Pyrolysis furnace for precious metal recovery

Abstract

The utility model relates to the technical field of pyrolyzing furnaces, in particular to a pyrolyzing furnace for recycling precious metal. According to the technical scheme, the device comprises a purification structure, a crushing structure and a pyrolysis structure; the crushing structure comprises a machine body in a well shape; the crushing rollers are symmetrically distributed and rotationally mounted in the upper end of the machine body; the motor is fixedly arranged at the front end of the machine body; the purification structure comprises a purification box which is positioned above the machine body; the supporting ring is positioned on the lower end side of the purifying box; the filtering chamber is positioned inside the lower end of the purifying box; the filter screen is embedded into the upper end of the filter chamber; the fan is located in the upper end of the purification box; the pyrolysis structure comprises a pyrolysis tank located in the lower end of the machine body; the pyrolysis assembly is located at the lower end of the pyrolysis tank; and the push plates are slidably mounted in the two ends of the pyrolysis tank. The crushing device is arranged in the upper end of the pyrolyzing furnace, and the purifying structure is arranged above the machine body, so that the problems that materials are inconvenient to convey, the heating is slow in the heating process, and the heat recovery efficiency is reduced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pyrolysis furnaces, in particular to a pyrolysis furnace for precious metal recovery. Background Art

[0002] Precious metals usually refer to gold, silver, platinum, palladium, rhodium, iridium and ruthenium. These metals usually have good corrosion resistance, conductivity and other special properties, so they are widely used in jewelry, industry, investment and electronic products.

[0003] There may be precious metals in discarded items or equipment. Directly discarding them will cause a waste of resources. Precious metal recycling can make reasonable use of these resources, reduce resource waste and improve sustainability. A pyrolysis furnace is a device used for high-temperature treatment, which is usually used in precious metal recycling. It can be used to heat waste or raw materials containing precious metals to high temperatures in order to extract precious metals from them. These furnaces can provide high temperature conditions through electrical heating, flame heating or other means, and are usually combined with other process steps to maximize the recovery of precious metals.

[0004] Publication number CN216047691U retrieved discloses a pyrolysis incinerator for precious metal recovery, including an incinerator body, a fire storage chamber and a hydraulic cylinder. Both sides of the incinerator body are provided with feed ports, the bottom of the incinerator body is provided with a discharge port, the outer side of the incinerator body is provided with a guide plate, the inner side of the incinerator body is provided with a limit frame, the top surface of the incinerator body is provided with two fixed plates, and a top plate is provided between the top surfaces of the two fixed plates. Through the position structure design of the fixed plate, the top plate, the hydraulic cylinder, the limit frame and the bearing plate, the precious metals after the incineration treatment between the bearing plate and the limit frame can be automatically discharged under the drive of the hydraulic cylinder, so that it is more conducive to the external output of the precious metals after the treatment, and it is convenient for the staff to quickly carry out the next batch of precious metal extraction and treatment, so that the efficiency of precious metal recovery and processing is higher, and it is more conducive to popularization and use.

[0005] This device can facilitate the output of precious metals after smelting, but there are still some shortcomings during use. The recovered materials are directly thrown into the hot melting device, which is not only inconvenient to transport the materials, but also the heating process is slow, which reduces the heat recovery efficiency. For this reason, we propose a pyrolysis furnace for precious metal recovery to solve the existing problems. Utility Model Content

[0006] The utility model aims to solve the problems existing in the background technology and propose a pyrolysis furnace for precious metal recovery.

[0007] To achieve the above object, the utility model provides the following technical solution: a pyrolysis furnace for precious metal recovery, comprising a purification structure, a crushing structure and a pyrolysis structure; the purification structure is located above the crushing structure, and the pyrolysis structure is located at the lower end of the crushing structure;

[0008] The pulverizing structure comprises:

[0009] The body is well-shaped;

[0010] The crushing rollers are symmetrically distributed and rotatably installed inside the upper end of the machine body;

[0011] The motor is fixed at the front end of the machine body;

[0012] The purification structure comprises:

[0013] A purification box, located above the machine body;

[0014] A support ring, located at the lower side of the purification box;

[0015] A filter chamber, located inside the lower end of the purification box;

[0016] The filter screen is embedded and installed inside the upper end of the filter chamber;

[0017] The fan is located inside the upper end of the purification box;

[0018] The pyrolysis structure comprises:

[0019] The pyrolysis tank is located inside the lower end of the machine body;

[0020] A pyrolysis assembly, located at the lower end of the pyrolysis tank;

[0021] Push plates are slidably installed inside the two ends of the pyrolysis tank;

[0022] The output end of the motor is connected to one end of the crushing roller.

[0023] Preferably, symmetrically distributed guide plates 1 are provided inside both sides of the machine body, and the guide plates 1 are located on the upper and lower sides of the crushing roller.

[0024] The materials inputted from the upper end of the machine body are transported to the center of the crushing roller through the guide plate, and the crushed materials fall downward from the center of the guide plate to guide and transport the waste for precious metal recovery.

[0025] Preferably, a smoke channel is opened inside one side of the lower end of the purification box, a guide surface is provided on the inner wall of the lower end of the filter chamber, and a discharge valve passing through the filter chamber is provided inside one side of the purification box.

[0026] The harmful gases generated when the waste for precious metal recovery is heated are transported to the filter chamber through the flue gas channel, and the dust intercepted inside the filter chamber is guided to the discharge valve through the guide surface to facilitate the discharge of the dust.

[0027] Preferably, a support net is provided on the inner wall of the upper end of the purification box, activated carbon is provided on the upper end of the support net, an inspection port is opened inside the upper end of the purification box, and an inspection door is provided inside the inspection port.

[0028] While the support net supports the activated carbon, the holes in the inner wall ensure the passage of gas, and the inspection port is convenient for replacing the activated carbon and inspecting the fan. The inspection door closes the inspection port to protect the internal structural parts of the purification box.

[0029] Preferably, lifting hydraulic rods are provided on both sides of the upper end of the machine body, and the upper ends of the lifting hydraulic rods are connected to the lower ends of the support rings.

[0030] When the lifting hydraulic rod is in operation, the support ring is pushed up, and the incoming heat drives the purification box to lift up, so that the opening at the upper end of the machine body is opened.

[0031] Preferably, the pyrolysis structure further comprises:

[0032] Pushing hydraulic rods are located on both sides of the lower end of the machine body;

[0033] A discharge port is provided inside the lower end of the pyrolysis tank;

[0034] The guide plate 2 is reciprocatingly distributed and located inside the lower end of the hot base groove;

[0035] Among them, the output end of the pusher hydraulic rod is slidably inserted into the pyrolysis tank, and one end is connected to the push plate;

[0036] Among them, the guide plates 2 are relatively distributed, and the lower position corresponds to the discharge port;

[0037] Wherein, a closed cover installed at the lower end of the discharge port is provided.

[0038] When the push hydraulic rod is in operation, it pushes the push plate to move relatively, discharges the hot molten precious metal through the discharge port, controls the opening and closing of the discharge port through the closing cover, and guides the hot metal through the guide plate.

[0039] Preferably, a support frame is sleeved on the outer wall of the body, the support frame is annular, and support legs are arranged at the four corners of the lower end.

[0040] The support frame is sleeved on the outer side of the machine body, and provides multi-point support to the lower end of the machine body through the support legs at the four corners.

[0041] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0042] 1. The utility model provides a crushing device at the feed inlet of the pyrolysis structure to crush the input waste into several small pieces to enter the pyrolysis tank. Crushing the waste can increase its surface area, and small particles of materials are more easily heated and require less energy, making it easier to contact precious metals or other substances during hot melt recovery in the pyrolysis furnace, thereby improving the recovery efficiency of precious metals. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0044] Figure 2 This is a schematic diagram of the three-dimensional structure of the pulverizing roller of the utility model from top view;

[0045] Figure 3 This is a schematic diagram of the main sectional three-dimensional structure of the purification structure of the utility model;

[0046] Figure 4 This is a schematic diagram of the main cross-sectional three-dimensional structure of the crushing structure of the utility model;

[0047] Figure 5 It is a schematic diagram of the main cross-sectional three-dimensional structure of the pyrolysis structure of the utility model.

[0048] Reference numerals:

[0049] 100, purification structure; 101, purification box; 102, support net; 103, filter net; 104, support ring; 105, flue gas channel; 106, filter chamber; 107, fan; 108, lifting hydraulic rod;

[0050] 200, crushing structure; 201, motor; 202, crushing roller; 203, guide plate 1; 204, support frame; 205, machine body;

[0051] 300, pyrolysis structure; 301, pyrolysis assembly; 302, pusher hydraulic rod; 303, pusher plate; 304, guide plate 2; 305, discharge port; 306, pyrolysis tank. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0053] like Figure 1-Figure 5As shown, a pyrolysis furnace for precious metal recovery proposed by the utility model comprises a purification structure 100, a crushing structure 200 and a pyrolysis structure 300; the purification structure 100 is located above the crushing structure 200, and the pyrolysis structure 300 is located at the lower end of the crushing structure 200;

[0054] The crushing structure 200 comprises:

[0055] The body 205 is well-shaped;

[0056] The crushing rollers 202 are symmetrically distributed and rotatably mounted inside the upper end of the machine body 205;

[0057] The motor 201 is fixedly mounted at the front end of the body 205;

[0058] The pyrolysis structure 300 comprises:

[0059] The pyrolysis tank 306 is located inside the lower end of the body 205;

[0060] The pyrolysis assembly 301 is located at the lower end of the pyrolysis tank 306;

[0061] Push plates 303 are slidably mounted inside the two ends of the pyrolysis tank 306;

[0062] The output end of the motor 201 is connected to one end of the crushing roller 202 .

[0063] Symmetrically distributed guide plates 203 are disposed inside both sides of the machine body 205 , and the guide plates 203 are located on the upper and lower sides of the crushing roller 202 .

[0064] The pyrolysis structure 300 further includes:

[0065] Pushing hydraulic rods 302 are located on both sides of the lower end of the machine body 205;

[0066] A discharge port 305 is provided inside the lower end of the pyrolysis tank 306;

[0067] The guide plate 2 304 is reciprocatingly distributed inside the lower end of the hot base groove;

[0068] The output end of the pusher hydraulic rod 302 is slidably inserted into the pyrolysis tank 306, and one end is connected to the push plate 303;

[0069] The guide plates 2 304 are relatively distributed, and the lower position corresponds to the discharge port 305;

[0070] Among them, a closed cover is provided at the lower end of the discharge port 305.

[0071] The outer wall of the body 205 is sleeved with a support frame 204, the support frame 204 is annular, and support legs are arranged at the four corners of the lower end.

[0072] Based on the implementation steps of Example 1: the precious metal recovered material is input through the opening at the upper end of the body 205, the motor 201 drives the crushing roller 202 to rotate relatively, and the precious metal recovered material is squeezed and crushed to form a number of small debris that enter the heat inlet tank, and is heated by the pyrolysis structure 300. The small-sized debris is better heated, and the crushed waste is easier to transport and process, avoiding the problem of blockage caused by large-sized waste, and the small debris is easier to control and manage in the pyrolysis furnace;

[0073] After the precious metal recovered material is hot-melted, the discharge port 305 is opened to discharge the material, and the push hydraulic rod 302 operates to push the push plate 303 to move relatively, pushing the liquid material in the middle, and after it becomes closed with the guide plate 304, the guide plate 304 cooperates with the guide plate 304, and the liquid material completely flows out, realizing the pyrolysis treatment of the precious metal recovery process.

[0074] like Figure 1-Figure 5 As shown, the pyrolysis furnace for precious metal recovery proposed by the utility model is compared with the first embodiment. This embodiment also includes: the purification structure 100 includes:

[0075] The purification box 101 is located above the machine body 205;

[0076] A support ring 104 is located at the lower side of the purification box 101;

[0077] The filter chamber 106 is located inside the lower end of the purification box 101;

[0078] The filter screen 103 is embedded and installed inside the upper end of the filter chamber 106;

[0079] The fan 107 is located inside the upper end of the purification box 101;

[0080] A smoke passage 105 is provided inside one side of the lower end of the purification box 101 , a guide surface is provided on the inner wall of the lower end of the filter chamber 106 , and a discharge valve passing through the filter chamber 106 is provided inside one side of the purification box 101 .

[0081] A support net 102 is disposed on the inner wall of the upper end of the purification box 101, and activated carbon is disposed on the upper end of the support net 102. An inspection port is provided inside the upper end of the purification box 101, and an inspection door is disposed inside the inspection port.

[0082] Lifting hydraulic rods 108 are disposed on both sides of the upper end of the machine body 205 , and the upper ends of the lifting hydraulic rods 108 are connected to the lower ends of the support rings 104 .

[0083] In this embodiment, during the pyrolysis process, the fan 107 is in operation, and smoke and harmful gases in the smoke are generated in the precious metal recovery materials. The smoke enters the filter chamber 106 through the smoke channel 105, and the dust in the smoke is intercepted by the filter 103. After the gas filters the dust, the suction airflow guides the gas. When it flows upward through the activated carbon, the harmful substances inside are adsorbed by the activated carbon, and the harmful gases are purified to reduce pollution to the environment, which is in line with the concept of environmental protection.

[0084] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

[0085] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A pyrolysis furnace for precious metal recovery, comprising a purification structure (100), a crushing structure (200) and a pyrolysis structure (300); characterized in that: The purification structure (100) is located above the pulverizing structure (200), and the pyrolysis structure (300) is located at the lower end of the pulverizing structure (200); The pulverizing structure (200) comprises: The body (205) is well-shaped; The crushing rollers (202) are symmetrically distributed and rotatably mounted inside the upper end of the machine body (205); The motor (201) is fixedly mounted at the front end of the machine body (205); The purification structure (100) comprises: A purification box (101) is located above the machine body (205); A support ring (104) is located on the side of the lower end of the purification box (101); A filter chamber (106) is located inside the lower end of the purification box (101); The filter screen (103) is embedded and installed inside the upper end of the filter chamber (106); A fan (107) is located inside the upper end of the purification box (101); The pyrolysis structure (300) comprises: A pyrolysis tank (306) is located inside the lower end of the body (205); A pyrolysis assembly (301) is located at the lower end of the pyrolysis tank (306); Push plates (303) are slidably mounted inside both ends of the pyrolysis tank (306); The output end of the motor (201) is connected to one end of the crushing roller (202).

2. A pyrolysis furnace for precious metal recovery according to claim 1, characterized in that: Symmetrically distributed guide plates (203) are provided inside both sides of the machine body (205), and the guide plates (203) are located on the upper and lower sides of the crushing roller (202).

3. A pyrolysis furnace for precious metal recovery according to claim 1, characterized in that: A smoke passage (105) is provided inside one side of the lower end of the purification box (101), a flow guide surface is provided on the inner wall of the lower end of the filter chamber (106), and a discharge valve passing through the filter chamber (106) is provided inside one side of the purification box (101).

4. A pyrolysis furnace for precious metal recovery according to claim 1, characterized in that: A support net (102) is provided on the inner wall of the upper end of the purification box (101), activated carbon is provided on the upper end of the support net (102), and an inspection opening is provided inside the upper end of the purification box (101), and an inspection door is provided inside the inspection opening.

5. A pyrolysis furnace for precious metal recovery according to claim 1, characterized in that: Lifting hydraulic rods (108) are provided on both sides of the upper end of the machine body (205), and the upper ends of the lifting hydraulic rods (108) are connected to the lower ends of the support rings (104).

6. A pyrolysis furnace for precious metal recovery according to claim 1, characterized in that: The pyrolysis structure (300) further comprises: Pushing hydraulic rods (302) are located on both sides of the lower end of the machine body (205); A discharge port (305) is provided inside the lower end of the pyrolysis tank (306); A second guide plate (304) is reciprocatingly distributed and located inside the lower end of the hot base groove; The output end of the pusher hydraulic rod (302) is slidably inserted into the pyrolysis tank (306), and one end is connected to the push plate (303); The guide plates 2 (304) are relatively distributed, and the lower position corresponds to the discharge port (305); Wherein, a closed cover is provided at the lower end of the discharge port (305).

7. A pyrolysis furnace for precious metal recovery according to claim 1, characterized in that: The outer wall of the machine body (205) is sleeved with a support frame (204), the support frame (204) is annular, and support legs are arranged at the four corners of the lower end.

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