Cooling device for extracting coal tar from raw gas

Abstract

The utility model discloses a cooling device for extracting coal tar from raw gas, which comprises a shell, a cover plate, a handle, a gas inlet pipe, a gas outlet pipe, a dust removal structure and a knocking structure. After the raw gas is conveyed, dust and impurities generally fall into the collecting tank under the influence of gravity, but a small amount of dust and impurities are adsorbed and adhered to the lower end face of the filtering layer, and an electric push rod is immediately started to do telescopic motion after conveying is finished. The electric push rod drives the straight rod to move up and down, the straight rod drives the first connecting rod and the second connecting rod to move, the first connecting rod and the second connecting rod can rotate to knock the filter layer through limiting of the limiting rod, then dust and impurities fall into the collecting tank, the dust removal effect is achieved, and the filter layer can be prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the field of raw coal gas, in particular to a cooling device for extracting coal tar from raw coal gas. Background Art

[0002] Raw coal gas refers to dusty coal gas, which cannot be directly supplied to users and must undergo dust removal treatment. This is because the furnace dust in the raw coal gas may not only block the pipeline during transportation, but also the alkaline substances in the furnace dust may fuse (slag) with acidic refractory materials under high temperature conditions during combustion, thereby reducing the performance and service life of equipment such as coke oven combustion chambers and hot blast furnace regenerators.

[0003] The Chinese patent with patent number CN202220219884.X discloses "A separation and recovery device for coal tar in raw gas". The raw gas enters the vertical pipe from the gas connecting pipe and continues to rise. In the process of entering the shrinking cone and the shell from the vertical pipe, the raw gas quickly diffuses and strongly mixes with the coal tar droplets sprayed from the nozzle and condenses on contact. The condensed coal tar continues to fall and is finally discharged from the drain pipe, while the remaining raw gas rises through the central pipe and enters the adsorption layer. Since a cooling device is set in the adsorption layer, the raw gas The cooling coil is filled with coal tar at a relatively low temperature. The coal tar absorbs the heat in the raw gas in the cooling coil, further reducing the temperature of the raw gas and promoting the condensation of the coal tar in the raw gas. The liquid droplets are absorbed by the adsorption layer and fall from the central tube. The raw gas with the coal tar removed is discharged from the exhaust pipe. No water resources are used for condensation, which can avoid the waste and pollution of water resources, greatly reduce the recovery cost of coal tar, save energy and protect the environment. At the same time, the coal tar in the raw gas is recovered through condensation, and its recovery is relatively thorough.

[0004] Although the above-mentioned separation and recovery device for coal tar in raw gas has certain advantages in the ability to condense and recover coal tar, the raw gas enters through the U-shaped bend pipe and passes through the filter for dust removal. After long-term use, the filter is easily stuck with dust and clogged, causing the raw gas to flow out from the slag discharge port. Utility Model Content

[0005] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a cooling device for extracting coal tar from raw coal gas.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a coal tar cooling device for extracting coal tar from raw coal gas, comprising an outer shell, a cover plate, a handle, an air inlet pipe, an air outlet pipe, a dust removal structure and a knocking structure, the front end face of the outer shell is fitted with the cover plate, and the left end face of the cover plate is rotatably connected to the outer shell by a hinge, a handle is fixed to the right side of the middle part of the front end face of the cover plate, an air inlet pipe is fixed to the middle part of the lower side of the outer shell, and the air outlet pipe is fixed to the middle part of the upper side of the outer shell, a dust removal structure is fixed to the middle part of the inner wall of the outer shell, and a knocking structure is arranged on the upper side of the dust removal structure, the dust removal structure comprises a support plate, a limiting plate, a collecting trough and a filtering structure, the rear end faces of the two support plates are fixedly connected to the limiting plate, the front end face of the limiting plate is fitted with the collecting trough, the upper side of the collecting trough is provided with a filtering structure, and the far ends of the two support plates are respectively fixedly connected to the left and right end faces of the inner wall of the outer shell.

[0007] Optionally, the knocking structure includes an electric push rod, a straight rod, a first connecting rod and a second connecting rod, the lower end of the electric push rod is fixedly connected to the straight rod, the left and right sides of the straight rod are respectively penetrated by the first connecting rod and the second connecting rod, and the inner walls of the first connecting rod and the second connecting rod are rotatably connected to the straight rod, and the electric push rod is installed on the left rear side of the upper end surface of the outer shell.

[0008] Optionally, the filtering structure includes a rectangular plate, a sliding groove and a filtering layer, the front end surfaces of the two rectangular plates are provided with a sliding groove, and the inner wall of the sliding groove is in contact with the filtering layer, and the two rectangular plates are fixedly connected to the left and right end surfaces of the inner wall of the outer shell respectively.

[0009] Optionally, a buckle is installed on the front side of the middle part of the right end surface of the shell, which is conducive to limiting the cover plate through the buckle.

[0010] Optionally, a guide plate is fixed to the lower inner wall of the shell to facilitate guiding the raw gas intake by using the guide plate.

[0011] Optionally, the lower sides of the first connecting rod and the second connecting rod are in contact with the limiting rod, and the left and right ends of the limiting rod are fixedly connected to the inner wall of the shell, which is conducive to limiting the rotation of the first connecting rod and the second connecting rod by the limiting rod.

[0012] Optionally, the front end surfaces of the collecting tank and the filter layer are in contact with the cover plate to prevent the collecting tank and the filter layer from shaking.

[0013] Beneficial effects of the utility model:

[0014] The utility model discloses a coal tar cooling device for extracting coal tar from raw gas. A dust removal structure is set up, and the raw gas enters the interior of an outer shell from an air inlet pipe, and is guided by a guide plate so that the raw gas is filtered at a filter layer and then discharged upward through an air outlet pipe. After the raw gas is transported, dust and impurities are generally affected by gravity and fall into a collecting tank, but a small amount of dust and impurities are adsorbed and remain on the lower end surface of the filter layer. An electric push rod is immediately started to perform telescopic movement after the transport is completed, and the electric push rod drives the straight rod to move up and down, and the straight rod drives the first connecting rod and the second connecting rod to move. The first connecting rod and the second connecting rod are limited by the limit rod, so that the first connecting rod and the second connecting rod can be rotated to knock the filter layer, thereby causing the dust and impurities to fall into the collecting tank, thereby achieving a dust removal effect and avoiding clogging of the filter layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 It is a right view of the structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the knocking structure of the utility model;

[0019] Figure 5 It is the right view of the filtering structure of the utility model.

[0020] Among them: shell -1, cover plate -2, handle -3, air inlet pipe -4, air outlet pipe -5, dust removal structure -6, knocking structure -7, buckle -8, guide plate -9, support plate -61, limit plate -62, collection tank -63, filter structure -64, electric push rod -71, straight rod -72, first connecting rod -73, second connecting rod -74, limit rod -75, rectangular plate -641, sliding groove -642, filter layer -643. DETAILED DESCRIPTION

[0021] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0022] See also Figure 1 , Figure 2 and Figure 3The utility model provides a coal tar cooling device for extracting raw coal gas, comprising a shell 1, a cover plate 2, a handle 3, an air inlet pipe 4, an air outlet pipe 5, a dust removal structure 6 and a knocking structure 7. The front end surface of the shell 1 is fitted with the cover plate 2, and the left end surface of the cover plate 2 is rotatably connected to the shell 1 through a hinge. The handle 3 is fixed to the right side of the middle of the front end surface of the cover plate 2, the air inlet pipe 4 is fixed to the middle of the lower side of the shell 1, and the air outlet pipe 5 is fixed to the middle of the upper side of the shell 1. The dust removal structure 6 is fixed to the middle of the inner wall of the shell 1, and the knocking structure 7 is arranged on the upper side of the dust removal structure 6. It includes a support plate 61, a limiting plate 62, a collecting groove 63 and a filtering structure 64. The rear end faces of the two support plates 61 are fixedly connected to the limiting plate 62, the front end face of the limiting plate 62 is fitted with the collecting groove 63, and the upper side of the collecting groove 63 is provided with a filtering structure 64. The far ends of the two support plates 61 are respectively fixedly connected to the left and right end faces of the inner wall of the outer shell 1. A buckle 8 is installed on the front side of the middle part of the right end face of the outer shell 1, which is conducive to limiting the cover plate 2 through the buckle 8. A guide plate 9 is fixed to the lower inner wall of the outer shell 1, which is convenient for guiding the raw gas intake by using the guide plate 9.

[0023] See also Figure 4 The utility model provides a coal tar cooling device for extracting raw coal gas. The knocking structure 7 includes an electric push rod 71, a straight rod 72, a first connecting rod 73 and a second connecting rod 74. The lower end of the electric push rod 71 is fixedly connected to the straight rod 72. The left and right sides of the straight rod 72 are respectively penetrated by the first connecting rod 73 and the second connecting rod 74, and the inner walls of the first connecting rod 73 and the second connecting rod 74 are rotatably connected to the straight rod 72. The electric push rod 71 is installed on the left rear side of the upper end surface of the shell 1. The lower sides of the first connecting rod 73 and the second connecting rod 74 are fitted with the limiting rod 75, and the left and right ends of the limiting rod 75 are fixedly connected to the inner wall of the shell 1, which is conducive to limiting the rotation of the first connecting rod 73 and the second connecting rod 74 by the limiting rod 75.

[0024] See also Figure 5 The utility model provides a coal tar cooling device for extracting raw coal gas. The filtering structure 64 includes a rectangular plate 641, a sliding groove 642 and a filtering layer 643. The front end surfaces of the two rectangular plates 641 are provided with sliding grooves 642, and the inner walls of the sliding grooves 642 are fitted with the filtering layer 643. The two rectangular plates 641 are fixedly connected to the left and right end surfaces of the inner wall of the outer shell 1 respectively. The front end surfaces of the collecting groove 63 and the filtering layer 643 are fitted with the cover plate 2 to prevent the collecting groove 63 and the filtering layer 643 from shaking.

[0025] Here’s how it works:

[0026] First, the new device is installed at the required location and connected to the circuit;

[0027] Second, the raw gas is transported to the inside of the housing 1 through the air inlet pipe 4, and the raw gas is guided by the guide plate 9 to flow toward the filter layer 643 to prevent dust and impurities from falling on the lower side of the collecting tank 63. The raw gas passing through the filter layer 643 filters the dust and impurities on the lower side of the filter layer 643, and the filtered raw gas is cooled upward through the exhaust pipe 5 to the cooling device;

[0028] Third, after the raw gas is delivered, the dust and impurities will generally fall into the collecting tank 63 due to the influence of gravity, but a small amount of dust and impurities will still be adsorbed and stuck on the lower end surface of the filter layer 643. Immediately after the delivery, the electric push rod 71 is started to perform telescopic movement, and the electric push rod 71 drives the straight rod 72 to move up and down, and the straight rod 72 drives the first connecting rod 73 and the second connecting rod 74 to move. The first connecting rod 73 and the second connecting rod 74 are allowed to rotate repeatedly and knock the filter layer 643 by using the limiting rod 75, so that the dust and impurities stuck on the filter layer 643 can fall into the collecting tank 63, thereby achieving the dust removal effect and avoiding the clogging of the filter layer.

[0029] Fourth, by opening the buckle 8 and utilizing the hinge connection between the cover plate 2 and the housing 1, the cover plate 2 can be pulled open by rotating the handle 3 to the left, and then the collection tank 63 can be taken out from the inside of the housing 1, so as to facilitate the centralized treatment of dust and impurities.

[0030] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0031] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0032] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A coal tar cooling device for extracting coal from raw coal gas, comprising a shell (1), a cover plate (2), a handle (3), an air inlet pipe (4) and an air outlet pipe (5), wherein the front end surface of the shell (1) is in contact with the cover plate (2), and the left end surface of the cover plate (2) is rotatably connected to the shell (1) through a hinge, the handle (3) is fixed to the right side of the middle of the front end surface of the cover plate (2), the air inlet pipe (4) is fixed to the middle of the lower side of the shell (1), and the air outlet pipe (5) is fixed to the middle of the upper side of the shell (1); Features: It also comprises a dust removal structure (6) and a knocking structure (7); the dust removal structure (6) is fixed to the middle of the inner wall of the outer shell (1); the knocking structure (7) is arranged on the upper side of the dust removal structure (6); the dust removal structure (6) comprises a support plate (61), a limit plate (62), a collection groove (63) and a filtering structure (64); the rear end surfaces of the two support plates (61) are fixedly connected to the limit plate (62); the front end surfaces of the limit plates (62) are in contact with the collection groove (63); the upper side of the collection groove (63) is provided with a filtering structure (64); and the far ends of the two support plates (61) are respectively fixedly connected to the left and right end surfaces of the inner wall of the outer shell (1).

2. The coal tar cooling device for extracting coal tar from raw gas according to claim 1, characterized in that: The knocking structure (7) comprises an electric push rod (71), a straight rod (72), a first connecting rod (73) and a second connecting rod (74); the lower end of the electric push rod (71) is fixedly connected to the straight rod (72); the left and right sides of the straight rod (72) are respectively penetrated by the first connecting rod (73) and the second connecting rod (74); the inner walls of the first connecting rod (73) and the second connecting rod (74) are rotatably connected to the straight rod (72); and the electric push rod (71) is installed on the left rear side of the upper end surface of the housing (1).

3. The coal tar cooling device for extracting coal tar from raw gas according to claim 1, characterized in that: The filtering structure (64) comprises a rectangular plate (641), a sliding groove (642) and a filtering layer (643); the front end surfaces of the two rectangular plates (641) are provided with sliding grooves (642), and the inner walls of the sliding grooves (642) are in contact with the filtering layer (643); the two rectangular plates (641) are respectively fixedly connected to the left and right end surfaces of the inner wall of the outer shell (1).

4. The coal tar cooling device for extracting coal tar from raw gas according to claim 1, characterized in that: A buckle (8) is installed on the front side of the middle part of the right end surface of the housing (1).

5. The coal tar cooling device for extracting coal tar from raw gas according to claim 1, characterized in that: A guide plate (9) is fixed to the lower inner wall of the housing (1).

6. The coal tar cooling device for extracting coal tar from raw gas according to claim 2, characterized in that: The lower sides of the first connecting rod (73) and the second connecting rod (74) are in contact with the limiting rod (75), and the left and right ends of the limiting rod (75) are fixedly connected to the inner wall of the housing (1).

7. The coal tar cooling device for extracting coal tar from raw gas according to claim 3, characterized in that: The front end surfaces of the collecting tank (63) and the filter layer (643) are in contact with the cover plate (2).

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