Industrial salt hazardous waste fused salt kiln treatment equipment

Abstract

The utility model discloses industrial salt hazardous waste fused salt furnace treatment equipment, which belongs to the technical field of industrial waste treatment and comprises a furnace body, a preheating section is arranged at the top end of the furnace body, a feeding port is connected to the top end of the preheating section, a heating section is arranged in the middle of the furnace body, a refining section is arranged at the bottom of the furnace body, and the refining section is connected to the feeding port. One side of the preheating section is communicated and connected with an air delivery pump, one side of the air delivery pump is fixedly connected with an air delivery pipe, one end of the air delivery pipe is fixedly connected with a connecting pipe, one end of the connecting pipe is fixedly connected with the top end of the quench tower, one side of the quench tower is communicated and connected with a bag-type dust collector, and the bag-type dust collector is fixedly connected with the air delivery pipe. Through the arrangement of the preheating section, the heating section and the refining section, the waste salt melting and decomposing speed is increased, meanwhile, the waste heat of waste gas is used for achieving the preheating effect on waste salt, and energy consumption is reduced.

Description

A molten salt furnace treatment device for hazardous industrial salt waste Technical Field

[0001] This utility model belongs to the field of industrial waste treatment technology, specifically relating to an industrial salt hazardous waste molten salt kiln disposal equipment. Background Technology

[0002] Industry is the social material production sector that involves the extraction and collection of natural resources and the processing of various raw materials. Industrial waste salt refers to various waste residues, dust, and other wastes discharged during industrial production processes. For example, in the production of organic and inorganic chemical products, a large amount of mixed waste salt containing salt and organic matter is generated. This crystalline salt contains a large number of organic or inorganic impurities and cannot be used as industrial raw material salt. If it is piled up for a long time, it will occupy a large amount of space and cause serious pollution and damage to the ecological environment. Kiln treatment equipment is a device used to treat industrial waste salt.

[0003] Existing patent number CN202220606432.7 describes an industrial salt hazardous waste molten salt kiln treatment device, including a base plate. A shell is fixedly connected to the bottom of the base plate, a feed pipe is fixedly connected to one side of the shell, and a first filter screen is fixedly connected to the inner wall of the shell. This utility model, through the arrangement of a base plate, shell, feed pipe, first filter screen, burner body, inclined plate, conveying pipe, motor, movable rod, and conveying blades, allows waste salt to enter the shell through the feed pipe, fall onto the first filter screen, and be burned by the burner body. The harmful substances in the waste salt are oxidized, reducing its volume. After being filtered by the first filter screen, it falls onto the inclined plate and slides down into the conveying pipe. This kiln treatment device facilitates the treatment of industrial waste salt, preventing excessive accumulation of industrial waste salt, thus avoiding environmental pollution and harm. It also reduces workload, meets work needs, and improves the efficiency of the kiln treatment device.

[0004] The aforementioned patent also has some shortcomings. The treatment equipment uses a single heat source, which not only has high energy consumption but also poor fluidity of molten salt, resulting in incomplete separation of impurities. At the same time, it is not sufficient to treat nitrogen oxides and volatile organic compounds (VOCs) in the waste gas. Therefore, we propose an industrial salt hazardous waste molten salt kiln treatment equipment. Summary of the Invention

[0005] The purpose of this invention is to provide an industrial salt hazardous waste molten salt kiln disposal equipment to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an industrial salt hazardous waste molten salt kiln treatment equipment, comprising a furnace body, a preheating section at the top of the furnace body, a feeding port connected to the top of the preheating section, a heating section in the middle of the furnace body, a refining section at the bottom of the furnace body, a gas pump connected to one side of the preheating section, a gas supply pipe fixedly connected to one side of the gas pump, a connecting pipe fixedly connected to one end of the gas supply pipe, a connecting pipe fixedly connected to one end of the connecting pipe, a quench tower fixedly connected to the top of the quench tower, a bag filter connected to one side of the quench tower, and a denitrification tower connected to one side of the bag filter.

[0007] Preferably, the gas supply pipe is spirally arranged around the outer wall of the preheating section, and one side of the gas supply pipe is fitted to the outer wall of the preheating section.

[0008] Preferably, a pure oxygen burner is fixedly installed on the outer wall of the heating section, and the output end of the pure oxygen burner is located on one side of the interior of the heating section.

[0009] Preferably, the inner wall of the heating section is provided with an electrode array heating tube, which is vertically and uniformly arranged and fixed around the inner wall of the heating section.

[0010] Preferably, a filter screen is fixedly connected between the top end of the refining section and the bottom end of the heating section, and an opening and closing door is provided on one side of the refining section.

[0011] Preferably, the outer wall of the preheating section is provided with an outer shell, and a heat insulation cavity is provided between the outer shell and the outer wall of the preheating section, and the gas supply pipe is located inside the heat insulation cavity.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By setting up preheating, heating and refining sections, the speed of waste salt melting and decomposition is not only improved, but the waste gas residual heat is also used to achieve the preheating effect of waste salt, thus reducing energy consumption. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 is a side view of the present invention.

[0016] Figure 3 is a schematic diagram of the top structure of this utility model;

[0017] Figure 4 is a schematic diagram of the internal cross-sectional structure of the furnace body of this utility model.

[0018] In the diagram: 1. Furnace body; 101. Preheating section; 102. Feed port; 103. Heating section; 104. Refining section; 105. Opening and closing door; 106. Pure oxygen burner; 107. Electrode array heating tube; 2. Outer shell; 3. Gas pump; 4. Gas pipe; 5. Insulation chamber; 6. Filter screen; 7. Connecting pipe; 8. Quenching tower; 9. Bag filter; 10. Denitrification tower. Detailed Implementation

[0019] 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.

[0020] Please refer to Figures 1-4. This utility model provides a technical solution: an industrial salt hazardous waste molten salt kiln treatment equipment, including a furnace body 1, a preheating section 101 at the top of the furnace body 1, a feeding port 102 connected to the top of the preheating section 101, a heating section 103 in the middle of the furnace body 1, a refining section 104 at the bottom of the furnace body 1, a gas pump 3 connected to one side of the preheating section 101, a gas pipe 4 fixedly connected to one side of the gas pump 3, a connecting pipe 7 fixedly connected to one end of the gas pipe 4, a connecting pipe 7 fixedly connected to one end of the connecting pipe 7, a quench tower 8 fixedly connected to the top of the quench tower 8, a bag filter 9 connected to one side of the bag filter 9, and a denitrification tower 10 connected to one side of the bag filter 9.

[0021] In this embodiment, the quench tower 8, the bag filter 9, and the denitrification tower 10 are all existing technical structures and will not be described in detail here.

[0022] After being crushed, the waste salt is fed into the furnace body 1 through the feeding port 102. The preheating section 101 preheats the waste salt, removing surface moisture and low-boiling-point organic matter. When the waste salt enters the heating section 103, the temperature of the molten salt continues to rise, and the organic matter is fully decomposed. Salt particles and heavy metals settle back into the refining section 104 for later use. The generated waste gas is drawn by the gas pump 3 and transported to the quench tower 8 through the gas pipe 4 for rapid crystallization. Then, the salt dust is captured by the bag filter 9. The NOx concentration can be reduced to below 50 mg / m3 by the denitrification tower 10, facilitating the emission of waste gas.

[0023] Specifically, the gas supply pipe 4 is spirally arranged around the outer wall of the preheating section 101, and one side of the gas supply pipe 4 is fitted to the outer wall of the preheating section 101.

[0024] In this embodiment, high-temperature waste gas is transported inside the gas delivery pipe 4 by the gas delivery pump 3. The gas delivery pipe 4 is arranged to be coiled around the outer wall of the preheating section 101, so that the high temperature generated by the waste gas can be transferred to the interior of the preheating section 101 to achieve the preheating effect of waste salt. By recovering and utilizing the residual heat, energy consumption is reduced.

[0025] Specifically, a pure oxygen burner 106 is fixedly installed on the outer wall of the heating section 103, and the output end of the pure oxygen burner 106 is located on one side inside the heating section 103.

[0026] In this embodiment, the waste salt inside the heating section 103 can be rapidly heated and heated by the pure oxygen burner 106, thereby improving the heating efficiency.

[0027] Specifically, the inner wall of the heating section 103 is provided with an electrode array heating tube 107, which is vertically and uniformly arranged and fixed around the inner wall of the heating section 103.

[0028] In this embodiment, the electrode array heating tube 107 is arranged around the inner wall of the heating section 103, which can fully decompose the organic matter in the waste salt and improve the efficiency of the work.

[0029] Specifically, a filter screen 6 is fixedly connected between the top of the refining section 104 and the bottom of the heating section 103, and an opening and closing door 105 is provided on one side of the refining section 104.

[0030] In this embodiment, the filter screen 6 can filter out smaller amounts of salt, allowing them to be collected inside the refining section 104 for later use.

[0031] Specifically, the outer wall of the preheating section 101 is provided with an outer shell 2, and an insulation cavity 5 is provided between the outer shell 2 and the outer wall of the preheating section 101. The gas supply pipe 4 is located inside the insulation cavity 5.

[0032] In this embodiment, the temperature of the exhaust gas transmitted from the gas pipe 4 can be kept warm by the heat insulation cavity 5, so that the heat can be better conducted to the interior of the preheating section 101, thereby achieving the preheating effect of the waste salt.

[0033] 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. An industrial salt hazardous waste molten salt kiln disposal apparatus comprising a furnace body (1), characterized in that: The furnace body (1) is provided with a preheating section (101) at the top and a feeding port (102) at the top. The furnace body (1) is provided with a heating section (103) in the middle and a refining section (104) at the bottom. A gas pump (3) is connected to one side of the preheating section (101). A gas pipe (4) is fixedly connected to one side of the gas pump (3). A connecting pipe (7) is fixedly connected to one end of the gas pipe (4). One end of the connecting pipe (7) is fixedly connected to the top of the quench tower (8). A bag filter (9) is connected to one side of the quench tower (8). A denitrification tower (10) is connected to one side of the bag filter (9).

2. The industrial salt hazardous waste molten salt kiln device according to claim 1, characterized in that: The gas supply pipe (4) is spirally arranged around the outer wall of the preheating section (101), and one side of the gas supply pipe (4) is fitted to the outer wall of the preheating section (101).

3. The industrial salt hazardous waste molten salt kiln disposal equipment according to claim 1, characterized in that: A pure oxygen burner (106) is fixedly installed on the outer wall of the heating section (103), and the output end of the pure oxygen burner (106) is located on one side inside the heating section (103).

4. The industrial salt hazardous waste fused salt kiln disposal equipment according to claim 1, characterized in that: The inner wall of the heating section (103) is provided with an electrode array heating tube (107), which is vertically and uniformly arranged and fixed around the inner wall of the heating section (103).

5. The industrial salt hazardous waste molten salt kiln treatment equipment according to claim 1, characterized in that: A filter screen (6) is fixedly connected between the top end of the refining section (104) and the bottom end of the heating section (103), and an opening and closing door (105) is provided on one side of the refining section (104).

6. The industrial salt hazardous waste molten salt kiln treatment equipment according to claim 1, characterized in that: The preheating section (101) is provided with an outer shell (2) on its outer wall, and a heat preservation cavity (5) is provided between the outer shell (2) and the outer wall of the preheating section (101). The gas supply pipe (4) is located inside the heat preservation cavity (5).

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