A calcining furnace having exhaust gas treatment structure

Abstract

This utility model relates to the field of calcining furnace technology and discloses a calcining furnace with a waste gas treatment structure. The furnace includes a furnace body with a furnace door on the front and supporting legs fixedly installed at the bottom. A waste gas treatment mechanism extends from the top of the furnace body to the outside, and a calcining gas supply mechanism is located inside the furnace body. The waste gas treatment mechanism includes an exhaust assembly and a filter assembly. The exhaust assembly is located at the top of the furnace body and extends to the outside, while the filter assembly is located on the back of the exhaust assembly. This calcining furnace with a waste gas treatment structure discharges waste gas from inside the furnace body into a purification tank through an exhaust pipe. The waste gas is purified by a purification liquid in the purification tank, and then undergoes secondary filtration through filter media inside a packed mesh frame before being discharged. This two-stage purification and filtration process improves the treatment effect and facilitates the replacement of the purification filter material.

Description

Technical Field

[0001] This utility model relates to the field of calcining furnace technology, specifically a calcining furnace with a waste gas treatment structure. Background Technology

[0002] A calcining furnace is a thermal device used to heat-treat carbon raw materials at high temperatures to improve their properties. During the combustion process, the calcining furnace produces harmful gases, which, if directly emitted, would pollute the air. Therefore, the exhaust gases from the calcining furnace need to be treated.

[0003] According to the description in the patent application (authorization announcement number: CN221764181 U) of a calcining furnace with a gas filtration structure, "This utility model provides a calcining furnace with a gas filtration structure, relating to the field of calcining furnace technology. It includes a main body, with a feed port fixedly mounted at the upper end and a slag discharge port fixedly connected at the lower end. A carrier plate is fixedly connected to the inner surface of the main body, a heating plate is fixedly installed on the inner surface of the main body, a dispersion plate is fixedly mounted on the inner surface of the main body, and an oxygen pipe is fixedly connected to the side of the main body. The dispersion plate disperses the heat generated during combustion, making the upward-moving heat more uniform. During combustion, oxygen is injected through the oxygen pipe to supply sufficient oxygen to the main body, allowing the material on the carrier plate to be fully heat-treated. A filter element is installed at the feed port, so that when smoke drifts out from the feed port, it enters the filter element, where the filter screen filters the particles in the smoke, thereby reducing the harmfulness of the smoke and lowering the risk to operators."

[0004] Regarding the above description, the applicant believes the following issues exist:

[0005] This utility model filters the exhaust gas generated by the calcining furnace through a filter element during use. However, it only filters the gas through an internal filter screen, resulting in a limited treatment effect. Furthermore, the internal filter screen is inconvenient to replace and clean. In addition, during the calcination process, the oxygen pipe supplies gas directly into the furnace, which is far from the combustion position of the fuel pipe, resulting in incomplete combustion. Moreover, the material is placed on a carrier plate, making it inconvenient to handle the material. Therefore, it is necessary to improve the calcining furnace by incorporating an exhaust gas treatment structure to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a calcining furnace with a waste gas treatment structure to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a calcining furnace with a waste gas treatment structure, comprising a furnace body, a furnace door provided on the front of the furnace body, a support foot fixedly installed at the bottom of the furnace body, a waste gas treatment mechanism extending from the top of the furnace body to the outside, and a calcining gas supply mechanism provided inside the furnace body.

[0008] The exhaust gas treatment mechanism includes an exhaust assembly and a filter assembly. The exhaust assembly is located at the top of the furnace body and extends to the outside, while the filter assembly is located at the back of the exhaust assembly.

[0009] The exhaust assembly includes an exhaust pipe, which is fixedly installed on the top of the furnace body. A purification tank is fixedly installed at the end of the exhaust pipe away from the furnace body. A connecting pipe is fixedly installed on the top of the purification tank (412), and a liquid inlet pipe is fixedly installed on the top of the purification tank. A drain pipe is fixedly installed at the bottom of the purification tank (412) to facilitate the purification of the discharged exhaust gas.

[0010] Preferably, the top of the purification tank is provided with a through hole, and the end of the exhaust pipe away from the furnace body extends through the through hole into the interior of the purification tank, so that the exhaust pipe can discharge the waste gas into the purification liquid in the purification tank.

[0011] Preferably, the filter assembly includes a filter box, with the end of the connecting pipe fixedly installed away from the purification tank, a discharge pipe fixedly installed on the back of the filter box, a packing mesh frame inside the filter box, a sealing cover slidably installed on the top of the packing mesh frame, and a handle fixedly installed on the top of the sealing cover to facilitate secondary filtration of the purified exhaust gas.

[0012] Preferably, the packing mesh frame has air holes on both sides near the connecting pipe and the discharge pipe, the bottom of the sealing cover has a limiting groove, and the top of the packing mesh frame has a protruding structure that slides with the limiting groove, so as to facilitate the placement of filter packing in the packing mesh frame.

[0013] Preferably, the calcination gas supply mechanism includes a limiting rail, which is fixedly installed on the inner walls of the left and right sides of the furnace body. Rollers are rotatably installed inside the limiting rail, and a feeding mesh plate is slidably installed inside the limiting rail. A fuel pipe is fixedly installed at the bottom of the furnace body, and an oxygen pipe is provided at the top of the furnace body to facilitate the calcination of materials inside the furnace body.

[0014] Preferably, ten limiting rails are provided, and five are arranged in a symmetrical array on the left and right inner walls of the furnace body to facilitate the sliding placement of the feeding mesh plate.

[0015] Preferably, the fuel pipe and the gas supply pipe are staggered, and a through hole is provided on the back of the furnace body, through which the fuel pipe and the gas supply pipe extend to the outside of the furnace body, which facilitates improved combustion efficiency.

[0016] Compared with the prior art, this utility model provides a calcining furnace with a waste gas treatment structure, which has the following beneficial effects:

[0017] 1. The calcining furnace with a waste gas treatment structure, through the waste gas treatment mechanism, discharges the waste gas inside the furnace into the purification tank through the exhaust pipe during use. The waste gas is then purified by the purification liquid in the purification tank, and the purified waste gas is discharged after secondary filtration through the filter media inside the packing mesh frame. The two purification and filtration processes improve the treatment effect and facilitate the replacement of the purification filter material.

[0018] 2. The calcining furnace with a waste gas treatment structure, through the calcination gas supply mechanism, places materials on the feeding screen during use. The feeding screen slides on the limiting rail, which facilitates the picking up and placing of materials. At the same time, the staggered fuel pipes and gas supply pipes ensure complete combustion of fuel and improve combustion efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0021] Figure 2 This is a front sectional view of the present invention.

[0022] Figure 3 This is a cross-sectional view of the waste gas treatment mechanism of this utility model;

[0023] Figure 4 This is a schematic diagram of the anatomical structure of the filter box and connected mechanism of this utility model.

[0024] Figure 5 This is a schematic diagram of the intersecting structure of the limiting rail and the connected mechanism of this utility model;

[0025] Figure 6 This is a schematic diagram of the external structure of the fuel pipe and oxygen pipe of this utility model.

[0026] In the diagram: 1. Furnace body; 2. Furnace door; 3. Support legs; 4. Waste gas treatment mechanism; 41. Exhaust assembly; 411. Exhaust pipe; 412. Purification tank; 413. Connecting pipe; 414. Liquid inlet pipe; 415. Sewage discharge pipe; 42. Filter assembly; 421. Filter box; 422. Discharge pipe; 423. Packing mesh frame; 424. Sealing cover; 425. Handle; 5. Calcination gas supply mechanism; 51. Limiting rail; 52. Roller; 53. Discharge mesh plate; 54. Fuel pipe; 55. Oxygen pipe. Detailed Implementation

[0027] 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.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0029] To achieve filtration of the generated exhaust gas, please refer to [link / reference]. Figure 1-4 This utility model provides a technical solution: a calcining furnace with a waste gas treatment structure, including a furnace body 1, a furnace door 2 on the front of the furnace body 1, a support foot 3 fixedly installed at the bottom of the furnace body 1, a waste gas treatment mechanism 4 extending from the top of the furnace body 1 to the outside, and a calcining gas supply mechanism 5 inside the furnace body 1.

[0030] The exhaust gas treatment mechanism 4 includes an exhaust assembly 41 and a filter assembly 42. The exhaust assembly 41 is located on the top of the furnace body 1 and extends to the outside, while the filter assembly 42 is located on the back of the exhaust assembly 41.

[0031] The exhaust assembly 41 includes an exhaust pipe 411, which is fixedly installed on the top of the furnace body 1. A purification tank 412 is fixedly installed at the end of the exhaust pipe 411 away from the furnace body 1. A connecting pipe 413 is fixedly installed on the top of the purification tank (412), a liquid inlet pipe 414 is fixedly installed on the top of the purification tank (412), and a drain pipe 415 is fixedly installed at the bottom of the purification tank (412) to facilitate the purification of the discharged exhaust gas.

[0032] Furthermore, the top of the purification tank 412 is provided with a through hole, and the end of the exhaust pipe 411 away from the furnace body 1 extends through the through hole into the interior of the purification tank 412, so that the exhaust pipe 411 can discharge the exhaust gas into the purification liquid of the purification tank 412.

[0033] Furthermore, the filter assembly 42 includes a filter box 421, with the end of the connecting pipe 413 fixedly installed away from the purification tank 412. A discharge pipe 422 is fixedly installed on the back of the filter box 421. A packing mesh frame 423 is provided inside the filter box 421. A sealing cover 424 is slidably installed on the top of the packing mesh frame 423. A handle 425 is fixedly installed on the top of the sealing cover 424 to facilitate secondary filtration of the purified exhaust gas.

[0034] Furthermore, air holes are provided on both sides of the packing mesh frame 423 near the connecting pipe 413 and the discharge pipe 422, a limiting groove is provided at the bottom of the sealing cover 424, and a protruding structure is provided on the top of the packing mesh frame 423 to slide and install with the limiting groove, so as to facilitate the placement of filter packing in the packing mesh frame 423. Example

[0035] To facilitate material placement and improve combustion efficiency, this invention provides another embodiment; please refer to [link / reference]. Figure 5 and Figure 6 Furthermore, in conjunction with Embodiment 1, it is further found that the calcination gas supply mechanism 5 includes a limiting rail 51, which is fixedly installed on the inner walls of the left and right sides of the furnace body 1. Rollers 52 are rotatably installed inside the limiting rail 51, and a feeding mesh plate 53 is slidably installed inside the limiting rail 51. A fuel pipe 54 is fixedly installed at the bottom of the furnace body 1, and an oxygen pipe 55 is provided at the top of the furnace body 1 to facilitate the calcination of materials inside the furnace body 1.

[0036] Furthermore, ten limiting rails 51 are provided, and five are arranged in a symmetrical array on the left and right inner walls of the furnace body 1 to facilitate the sliding placement of the feeding mesh plate 53.

[0037] Furthermore, the fuel pipe 54 and the gas supply pipe are distributed alternately, and a through hole is provided on the back of the furnace body 1. The fuel pipe 54 and the gas supply pipe extend through the through hole to the outside of the furnace body 1, which facilitates the improvement of combustion efficiency.

[0038] In actual operation, when this device is used, the furnace door 2 is opened, the feeding screen 53 is pulled out from the limiting rail 51, the feeding screen 53 is assisted by the roller 52 to slide out, the material is then placed on the feeding screen 53, and the feeding screen 53 is slid into the inside of the limiting rail 51. Then the furnace door 2 is closed, and the material inside the furnace body 1 is calcined through the fuel pipe 54 and the oxygen pipe 55.

[0039] During the calcination process, ammonia water is added into the purification tank 412 through the liquid inlet pipe 414, and activated carbon packing is placed into the packing mesh frame 423. Then, the sealing cap 424 is slid into the packing mesh frame 423, and the packing mesh frame 423 is placed into the filter box 421 through the handle 425. The generated waste gas enters the purification tank 412 through the exhaust pipe 411, where it is purified by the ammonia water. The purified waste gas then enters the packing mesh frame 423 in the filter box 421 through the connecting pipe 413, where it undergoes secondary filtration by the activated carbon. The filtered waste gas is then discharged through the discharge pipe 422.

[0040] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A calcining furnace having an exhaust gas treatment structure, comprising a furnace body (1), characterized by: The furnace body (1) has a furnace door (2) on the front, a support foot (3) is fixedly installed at the bottom of the furnace body (1), a waste gas treatment mechanism (4) extends to the outside of the top of the furnace body (1), and a calcination gas supply mechanism (5) is installed inside the furnace body (1). The exhaust gas treatment mechanism (4) includes an exhaust assembly (41) and a filter assembly (42). The exhaust assembly (41) is located on the top of the furnace body (1) and extends to the outside. The filter assembly (42) is located on the back of the exhaust assembly (41). The exhaust assembly (41) includes an exhaust pipe (411), which is fixedly installed on the top of the furnace body (1). A purification tank (412) is fixedly installed at the end of the exhaust pipe (411) away from the furnace body (1). A connecting pipe (413) is fixedly installed on the top of the purification tank (412). A liquid inlet pipe (414) is fixedly installed on the top of the purification tank (412). A drain pipe (415) is fixedly installed at the bottom of the purification tank (412).

2. A calciner having a waste gas treatment structure according to claim 1, characterized in that: The top of the purification tank (412) is provided with a through hole, and the end of the exhaust pipe (411) away from the furnace body (1) extends through the through hole into the interior of the purification tank (412).

3. The calciner having a waste gas treatment structure according to claim 1, characterized by: The filter assembly (42) includes a filter box (421), the filter box (421) is fixedly installed with a connecting pipe (413) at one end away from the purification tank (412), a discharge pipe (422) is fixedly installed on the back of the filter box (421), a packing mesh frame (423) is provided inside the filter box (421), a sealing cover (424) is slidably installed on the top of the packing mesh frame (423), and a handle (425) is fixedly installed on the top of the sealing cover (424).

4. A calcining furnace with a waste gas treatment structure according to claim 3, characterized in that: The packing mesh frame (423) has air holes on both sides near the connecting pipe (413) and the discharge pipe (422), the bottom of the sealing cover (424) has a limiting groove, and the top of the packing mesh frame (423) has a protruding structure that slides with the limiting groove.

5. A calcining furnace with a waste gas treatment structure according to claim 1, characterized in that: The calcination gas supply mechanism (5) includes a limiting rail (51), which is fixedly installed on the inner walls of the left and right sides of the furnace body (1). Rollers (52) are rotatably installed inside the limiting rail (51), and a feeding mesh plate (53) is slidably installed inside the limiting rail (51). A fuel pipe (54) is fixedly installed at the bottom of the furnace body (1), and an oxygen pipe (55) is provided at the top of the furnace body (1).

6. A calcining furnace with a waste gas treatment structure according to claim 5, characterized in that: The limiting rails (51) are provided in ten units, and five units are arranged in a symmetrical array on the left and right inner walls of the furnace body (1).

7. A calcining furnace with a waste gas treatment structure according to claim 5, characterized in that: The fuel pipe (54) and the gas supply pipe are interspersed, and a through hole is provided on the back of the furnace body (1), and the fuel pipe (54) and the gas supply pipe extend through the through hole to the outside of the furnace body (1).

Images