Smoke removal device for heat preservation furnace

Abstract

The utility model discloses a heat preservation furnace smoke removal device which comprises a heat preservation furnace body, a baffle, an extrusion assembly, a reset assembly, a spiral air supply pipe, a one-way circulation mechanism, an air conveying pipe, a mounting shell, an air outlet pipe, an air inlet pipe and an elastic diaphragm. An air outlet pipe and an air inlet pipe are arranged on the upper portion and the lower portion of the outer portion of the installation shell respectively, baffles are arranged on the two sides in the installation shell, installation frames are arranged on the two sides between the baffles, elastic diaphragms are arranged in the installation frames, extrusion assemblies are arranged between the elastic diaphragms and the installation shell, and reset assemblies are arranged between the elastic diaphragms and the baffles. A spiral air feeding pipe is arranged on the rear side outside the heat preservation furnace body. Compared with the prior art, the gas washing bottle has the advantages that the unidirectionality and continuous stability of flue gas conveying are guaranteed, the flue gas is cooled as much as possible before gas washing, and evaporation of liquid in the gas washing bottle is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of heat preservation furnaces, in particular to a smoke removal device for heat preservation furnaces. Background Art

[0002] Holding furnaces are mainly used in industrial production, especially in the field of metal casting. Its main function is to keep the temperature of the molten metal within a constant range to ensure the smooth progress of the casting process. Holding furnaces will produce smoke and harmful gases during operation. In the heating process, fuels (such as coal, natural gas, oil, etc.) usually need to be burned. Incomplete combustion will produce harmful gases such as smoke and carbon monoxide. Moreover, when the metal is heated to a high temperature, it may react chemically with the atmosphere in the furnace to produce smoke and oxides. Some metals or alloys may volatilize at high temperatures to form smoke. These fumes are directly discharged into the air or inhaled by the human body, which is easy to pollute the environment and harm human health.

[0003] Although the prior art has solved certain problems, it still has the following disadvantages:

[0004] The existing technology mainly eliminates smoke from the insulation furnace by rotating the fan blades, and the smoke particles are discharged in a specified direction through the air flow. However, the fan blades are unstable in the process of transporting the smoke. When the fan blades are affected by the airflow, the emission direction of the smoke will change or even flow back. Utility Model Content

[0005] The utility model aims to provide a smoke removal device for a heat preservation furnace.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A fume removal device for a heat preservation furnace, comprising:

[0008] A heat preservation furnace body, wherein the upper end of the exterior of the heat preservation furnace body is fixedly connected to a gas delivery pipe, a mounting shell is arranged above the exterior of the heat preservation furnace body, an air outlet pipe and an air inlet pipe are respectively fixedly connected to the exterior of the mounting shell, and the lower end of the exterior of the air inlet pipe is fixedly connected to the upper end of the exterior of the gas delivery pipe;

[0009] Baffles, the baffles are respectively fixedly connected to both sides of the lower end of the installation shell, the lower end of the installation shell is fixedly connected to both sides between the baffles with a mounting frame, the mounting frame is provided with an elastic diaphragm, and the baffles are provided with movable slots on the sides away from each other;

[0010] An extrusion assembly, the extrusion assembly is arranged between the elastic diaphragm and the mounting shell, the extrusion assembly includes a cam, an extrusion roller and an extrusion contact piece, the cam is arranged between the elastic diaphragms, the front and rear of the cam are respectively rotatably connected with the front and rear sides inside the mounting shell, the cam is provided with mounting grooves on both sides, the extrusion roller is arranged inside the mounting groove, the front and rear of the extrusion roller are respectively rotatably connected with the front and rear sides inside the mounting groove, the extrusion contact piece is respectively fixedly connected to the middle part of the side close to each other of the elastic diaphragm, and the extrusion contact piece is adapted to the extrusion roller;

[0011] A reset assembly, the reset assembly is arranged between the elastic diaphragm and the baffle, the reset assembly comprises a connecting piece, a guide rod and a reset spring, the connecting piece is respectively fixedly connected to the middle part of the side of the elastic diaphragm away from each other, the guide rod is respectively fixedly connected to the side of the connecting piece away from each other, and the guide rod is adapted to the inside of the movable slot, the reset spring is located between the connecting piece and the baffle, and the reset spring is sleeved on the outside of the guide rod;

[0012] A spiral air supply pipe, the spiral air supply pipe is arranged at the rear side of the outer part of the heat preservation furnace body, the spiral air supply pipe is connected to the air outlet pipe by a connecting pipe, a gas washing bottle is arranged at the rear side of the outer part of the heat preservation furnace body, and the other end of the spiral air supply pipe connected to the air outlet pipe extends to the bottom end of the inner part of the gas washing bottle;

[0013] A one-way flow mechanism is arranged between the air inlet pipe and the air outlet pipe.

[0014] Furthermore, four corners of the lower end of the installation shell are fixedly connected with connecting rods, and the other end of the connecting rod connected to the installation shell is fixedly connected to the outer upper end of the furnace cover of the insulation furnace body.

[0015] Furthermore, a driving motor used in conjunction with a cam is fixedly connected to the front side of the exterior of the mounting shell, and a blocking piece is fixedly connected to one end of the guide rod away from the connecting piece, and the blocking piece is located on the side where the baffles are away from each other.

[0016] Furthermore, the one-way flow mechanism comprises:

[0017] A sealing tube, wherein the sealing tube is embedded in the air inlet pipe and the air outlet pipe;

[0018] A first air blocking ring block, wherein the first air blocking ring block is embedded in the lower end of the sealing tube;

[0019] A second air blocking ring block, wherein the second air blocking ring block is embedded in the upper side of the sealing tube;

[0020] A valve ball is arranged inside the sealing tube, and the valve ball is matched with the first air blocking ring block and the second air blocking ring block.

[0021] Furthermore, a plurality of evenly distributed vent holes are provided on the upper outer side of the second air blocking ring block, and the valve ball is arranged between the first air blocking ring block and the second air blocking ring block.

[0022] Furthermore, an exhaust pipe is fixedly connected to the rear side of the upper end of the exterior of the gas washing bottle, and the lower end of the exhaust pipe extends to the interior of the gas washing bottle.

[0023] The utility model provides a heat preservation furnace smoke removal device, which has the following beneficial effects:

[0024] The rotation of the cam drives the two diaphragms to move away from each other at the same time, and the return spring squeezes the elastic diaphragms with connecting plates in the direction of approaching each other to change the size of the space between the two diaphragms to form an air pressure difference with the outside world, and then the one-way flow mechanism is used to ensure the unidirectionality of the smoke delivery, thereby ensuring the one-way and continuous delivery of the smoke, which is more stable. Moreover, before the smoke is washed, the spiral air pipe can be fully used to discharge heat to the outside, thereby reducing the evaporation of the liquid in the washing bottle. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0026] Figure 1 The utility model is a three-dimensional diagram of a smoke removal device for a heat preservation furnace.

[0027] Figure 2 It is a three-dimensional structure of part of a smoke removal device for a heat preservation furnace of the utility model. Figure 1 .

[0028] Figure 3 It is a three-dimensional structure of part of a smoke removal device for a heat preservation furnace of the utility model. Figure 2 .

[0029] Figure 4 It is a three-dimensional structure of part of a smoke removal device for a heat preservation furnace of the utility model. Figure 3 .

[0030] Figure 5 It is a three-dimensional structure of part of a smoke removal device for a heat preservation furnace of the utility model. Figure 4 .

[0031] Indications in the figure: 1. Insulation furnace body; 2. Baffle; 3. Extrusion assembly; 301. Cam; 302. Extrusion roller; 303. Extrusion contact piece; 304. Mounting groove; 4. Reset assembly; 401. Connecting piece; 402. Guide rod; 403. Reset spring; 5. Spiral air supply pipe; 6. One-way flow mechanism; 601. Sealing pipe; 602. First air blocking ring block; 603. Second air blocking ring block; 604. Valve ball; 7. Air supply pipe; 8. Mounting shell; 9. Air outlet pipe; 10. Air inlet pipe; 11. Mounting frame; 12. Elastic diaphragm; 13. Movable slot hole; 14. Connecting pipe; 15. Washing bottle; 16. Connecting rod; 17. Driving motor; 18. Baffle; 19. Air vent; 20. Exhaust pipe. DETAILED DESCRIPTION

[0032] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0033] 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. 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. Example

[0034] like Figures 1 to 5 As shown, this embodiment proposes a heat preservation furnace smoke removal device, including a heat preservation furnace body 1, a baffle 2, an extrusion assembly 3, a reset assembly 4, a spiral air supply pipe 5, a one-way flow mechanism 6, an air supply pipe 7, a mounting shell 8, an air outlet pipe 9, an air inlet pipe 10, and a mounting frame 11 arranged inside the mounting shell 8 and an elastic diaphragm 12 inside the mounting frame 11.

[0035] The insulation furnace body 1 is composed of a platform with an ash leakage hole, four foot supports at the lower end of the platform and a furnace cover at the upper end of the platform. A gas pipe 7 is fixedly connected to the upper end of the outer cover of the insulation furnace body 1, and a box-shaped installation shell 8 is arranged on the upper side of the gas pipe 7. An air inlet pipe 10 is fixedly connected to the lower end of the outer side of the installation shell 8, and an air outlet pipe 9 is fixedly connected to the upper end. A baffle 2 is fixedly connected to the inner side of the installation shell 8 near both sides. There is a certain gap between the baffle 2 and the side walls on both sides of the inner side of the installation shell 8, and movable slots 13 are provided at the middle position where the baffles 2 are close to each other. On the side where the baffles 2 are close to each other, mounting frames 11 are fixedly connected on both sides of the lower end of the interior of the mounting shell 8, and the upper and lower parts and the front and rear parts of the exterior of the mounting frame 11 are sealed and connected to the upper and lower parts and the front and rear parts of the interior of the mounting shell 8. There are air holes on both sides of the exterior of the mounting shell 8 that are connected to the interior. An elastic diaphragm 12 is arranged inside each mounting frame 11, and the upper and lower ends and the front and rear ends of the elastic diaphragm 12 are fixedly connected to the upper and lower sides and the front and rear sides of the interior of the mounting frame 11, respectively. The mounting shell and the insulation furnace body 1 are connected by connecting rods fixedly connected to the four corners of the lower end of the exterior of the mounting shell 8.

[0036] The sides of the elastic diaphragms 12 that are away from each other are fixedly connected to a connecting piece 401, and the sides of the connecting pieces 401 that are away from each other are fixedly connected to a guide rod 402. The other end of the guide rod 402 connected to the connecting piece 401 passes through the interior of the movable slot 13 and extends to the side of the baffle 2 that is away from each other, and a baffle 18 is fixedly connected to the end of the guide rod 402 that is away from each other. A return spring 403 is arranged between the baffle 2 and the connecting piece 401. The return spring 403 is sleeved on the outside of the guide rod 402 to move the elastic diaphragms 12 in a direction of approaching each other, and change the space between the elastic diaphragms 12 to shrink. The interior of the air inlet pipe 10 and the air outlet pipe 9 and the cavity between the elastic diaphragms 12 are through-connected together, and the air pressure in the cavity between the elastic diaphragms 12 is changed by the elastic diaphragms 12 approaching each other or moving away from each other, and the smoke inside the insulation furnace body 1 is transported upward through the gas pipe 7.

[0037] In order to extrude the elastic diaphragm 12, a cam 301 is arranged in the middle position inside the mounting shell 8, and mounting grooves 304 are opened on both sides of the cam 301. An extrusion roller 302 is arranged inside the mounting groove 304, and the front and rear of the extrusion roller 302 are respectively connected with the front and rear rotation inside the mounting groove 304. The cam 301 is rotated by a driving motor 17 fixedly connected to the front side of the outside of the mounting shell 8. The cam 301 pushes the elastic diaphragms 12 close to each other through the extrusion roller 302. The extrusion contact piece 303 fixedly connected in the middle squeezes the two elastic diaphragms 12 away from each other. When the extrusion rollers 302 on both sides of the cam 301 rotate up and down, the return spring 403 squeezes the elastic diaphragms 12 in the direction of approaching each other.

[0038] In order to allow the smoke to be transported only upward, a sealing tube 601 is provided inside the air inlet pipe 10 and the air outlet pipe 9. The outer wall of the sealing tube 601 is embedded in the inner wall of the air inlet pipe 10 and the air outlet pipe 9. A first air blocking ring block 602 is embedded and sealed at the lower end of the sealing tube 601. A second air blocking ring block 603 is embedded and sealed at the upper end of the sealing tube 601. A valve ball 604 is provided inside the sealing tube 601 and between the two air blocking ring blocks. The valve ball 604 moves up and down to close the hole between the two air blocking ring blocks. Blocked, a number of evenly distributed ventilation holes 19 are opened in a circle on the outer upper end of the second air blocking ring block 603. When the valve ball 604 moves upward to block the hole in the middle of the second air blocking ring block 603, the interior of the sealing tube 601 is ventilated, and the gas enters the interior of the sealing tube 601 from the hole in the middle of the first air blocking ring block 602, and then flows out through the ventilation holes 19 opened on the second air blocking ring block 603. When the valve ball 604 moves downward to block the hole in the middle of the first air blocking ring block 602, the interior of the sealing tube 601 is closed and no air flows in the tube.

[0039] When the two elastic diaphragms 12 are squeezed away from each other, the space between the two elastic diaphragms 12 inside the mounting shell 8 expands, the air pressure decreases, air is sucked inwardly, the upper valve ball 604 moves downward, the interior of the outlet pipe 9 is closed, and the lower valve ball 604 moves upward. The smoke and the gas transmission pipe 7 enter the space between the two elastic diaphragms 12 through the interior of the lower vent 19. When the reset component 4 squeezes the two elastic diaphragms 12 closer to each other, the elastic diaphragms 12 squeeze the smoke between them, the internal air pressure increases, the lower valve ball 604 moves downward, blocks the interior of the inlet pipe 10, and the smoke is squeezed upward from the interior of the upper vent 19. When the two elastic diaphragms 12 are deformed, the air pressure of the space between the two sides away from each other and the mounting shell 8 is discharged outward through the gap between the movable slot 13 and the guide rod 402 and the small holes on both sides of the mounting shell 8, maintaining the air pressure between the side of the elastic diaphragm 12 away from each other and the two sides inside the mounting shell 8 stable.

[0040] After the gas is transported upward from the inside of the air outlet pipe 9, a connecting pipe 14 is fixedly connected to the upper end of the air outlet pipe 9, and a spiral air supply pipe 5 is fixedly connected to the other end of the connecting pipe 14. The spiral air supply pipe 5 is arranged in a spiral manner to increase the heat dissipation of the flue gas while transporting the flue gas as much as possible, so that the flue gas can be cooled before washing. Finally, the spiral air supply pipe 5 passes the flue gas into the inside of the washing bottle 15 on the outer rear side of the insulation furnace body 1. The water inside the washing bottle 15 absorbs the smoke discharged from the spiral air supply pipe 5 to reduce the dust in the exhaust gas. The washed gas is discharged from the exhaust pipe 20 extending to the inside of the washing bottle 15. The lower end of the exhaust pipe 20 is above the water surface in the washing bottle 15, and the spiral air supply pipe 5 is below the water surface inside the washing bottle 15.

[0041] The electrical components appearing in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that controls a computer, etc. The specific implementation method of the present disclosure omits the detailed description of known functions and known components. To ensure the compatibility of the equipment, the operating methods used are consistent with the parameters of marketed equipment.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fume removal device for a heat preservation furnace, characterized in that: include: A heat preservation furnace body (1), wherein the upper end of the exterior of the heat preservation furnace body (1) is fixedly connected to a gas supply pipe (7), a mounting shell (8) is arranged above the exterior of the heat preservation furnace body (1), an air outlet pipe (9) and an air inlet pipe (10) are respectively fixedly connected to the upper and lower exterior of the mounting shell (8), and the lower end of the exterior of the air inlet pipe (10) is fixedly connected to the upper end of the exterior of the gas supply pipe (7); baffles (2), the baffles (2) being fixedly connected to both sides of the lower end of the mounting shell (8), the lower end of the mounting shell (8) being fixedly connected to mounting frames (11) on both sides between the baffles (2), the mounting frames (11) being provided with elastic diaphragms (12), and the baffles (2) being provided with movable slots (13) on the sides away from each other; An extrusion assembly (3), the extrusion assembly (3) being arranged between the elastic diaphragm (12) and the mounting shell (8), the extrusion assembly (3) comprising a cam (301), an extrusion roller (302) and an extrusion contact piece (303), the cam (301) being arranged between the elastic diaphragm (12), the front and rear of the cam (301) being rotatably connected to the front and rear sides of the mounting shell (8) respectively, both sides of the cam (301) being provided with mounting grooves (304), the extrusion roller (302) being arranged inside the mounting groove (304), the front and rear of the extrusion roller (302) being rotatably connected to the front and rear sides of the mounting groove (304) respectively, the extrusion contact piece (303) being fixedly connected to the middle part of the side of the elastic diaphragm (12) close to each other, and the extrusion contact piece (303) being adapted to the extrusion roller (302); A reset assembly (4), the reset assembly (4) being arranged between the elastic diaphragm (12) and the baffle (2), the reset assembly (4) comprising a connecting piece (401), a guide rod (402) and a reset spring (403), the connecting piece (401) being fixedly connected to the middle part of the side of the elastic diaphragm (12) away from each other, the guide rod (402) being fixedly connected to the side of the connecting piece (401) away from each other, and the guide rod (402) being adapted to the inside of the movable slot (13), the reset spring (403) being located between the connecting piece (401) and the baffle (2), and the reset spring (403) being sleeved on the outside of the guide rod (402); A spiral air supply pipe (5), the spiral air supply pipe (5) being arranged at the rear side of the exterior of the heat preservation furnace body (1), the spiral air supply pipe (5) being connected to the air outlet pipe (9) via a connecting pipe (14), a gas washing bottle (15) being arranged at the rear side of the exterior of the heat preservation furnace body (1), the other end of the spiral air supply pipe (5) being connected to the air outlet pipe (9) extending to the bottom end of the interior of the gas washing bottle (15); A one-way flow mechanism (6), wherein the one-way flow mechanism (6) is arranged between the air inlet pipe (10) and the air outlet pipe (9).

2. A heat preservation furnace smoke removal device according to claim 1, characterized in that: The four corners of the lower end of the outside of the installation shell (8) are fixedly connected to connecting rods (16), and the other ends of the connecting rods (16) connected to the installation shell (8) are fixedly connected to the upper end of the outside of the furnace cover of the insulation furnace body (1).

3. A heat preservation furnace smoke removal device according to claim 1, characterized in that: A driving motor (17) used in conjunction with the cam (301) is fixedly connected to the front side of the exterior of the mounting housing (8), and a blocking piece (18) is fixedly connected to one end of the guide rod (402) away from the connecting piece (401), wherein the blocking piece (18) is located on a side of the baffle plates (2) away from each other.

4. A heat preservation furnace smoke removal device according to claim 1, characterized in that: The one-way circulation mechanism (6) comprises: A sealing tube (601), wherein the sealing tube (601) is embedded in the interior of the air inlet pipe (10) and the air outlet pipe (9); A first air blocking ring block (602), the first air blocking ring block (602) being embedded in the lower end of the sealing tube (601); A second air blocking ring block (603), the second air blocking ring block (603) being embedded in the upper side of the interior of the sealing tube (601); A valve ball (604), wherein the valve ball (604) is arranged inside the sealing tube (601), and the valve ball (604) is compatible with the first air blocking ring block (602) and the second air blocking ring block (603).

5. A heat preservation furnace smoke removal device according to claim 4, characterized in that: A plurality of evenly distributed vent holes (19) are provided on the upper outer side of the second air blocking ring block (603), and the valve ball (604) is arranged between the first air blocking ring block (602) and the second air blocking ring block (603).

6. A heat preservation furnace smoke removal device according to claim 1, characterized in that: An exhaust pipe (20) is fixedly connected to the rear side of the upper end of the exterior of the gas washing bottle (15), and the lower end of the exhaust pipe (20) extends into the interior of the gas washing bottle (15).

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