the two are not easy to mix evenly, making it difficult for the auxiliary materials to fully play their role, thus reducing the efficiency of pyrolysis and the quality of the products.

[0004] To address these issues, this invention provides a hazardous waste pyrolysis treatment device. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides a hazardous waste pyrolysis treatment device, which solves the above problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hazardous waste pyrolysis treatment device, comprising a pyrolysis treatment cylinder, wherein a heater for heating hazardous waste is provided inside the pyrolysis treatment cylinder, an inlet for feeding hazardous waste is fixedly connected to the top of the pyrolysis treatment cylinder, and a circulating stirring mechanism for reciprocating stirring of hazardous waste is fixedly installed on the top of the pyrolysis treatment cylinder, wherein the circulating stirring mechanism includes a drive motor fixedly connected to the top of the pyrolysis treatment cylinder, a stirring rod is fixedly connected to the output end of the drive motor through a differential, and a cam is fixedly connected to the outer side of the stirring rod;

[0007] The top of the pyrolysis treatment cylinder is fixedly installed with an intermittent feeding mechanism for intermittent feeding. The intermittent feeding mechanism includes a feeding cylinder fixedly connected to the top of the pyrolysis treatment cylinder. A storage tank for storing auxiliary raw materials is fixedly installed on the top of the feeding cylinder. A limit groove is opened inside the feeding cylinder, and a baffle plate is slidably connected inside the limit groove.

[0008] Preferably, the stirring rod is disposed inside the pyrolysis treatment cylinder, the outer side of the stirring rod is wound with a threaded plate, and the cam is disposed outside the pyrolysis treatment cylinder.

[0009] Preferably, the barrier plate has a feeding hole, a limiting plate is fixedly connected to the outer side of the barrier plate, a fixing block is fixedly connected to the top of the pyrolysis treatment cylinder, a spring is fixedly connected between the fixing block and the limiting plate, a through hole matching the feeding cylinder is opened on the pyrolysis treatment cylinder, the other side of the barrier plate is arc-shaped, and the cam contacts the arc-shaped end of the barrier plate.

[0010] Preferably, a support leg for supporting the pyrolysis treatment cylinder is fixedly installed on the outside of the pyrolysis treatment cylinder, and a discharge valve for discharging material is provided below the pyrolysis treatment cylinder.

[0011] Preferably, the heater includes, but is not limited to, electric heaters and microwave heaters.

[0012] Preferably, the bottom of the pyrolysis treatment cylinder is inclined, and the side of the pyrolysis treatment cylinder near the discharge valve is the lower end.

[0013] Beneficial effects

[0014] This utility model provides a hazardous waste pyrolysis treatment device. Compared with the prior art, it has the following advantages:

[0015] (1) The hazardous waste pyrolysis treatment device uses the rotation of the stirring rod to drive the cam to control the movement of the baffle plate, so that the auxiliary material in the storage tank enters the pyrolysis treatment cylinder intermittently. This avoids the problems of agglomeration and uneven mixing caused by the large amount of auxiliary material and hazardous waste coming into contact at one time. It allows the auxiliary material to better integrate with the hazardous waste during the circulating stirring process, so that the auxiliary material can play a full role, improve the pyrolysis reaction effect, and thus obtain higher quality pyrolysis products.

[0016] (2) The hazardous waste pyrolysis treatment device drives the stirring rod and the threaded blade to rotate by the drive motor, which pushes the hazardous waste from the bottom to the top to form a circulating stirring in the upper and lower circles. This effectively solves the problems of hazardous waste clumping and uneven heating, so that the hazardous waste is heated more evenly in the pyrolysis treatment cylinder, the pyrolysis reaction is more complete, and the pyrolysis efficiency is improved. Attached Figure Description

[0017] Figure 1 This is a perspective view of the external structure of this utility model;

[0018] Figure 2 This is a front view of the external structure of this utility model;

[0019] Figure 3 This is an exploded view of the internal parts of the intermittent feeding mechanism of this utility model;

[0020] Figure 4 This is a cross-sectional schematic diagram of the pyrolysis treatment cylinder of this utility model.

[0021] In the diagram: 1. Pyrolysis treatment cylinder; 2. Support leg; 3. Discharge valve; 4. Inlet; 5. Circulating stirring mechanism; 51. Drive motor; 52. Stirring rod; 53. Threaded plate; 6. Intermittent feeding mechanism; 61. Storage tank; 62. Feeding cylinder; 63. Limiting groove; 64. Baffle plate; 65. Discharge hole; 66. Limiting plate; 67. Spring; 68. Fixing block; 7. Cam; 8. Heater. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1:

[0024] Please see Figures 1-4The hazardous waste pyrolysis treatment device includes a pyrolysis treatment cylinder 1. The pyrolysis treatment cylinder 1 is internally equipped with a heater 8 for heating the hazardous waste. The heater 8 includes, but is not limited to, electric heaters and microwave heaters (in actual use, electric heaters and microwave heaters can be selected according to the specific pyrolysis requirements of the hazardous waste; for example, electric heating is clean and environmentally friendly, has precise temperature control, is convenient to use, and is highly safe, but has high operating costs, limited heating power, and relatively low heating efficiency, suitable for places with high requirements for environmental and temperature accuracy; microwave heating has fast heating speed, uniform heating, selective heating characteristics, is clean and hygienic, and occupies a small area, but has limited penetration depth, high equipment costs, requirements for containers, and certain safety risks, suitable for industries with high requirements for heating speed and uniformity). The pyrolysis treatment cylinder 1... The top is fixedly connected to a feed inlet 4 for putting in hazardous waste. The top of the pyrolysis treatment cylinder 1 is fixedly installed with a circulating stirring mechanism 5 for reciprocating stirring of hazardous waste. The circulating stirring mechanism 5 includes a drive motor 51 fixedly connected to the top of the pyrolysis treatment cylinder 1. The output end of the drive motor 51 is fixedly connected to a stirring rod 52 through a differential. A cam 7 is fixedly connected to the outside of the stirring rod 52. The stirring rod 52 is located inside the pyrolysis treatment cylinder 1. A threaded plate 53 is wound around the outside of the stirring rod 52. The cam 7 is located on the outside of the pyrolysis treatment cylinder 1. A support leg 2 for supporting the pyrolysis treatment cylinder 1 is fixedly installed on the outside of the pyrolysis treatment cylinder 1. A discharge valve 3 for discharging material is provided below the pyrolysis treatment cylinder 1. The bottom of the pyrolysis treatment cylinder 1 is inclined. The side of the pyrolysis treatment cylinder 1 near the discharge valve 3 is the lower end.

[0025] First, the hazardous waste is put into the pyrolysis treatment cylinder 1 through the feed inlet 4. Then, the catalyst and other auxiliary materials used for the pyrolysis of the hazardous waste are put into the storage tank 61. Then, the heater 8 is controlled to work and the drive motor 51 is started. After the drive motor 51 rotates, it drives the stirring rod 52 to rotate through the differential. After the stirring rod 52 rotates, it can stir the hazardous waste, thereby solving the problems of the hazardous waste clumping and uneven heating.

[0026] After pyrolysis is completed, open the discharge valve 3, and with the inclined shape of the bottom of the pyrolysis treatment cylinder 1, it is easier to discharge the pyrolyzed product. According to actual use needs, the discharge valve 3 can also be adjusted to be an open and close valve.

[0027] Example 2:

[0028] Please see Figures 1-4This embodiment provides a technical solution based on embodiment one: an intermittent feeding mechanism 6 for intermittent feeding is fixedly installed on the top of the pyrolysis treatment cylinder 1. The intermittent feeding mechanism 6 includes a feeding cylinder 62 fixedly connected to the top of the pyrolysis treatment cylinder 1. A storage tank 61 for storing auxiliary raw materials is fixedly installed on the top of the feeding cylinder 62. A limiting groove 63 is opened inside the feeding cylinder 62. A baffle plate 64 is slidably connected inside the limiting groove 63. A discharge hole 65 is opened on the baffle plate 64. A limiting plate 66 is fixedly connected to the outside of the baffle plate 64. A fixing block 68 is fixedly connected to the top of the pyrolysis treatment cylinder 1. A spring 67 is fixedly connected between the fixing block 68 and the limiting plate 66. A through hole matching the feeding cylinder 62 is opened on the pyrolysis treatment cylinder 1. The other side of the baffle plate 64 is arc-shaped. The cam 7 contacts the arc-shaped end of the baffle plate 64.

[0029] When the stirring rod 52 rotates, it drives the cam 7 to rotate. After the cam 7 contacts the baffle plate 64, it pushes the cam 7 to move, so that the discharge hole 65 contacts the opening of the feed cylinder 62. The storage tank 61 and the feed cylinder 62 are connected. The auxiliary material in the storage tank 61 enters the pyrolysis treatment cylinder 1. The baffle plate 64 moves to compress the spring 67. When the cam 7 passes the baffle plate 64, the spring 67 pushes the baffle plate 64 to reset, so that it separates the discharge hole 65 from the opening of the feed cylinder 62 and blocks the opening of the feed cylinder 62, so as to prevent the auxiliary material in the storage tank 61 from entering the pyrolysis treatment cylinder 1.

[0030] At the same time, the rotation of the stirring rod 52 also drives the threaded plate 53 to rotate. The threaded plate 53 pushes the hazardous waste from the bottom to the top, forming a circular stirring that surrounds the material from top to bottom. This allows the auxiliary material entering the pyrolysis treatment cylinder 1 to be better mixed with the hazardous waste during the circulation process, avoiding the two being added at the same time and failing to fully blend.

[0031] In actual use, multiple sets of intermittent feeding mechanisms 6 can be set up, and the auxiliary materials placed in each set of intermittent feeding mechanisms 6 (in the process of hazardous waste pyrolysis, in addition to temperature as a key factor, other substances are sometimes needed to assist pyrolysis, such as catalysts, inert media and modifiers, which is common knowledge to those skilled in the art) can be the same or different, so that the intermittent feeding mechanism 6 can be driven to work synchronously when the circulating stirring mechanism 5 is working, thereby realizing the intermittent supply of auxiliary materials.

[0032] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0033] Working principle: During operation, the hazardous waste is first put into the pyrolysis treatment cylinder 1 through the feed inlet 4. Then, the catalyst and other auxiliary materials used for the pyrolysis of the hazardous waste are put into the storage tank 61. Then, the heater 8 is controlled to work and the drive motor 51 is started. After the drive motor 51 rotates, it drives the stirring rod 52 to rotate through the differential. The rotation of the stirring rod 52 can stir the hazardous waste, thereby solving the problems of the hazardous waste clumping and uneven heating.

[0034] When the stirring rod 52 rotates, it will also drive the cam 7 to rotate synchronously. After the cam 7 rotates and comes into contact with the baffle plate 64, it will push the baffle plate 64 to move. After the baffle plate 64 moves, the discharge hole 65 will come into contact with the opening of the feed cylinder 62. At this time, the storage tank 61 and the feed cylinder 62 are connected, and the auxiliary material in the storage tank 61 will enter the pyrolysis treatment cylinder 1. After the baffle plate 64 moves, it will squeeze the spring 67. When the cam 7 passes the baffle plate 64, the spring 67 will push the baffle plate 64 to reset. After the baffle plate 64 resets, the discharge hole 65 will not come into contact with the opening of the feed cylinder 62, and the baffle plate 64 will also block the opening of the feed cylinder 62, thereby preventing the auxiliary material inside the storage tank 61 from entering the pyrolysis treatment cylinder 1.

[0035] When the stirring rod 52 rotates, it also drives the threaded plate 53 to rotate. After the threaded plate 53 rotates, the hazardous waste material can be pushed from the bottom to the top, forming a circular stirring of the hazardous waste material. Therefore, the auxiliary material entering the pyrolysis treatment cylinder 1 will be better mixed with the hazardous waste material in this cycle, and at the same time, it can also avoid the auxiliary material and hazardous waste material being added at the same time, which would cause the two to not be fully integrated.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hazardous waste pyrolysis treatment device, comprising a pyrolysis treatment cylinder (1), characterized in that: The pyrolysis treatment cylinder (1) is equipped with a heater (8) for heating the hazardous waste. The top of the pyrolysis treatment cylinder (1) is fixedly connected to a feed inlet (4) for feeding the hazardous waste. The top of the pyrolysis treatment cylinder (1) is fixedly installed with a circulating stirring mechanism (5) for reciprocating stirring of the hazardous waste. The circulating stirring mechanism (5) includes a drive motor (51) fixedly connected to the top of the pyrolysis treatment cylinder (1). The output end of the drive motor (51) is fixedly connected to a stirring rod (52) through a differential. A cam (7) is fixedly connected to the outside of the stirring rod (52). The top of the pyrolysis treatment cylinder (1) is fixedly installed with an intermittent feeding mechanism (6) for intermittent feeding. The intermittent feeding mechanism (6) includes a feeding cylinder (62) fixedly connected to the top of the pyrolysis treatment cylinder (1). The top of the feeding cylinder (62) is fixedly installed with a storage tank (61) for storing auxiliary raw materials. A limiting groove (63) is opened inside the feeding cylinder (62). A baffle plate (64) is slidably connected inside the limiting groove (63).

2. The hazardous waste pyrolysis treatment device according to claim 1, characterized in that: The stirring rod (52) is disposed inside the pyrolysis treatment cylinder (1), and a threaded plate (53) is wound around the outside of the stirring rod (52). The cam (7) is disposed on the outside of the pyrolysis treatment cylinder (1).

3. The hazardous waste pyrolysis treatment device according to claim 1, characterized in that: The barrier plate (64) has a feeding hole (65), a limiting plate (66) is fixedly connected to the outer side of the barrier plate (64), a fixing block (68) is fixedly connected to the top of the pyrolysis treatment cylinder (1), a spring (67) is fixedly connected between the fixing block (68) and the limiting plate (66), a through hole for matching the feeding cylinder (62) is opened on the pyrolysis treatment cylinder (1), the other side of the barrier plate (64) is arc-shaped, and the cam (7) contacts the arc-shaped end of the barrier plate (64).

4. The hazardous waste pyrolysis treatment device according to claim 1, characterized in that: The pyrolysis treatment cylinder (1) is fixedly installed with a support leg (2) for supporting the pyrolysis treatment cylinder (1), and a discharge valve (3) for discharging material is provided below the pyrolysis treatment cylinder (1).

5. The hazardous waste pyrolysis treatment device according to claim 1, characterized in that: The heater (8) includes, but is not limited to, electric heaters and microwave heaters.

6. The hazardous waste pyrolysis treatment device according to claim 1, characterized in that: The bottom of the pyrolysis treatment cylinder (1) is inclined, and the side of the pyrolysis treatment cylinder (1) near the discharge valve (3) is the lower end.

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