Cupola furnace with flue gas treatment structure

Abstract

The utility model discloses a cupola furnace with a flue gas treatment structure, relates to the technical field of cupola furnaces, and aims to solve the problems that in the prior art, flue gas of the cupola furnace contains a large amount of heat, but the flue gas heat cannot be recycled, so that heat resources are wasted, and the practicability is poor. A flue gas pipeline is fixedly installed above the cupola furnace body, a recycling barrel is fixedly installed at the end, away from the cupola furnace body, of the flue gas pipeline, a purifying box is fixedly installed on one side of the recycling barrel, an output pipe is fixedly installed above the purifying box, and a filtering plate is fixedly installed in the recycling barrel. A cylinder is arranged in the recycling barrel along one side of the filter plate, a flow guide block is fixedly mounted on one side of the cylinder, the flow guide block is in a frustum shape, fixing columns are symmetrically and fixedly mounted on the upper portion and the lower portion of the cylinder correspondingly, and the fixing columns are fixedly connected with the recycling barrel.

Description

Technical Field

[0001] The utility model relates to the technical field of cupolas, in particular to a cupola with a flue gas treatment structure. Background Technique

[0002] A cupola is a high-temperature reaction device, mainly used for the important process of melting cast iron in foundry production. A cupola is a vertical cylindrical melting furnace. Since its furnace top opening faces upward, it is called a cupola. It is mainly used to melt cast iron blocks into molten iron and then pour it into a sand mold. After cooling, the mold is opened to obtain a casting. During the use of the cupola, in order to improve environmental protection, it is necessary to treat the flue gas and reduce the internal impurities.

[0003] For example, the authorized patent with the publication number CN217737931U (a cupola for casting): includes a cupola main body. A flue is installed on the left side of the top end of the cupola main body. The outer wall of the cupola main body is equipped with a first purification mechanism; the first purification mechanism includes a water tank installed at the bottom end of the cupola main body. A water pump is screw-connected to the front side of the top end of the water tank. One end of a water outlet pipe is installed at the top end of the water pump, and the other end of the water outlet pipe extends into the inner cavity of the cupola main body and is equipped with a spray head.

[0004] Although the above-mentioned prior art is convenient for purifying flue gas, it cannot recover and utilize the heat of the flue gas. The flue gas inside the cupola contains a large amount of heat. Direct cooling treatment leads to waste of heat resources and poor practicability. Therefore, there is an urgent need in the market to develop a cupola with a flue gas treatment structure to help people solve existing problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a cupola with a flue gas treatment structure, so as to solve the problem that the flue gas inside the cupola in the above-mentioned background technique contains a large amount of heat, but the heat of the flue gas cannot be recovered and utilized, resulting in waste of heat resources and poor practicability.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A cupola with a flue gas treatment structure, including a cupola body, a flue gas pipe is fixedly installed above the cupola body, a recovery cylinder is fixedly installed at one end of the flue gas pipe away from the cupola body, a purification box is fixedly installed on one side of the recovery cylinder, an output pipe is fixedly installed above the purification box, a filter plate is fixedly installed inside the recovery cylinder, a cylinder is arranged along one side of the filter plate inside the recovery cylinder, a guide block is fixedly installed on one side of the cylinder, and the guide block is arranged in a frustum shape, fixing columns are symmetrically and fixedly installed above and below the cylinder respectively, and the fixing columns are fixedly connected with the recovery cylinder, a heat exchange pipe is arranged outside the cylinder, and the heat exchange pipe is arranged in a spiral shape, a water inlet pipe and a water outlet pipe are respectively fixedly installed below the recovery cylinder, the water inlet pipe is communicated with one end of the heat exchange pipe, and the water outlet pipe is communicated with the other end of the heat exchange pipe.

[0007] Preferably, a guide pipe is fixedly installed inside the purification box, the guide pipe is communicated with the recovery cylinder, a water distribution plate is arranged above the guide pipe inside the purification box, and a water spray head is fixedly installed below the water distribution plate.

[0008] Preferably, a partition plate is fixedly installed below the inside of the purification box, a water cavity is arranged along one side of the partition plate inside the purification box, an equipment cavity is arranged along the other side of the partition plate inside the purification box, a water pump is arranged inside the equipment cavity, and the water pump is fixedly connected with the purification box by screws.

[0009] Preferably, a water suction pipe is fixedly installed on one side of the water pump, one end of the water suction pipe penetrates through the partition plate and enters the inside of the water cavity, a water delivery pipe is fixedly installed on the other side of the water pump, one end of the water delivery pipe is fixedly connected with the water distribution plate, a sealing plate is arranged above the water pump, and the purification box and the partition plate are both welded to the sealing plate.

[0010] Preferably, a dehumidifier is arranged above the inside of the purification box, sealing baffles are symmetrically and fixedly installed on both sides of the dehumidifier respectively, and the sealing baffles are fixedly connected with the purification box by screws.

[0011] Preferably, an adsorption box is arranged above the dehumidifier inside the purification box, track plates are symmetrically arranged on both sides of the adsorption box respectively, and the track plates are fixedly connected with the purification box by screws.

[0012] Preferably, an impurity box is fixedly installed below the recovery cylinder, a blanking hole is arranged at the connection of the recovery cylinder and the impurity box, and an inclined plate is arranged inside the blanking hole.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] 1. The utility model installs a recovery cylinder at one end of the flue gas pipeline, and a heat exchange tube is arranged inside the recovery cylinder, so that through heat exchange, the heat in the flue gas can be transferred to the water body inside the heat exchange tube, realizing the recovery and utilization of the heat in the flue gas, increasing the utilization ability of resources, and the provided cylinder can guide the flue gas, enabling the flue gas to fully contact the heat exchange tube, improving the recovery ability of the heat in the flue gas and increasing the practicability.

[0015] 2. The utility model arranges a water separation plate inside the purification box and a water spray head below the water separation plate, so that after the flue gas flows into the purification box, the water spray head sprays water downward, which can wet and purify the flue gas, remove the residual impurities in the flue gas and fully cool the flue gas, increasing the practicability.

[0016] 3. The utility model arranges an adsorption box inside the purification box, and through the activated carbon particles inside the adsorption box, the flue gas can be adsorbed and purified, further improving the treatment ability of the flue gas and increasing the practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a cupola furnace with a flue gas treatment structure of the present utility model;

[0018] Figure 2 It is a cross-sectional view of the recovery cylinder and the purification box of the present utility model;

[0019] Figure 3 It is an enlarged schematic diagram of part A of the present utility model;

[0020] Figure 4 It is an enlarged schematic diagram of part B of the present utility model.

[0021] In the figure: 1, cupola furnace body; 2, flue gas pipeline; 3, recovery cylinder; 4, impurity box; 5, water inlet pipe; 6, water outlet pipe; 7, purification box; 8, output pipe; 9, filter plate; 10, guide block; 11, cylinder; 12, heat exchange tube; 13, guide pipe; 14, partition board; 15, water suction pipe; 16, water pump; 17, water delivery pipe; 18, sealing plate; 19, water separation plate; 20, water spray head; 21, dehumidifier; 22, adsorption box; 23, track plate; 24, inclined plate; 25, blanking hole; 26, fixed column. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0023] Please refer to Figures 1-4, an embodiment provided by the utility model: a cupola with a flue gas treatment structure, including a cupola body 1, a flue gas pipe 2 is fixedly installed above the cupola body 1, a recovery cylinder 3 is fixedly installed at one end of the flue gas pipe 2 away from the cupola body 1, a purification box 7 is fixedly installed on one side of the recovery cylinder 3, an output pipe 8 is fixedly installed above the purification box 7, a filter plate 9 is fixedly installed inside the recovery cylinder 3, the filter plate 9 is set as a conical filter plate, a cylinder 11 is arranged along one side of the filter plate 9 inside the recovery cylinder 3, a diversion block 10 is fixedly installed on one side of the cylinder 11, and the diversion block 10 is set as a frustum of a cone, fixing columns 26 are symmetrically and fixedly installed above and below the cylinder 11 respectively, and the fixing columns 26 are fixedly connected with the recovery cylinder 3, a heat exchange pipe 12 is arranged outside the cylinder 11, and the heat exchange pipe 12 is spirally arranged, the heat exchange pipe 12 is made of die-cast aluminum alloy, a water inlet pipe 5 and a water outlet pipe 6 are respectively fixedly installed below the recovery cylinder 3, the water inlet pipe 5 is communicated with one end of the heat exchange pipe 12, and the water outlet pipe 6 is communicated with the other end of the heat exchange pipe 12.

[0024] During use, the flue gas of the cupola body 1 is input into the recovery cylinder 3 through the flue gas pipe 2. Through the action of the filter plate 9, the flue gas is filtered. Then, under the diversion of the diversion block 10, the flue gas flows outside the cylinder 11. At the same time, water is input into the heat exchange pipe 12 through the water inlet pipe 5. Through heat transfer, the heat in the flue gas is transferred to the water inside the heat exchange pipe 12, realizing the recovery of the heat of the flue gas and increasing the practicability.

[0025] Further, a diversion pipe 13 is fixedly installed inside the purification box 7, the diversion pipe 13 is communicated with the recovery cylinder 3, a water distribution plate 19 is arranged above the diversion pipe 13 inside the purification box 7, a water spray head 20 is fixedly installed below the water distribution plate 19. By spraying water downward through the water spray head 20, the flue gas can be wetted and purified, removing the residual impurities in the flue gas and cooling the flue gas sufficiently.

[0026] Further, a partition plate 14 is fixedly installed below the inside of the purification box 7. A water cavity is arranged along one side of the partition plate 14 inside the purification box 7, and water is injected into the water cavity. An equipment cavity is arranged along the other side of the partition plate 14 inside the purification box 7. A water pump 16 is arranged inside the equipment cavity, and the water pump 16 is fixedly connected with the purification box 7 by screws. A water suction pipe 15 is fixedly installed on one side of the water pump 16, and one end of the water suction pipe 15 penetrates through the partition plate 14 and enters the inside of the water cavity. A filter head is arranged at the end of the water suction pipe 15, which can filter the water flowing into the water suction pipe 15. A water delivery pipe 17 is fixedly installed on the other side of the water pump 16, and one end of the water delivery pipe 17 is fixedly connected with the water distribution plate 19. A sealing plate 18 is arranged above the water pump 16, and both the purification box 7 and the partition plate 14 are welded to the sealing plate 18 to prevent water from falling into the equipment cavity, increasing the practicability.

[0027] Further, a dehumidifier 21 is provided above the interior of the purification box 7. Sealing baffles are symmetrically and fixedly installed on both sides of the dehumidifier 21, and the sealing baffles are fixedly connected to the purification box 7 by screws. Through the action of the dehumidifier 21, the water vapor in the flue gas can be removed.

[0028] Further, an adsorption box 22 is provided above the dehumidifier 21 along the interior of the purification box 7. Activated carbon particles are provided inside the adsorption box 22, which can adsorb and purify the flue gas, increasing the processing capacity of the flue gas. A plurality of through holes are provided on both the upper end surface and the lower end surface of the adsorption box 22 to facilitate air circulation. The front end of the adsorption box 22 extends to the front end surface of the purification box 7, facilitating the pulling out of the adsorption box 22. Rail plates 23 are symmetrically provided on both sides of the adsorption box 22, and the rail plates 23 are fixedly connected to the purification box 7 by screws. The rail plates are arranged as U-shaped plates, which is beneficial to the stability of the purification box 7.

[0029] Further, an impurity box 4 is fixedly installed below the recovery cylinder 3. A material dropping hole 25 is provided at the connection between the recovery cylinder 3 and the impurity box 4. An inclined plate 24 is provided inside the material dropping hole 25. The material dropping hole 25 is located on one side of the filter plate 9, so that the dust and impurities filtered from the flue gas can fall into the impurity box 4, facilitating the unified cleaning of the dust and impurities and increasing the practicability.

[0030] Working principle: When in use, the flue gas of the cupola body 1 is input into the recovery cylinder 3 through the flue gas pipeline 2. Through the action of the filter plate 9, the flue gas is filtered. Then, under the diversion of the diversion block 10, the flue gas flows outside the cylinder 11. At the same time, water is input into the heat exchange tube 12 through the water inlet pipe 5. Through heat transfer, the heat in the flue gas is transferred to the water inside the heat exchange tube 12, realizing the recovery of the heat of the flue gas. Then, the heated water in the heat exchange tube 12 is output through the water outlet pipe 6. Then, the flue gas flows into the purification box 7 through the diversion pipe 13. By starting the water pump 16, the water in the water cavity is extracted by the water suction pipe 15 and then transported to the water distribution tray 19 through the water delivery pipe 17 and sprayed out through the spray head 20 to wet and purify the flue gas, removing the residual impurities in the flue gas and fully cooling the flue gas. Then, through the action of the dehumidifier 21, the rising flue gas is dehumidified, and then the flue gas is adsorbed and purified by the activated carbon particles inside the adsorption box 22. Then, the flue gas is output through the output pipe 8.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A cupola furnace with a flue gas treatment structure, comprising a cupola furnace body (1), characterized in that: Above the cupola body (1), a flue gas pipe (2) is fixedly installed. One end of the flue gas pipe (2) away from the cupola body (1) is fixedly installed with a recovery cylinder (3). One side of the recovery cylinder (3) is fixedly installed with a purification box (7). Above the purification box (7), an output pipe (8) is fixedly installed. Inside the recovery cylinder (3), a filter plate (9) is fixedly installed. Along one side of the filter plate (9) inside the recovery cylinder (3), a cylinder (11) is arranged. One side of the cylinder (11) is fixedly installed with a diversion block (10), and the diversion block (10) is arranged in a frustum shape. Above and below the cylinder (11), fixing columns (26) are respectively symmetrically and fixedly installed, and the fixing columns (26) are fixedly connected with the recovery cylinder (3). Outside the cylinder (11), a heat exchange pipe (12) is arranged, and the heat exchange pipe (12) is arranged in a spiral shape. Below the recovery cylinder (3), a water inlet pipe (5) and a water outlet pipe (6) are respectively fixedly installed. The water inlet pipe (5) is communicated with one end of the heat exchange pipe (12), and the water outlet pipe (6) is communicated with the other end of the heat exchange pipe (12).

2. The cupola furnace with a flue gas treatment structure according to claim 1, wherein: Inside the purification box (7), a diversion pipe (13) is fixedly installed. The diversion pipe (13) is communicated with the recovery cylinder (3). Along the upper part of the diversion pipe (13) inside the purification box (7), a water distribution plate (19) is arranged. Below the water distribution plate (19), a water spray head (20) is fixedly installed.

3. The cupola furnace with a flue gas treatment structure according to claim 2, characterized in that: Below the inside of the purification box (7), a partition plate (14) is fixedly installed. Along one side of the partition plate (14) inside the purification box (7), a water cavity is arranged. Along the other side of the partition plate (14) inside the purification box (7), an equipment cavity is arranged. Inside the equipment cavity, a water pump (16) is arranged, and the water pump (16) is fixedly connected with the purification box (7) by screws.

4. The cupola furnace with a flue gas treatment structure according to claim 3, characterized in that: One side of the water pump (16) is fixedly installed with a water suction pipe (15), and one end of the water suction pipe (15) penetrates through the partition plate (14) and enters the inside of the water cavity. The other side of the water pump (16) is fixedly installed with a water delivery pipe (17), and one end of the water delivery pipe (17) is fixedly connected with the water distribution plate (19). Above the water pump (16), a sealing plate (18) is arranged. The purification box (7) and the partition plate (14) are both welded and connected with the sealing plate (18).

5. The cupola furnace with a flue gas treatment structure according to claim 4, characterized in that: Above the inside of the purification box (7), a dehumidifier (21) is arranged. On both sides of the dehumidifier (21), sealing baffles are respectively symmetrically and fixedly installed, and the sealing baffles are fixedly connected with the purification box (7) by screws.

6. The cupola furnace with a flue gas treatment structure according to claim 5, characterized in that: Along the upper part of the dehumidifier (21) inside the purification box (7), an adsorption box (22) is arranged. On both sides of the adsorption box (22), track plates (23) are respectively symmetrically arranged, and the track plates (23) are fixedly connected with the purification box (7) by screws.

7. The cupola furnace with a flue gas treatment structure according to claim 1, characterized in that: Below the recovery cylinder (3), an impurity box (4) is fixedly installed. At the connection of the recovery cylinder (3) and the impurity box (4), a blanking hole (25) is arranged. Inside the blanking hole (25), an inclined plate (24) is arranged.

Images