Tubular furnace for coal tar processing

Abstract

The utility model relates to the technical field of coal tar processing, in particular to a tube furnace for coal tar processing, which comprises a tube furnace, a dust removal mechanism is arranged on the outer side of the tube furnace, the dust removal mechanism comprises a filter component, and the filter component comprises a filter bin fixedly mounted on the outer side surface of the tube furnace. A filter cylinder is fixedly embedded in the surface of one side of the partition plate, a cleaning assembly is movably arranged on the outer side of the filter cylinder, and an air inlet assembly is fixedly arranged on the surface of the lower end of the filter bin. According to the utility model, flue gas carries flue gas particles which are not fully combusted to enter the filter bin, so that the flue gas is discharged, the flue gas particles which are not fully combusted are uniformly collected, and external air is introduced through the fan, so that the air carries the flue gas particles which are not fully combusted to enter the combustion chamber of the tubular furnace for re-combustion; and meanwhile, the situation that more flame-retardant gas in the smoke hinders combustion of fuel in the combustion chamber is avoided, and the utilization efficiency of the fuel is improved.

Description

Technical Field

[0001] This utility model relates to the field of coal tar processing technology, specifically a tubular furnace for coal tar processing. Background Technology

[0002] Deep processing of coal tar refers to the process of preparing phenolic oil, industrial naphthalene or refined naphthalene, wash oil, anthracene, and pitch chemical products from coal tar through physical separation and chemical reactions. Among these processes, heating the coal tar raw material to the target temperature using a tubular furnace is an important step in the deep processing of coal tar.

[0003] The announcement number is CN220062670U, which discloses "a tubular furnace for deep processing of coal tar, including a tubular furnace, a heat absorption tube installed inside the flue pipe of the tubular furnace, a water storage tank installed at one end of the outer side of the tubular furnace, a circulating pump installed at the top of the water storage tank, a water suction pipe connected between the circulating pump and the water storage tank, and a water inlet pipe connected between the circulating pump and the heat absorption tube".

[0004] However, there are still some drawbacks in its use. The flue gas is re-sent to the combustion chamber of the tubular furnace by the induced draft fan for re-combustion, so that the unburned flue gas particles are burned again. However, the flue gas has a low oxygen content and a high content of flame-retardant gases. After carrying the unburned flue gas particles into the combustion chamber, the large amount of flame-retardant gases will hinder the combustion of fuel in the combustion chamber, resulting in an increase in unburned flue gas particles and a decrease in the heat utilization efficiency of the fuel. Utility Model Content

[0005] The purpose of this invention is to provide a tubular furnace for coal tar processing to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A tubular furnace for coal tar processing includes a tubular furnace, with a heat-conducting coil fixedly installed inside the tubular furnace, and a dust removal mechanism provided on the outside of the tubular furnace, the dust removal mechanism comprising:

[0008] The filter assembly includes a filter chamber fixedly installed on the outer surface of the tubular furnace, a partition fixedly installed inside the filter chamber, a filter cartridge fixedly embedded on one side surface of the partition, and a dust collection hood fixedly installed on the lower surface inside the filter chamber.

[0009] The cleaning component is movably located on the outside of the filter cartridge;

[0010] The air intake assembly is fixedly installed on the lower surface of the filter chamber.

[0011] Furthermore, the upper end of the tubular furnace is fixedly connected to a valve, one end of which is fixedly connected to a connecting pipe, and one end of which is fixedly connected to the filter chamber.

[0012] Furthermore, the cleaning component includes:

[0013] The support frame is fixedly installed on the inner surface of the dust collection hood;

[0014] A rotating rod is symmetrically rotatably connected to the inner surface of the support frame;

[0015] The motor is fixedly installed on the outer surface of the support frame;

[0016] A rotating frame is fixedly installed at the output end of the motor;

[0017] The brush plate is fixedly installed on the outer surface of the rotating frame and slides in contact with the filter cartridge.

[0018] Preferably, a gear ring is fixedly installed on the lower surface of the rotating frame, a gear that meshes and drives with the gear ring is fixedly installed on the upper end of the rotating rod, and a stirring rod is fixedly installed on the lower end of the rotating rod.

[0019] Furthermore, the intake assembly includes:

[0020] The heating element is fixedly installed on the lower surface of the filter chamber.

[0021] The second heat-conducting coil is fixedly installed inside the heating tube, and one end is fixedly connected to the first heat-conducting coil.

[0022] The air intake pipe is fixedly embedded and installed at the upper end of the outer surface of the heating tube;

[0023] Two No. 2 valves are symmetrically and fixedly installed at both ends of the air inlet pipe.

[0024] Preferably, the lower end of the heating tube is connected to a fan that is fixedly connected to the tubular furnace, the air outlet of the fan is fixedly connected to the tubular furnace through a pipe, and multiple air distribution holes are opened at equal angles on the outer surface of the air inlet pipe.

[0025] Preferably, a water inlet pipe is fixedly inserted inside the tubular furnace, with one end of the pipe being fixedly connected to the second heat-conducting coil. A heating water tank is installed on the ground on one side of the tubular furnace. A circulating water pump connected to the first heat-conducting coil is fixedly installed above the heating water tank. One end of the water inlet pipe is fixedly connected to the heating water tank.

[0026] Compared with the prior art, the beneficial effects of this utility model are:

[0027] 1. As flue gas enters the filter chamber, incompletely burned dust is filtered by the filter cartridges and adheres to their outer side. The motor rotates, driving the rotating frame and brush plates to rotate, causing the brush plates to brush off the dust particles on the outside of the filter cartridges, which fall into the dust collection hood. The fan operates, blowing outside air from the air distribution holes towards the lower end of the dust collection hood. The airflow carries the dust particles from the lower end of the dust collection hood synchronously into the tubular furnace. This allows the air to carry the incompletely burned flue gas particles into the combustion chamber of the tubular furnace for re-combustion, improving the utilization rate of flue gas particles. At the same time, it avoids the excessive amount of flame-retardant gases inside the flue gas from hindering the combustion of fuel in the combustion chamber, thus improving fuel utilization efficiency.

[0028] 2. The water that has absorbed heat and flows through the No. 2 heat conduction coil heats the incoming air, increasing the air temperature entering the tubular furnace and reducing the impact of low-temperature air on the internal temperature of the tubular furnace.

[0029] 3. When the rotating frame rotates, the meshing transmission of the gear ring and gears causes the rotating rod to drive the stirring rod to rotate. The stirring rod stirs the dust particles inside the dust collection hood, preventing the dust particles from clogging and allowing them to flow downwards more smoothly. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the vertical cross-sectional structure of the filter assembly and the air intake assembly in this utility model;

[0032] Figure 3 This is a schematic diagram of the cleaning component structure in this utility model;

[0033] Figure 4 This is a schematic diagram of the disassembled structure of the cleaning component and filter cartridge in this utility model;

[0034] Figure 5 This is a side cross-sectional view of the air intake assembly in this utility model.

[0035] In the diagram: 1. Tubular furnace; 101. Heat conduction coil No. 1; 102. Circulating water pump; 103. Heating water tank; 104. Water inlet pipe; 2. Filter assembly; 201. Filter chamber; 202. Connecting pipe; 203. Valve No. 1; 204. Baffle plate; 205. Filter cartridge; 206. Dust collection hood; 3. Cleaning assembly; 301. Rotating frame; 302. Brush plate; 303. Gear ring; 304. Support frame; 305. Rotating rod; 306. Gear; 307. Stirring rod; 308. Motor; 4. Air intake assembly; 401. Heating tube; 402. Heat conduction coil No. 2; 403. Air intake pipe; 404. Air distribution hole; 405. Valve No. 2; 406. Fan. Detailed Implementation

[0036] 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.

[0037] Please see Figure 1-5 In this embodiment of the present invention, a tubular furnace for coal tar processing includes a tubular furnace 1. A heat-conducting coil 101 is fixedly installed inside the tubular furnace 1. A dust removal mechanism is provided on the outside of the tubular furnace 1. The dust removal mechanism includes a filter assembly 2. The filter assembly 2 includes a filter chamber 201 fixedly installed on the outer surface of the tubular furnace 1. A partition 204 is fixedly installed inside the filter chamber 201. A filter cartridge 205 is fixedly embedded on one side surface of the partition 204. The lower surface inside the filter chamber 201 is fixedly... A dust collection hood 206 is installed, a cleaning component 3 is movably located on the outside of the filter cartridge 205, and an air intake component 4 is fixedly installed on the lower surface of the filter chamber 201. A water inlet pipe 104 is fixedly inserted inside the tubular furnace 1, with one end of it fixedly connected to the second heat conduction coil 402. A heating water tank 103 is set on the ground on one side of the tubular furnace 1. A circulating water pump 102 connected to the first heat conduction coil 101 is fixedly installed above the heating water tank 103. One end of the water inlet pipe 104 is fixedly connected to the heating water tank 103.

[0038] Specifically, the filter assembly 2 filters the flue gas discharged from the tubular furnace 1, so that the filtered flue gas is discharged from the top of the filter cartridge 205. The cleaning assembly 3 scrapes off the unburned soot on the outside of the filter cartridge 205, so that it falls into the air intake assembly 4. As the air re-enters the tubular furnace 1, the circulating water pump 102 circulates the water in the heating water tank 103, and absorbs the heat in the flue gas through the first heat conduction coil 101.

[0039] Example 1

[0040] like Figure 1 , Figure 2 and Figure 5As shown, in this embodiment, a valve 203 is fixedly connected to the upper end of the tubular furnace 1, and a connecting pipe 202 is fixedly connected to one end of the valve 203. One end of the connecting pipe 202 is fixedly connected to the filter chamber 201. The air intake assembly 4 includes: a heating tube 401 fixedly installed on the lower surface of the filter chamber 201; a second heat-conducting coil 402 fixedly installed inside the heating tube 401, and one end of the coil is fixedly connected to the first heat-conducting coil 101; an air intake pipe 403 fixedly embedded in the upper part of the outer surface of the heating tube 401; and two valves 405 symmetrically fixedly installed at both ends of the air intake pipe 403. A fan 406 fixedly connected to the tubular furnace 1 is connected to the lower end of the heating tube 401. The outlet of the fan 406 is fixedly connected to the tubular furnace 1 through a pipe. Multiple air distribution holes 404 are opened at equal angles on the outer surface of the air intake pipe 403.

[0041] In this embodiment, valve 203 is opened, allowing flue gas to enter the filter chamber 201. Incompletely burned flue gas particles are filtered by filter cartridge 205, adhering to its outer side, and then scraped off by cleaning component 3, falling into dust collection hood 206. Valve 405 is opened, and fan 406 operates, allowing outside air to enter the intake pipe 403 and blown from the air distribution hole 404 towards the lower end of dust collection hood 206. The airflow carries the flue gas particles from the lower end of dust collection hood 206 synchronously into the tubular furnace 1, thereby allowing the air to carry the incompletely burned flue gas particles into the combustion chamber of the tubular furnace 1 for re-combustion, improving the utilization rate of flue gas particles. At the same time, it avoids the large amount of flame-retardant gas inside the flue gas from hindering the combustion of fuel in the combustion chamber, improving fuel utilization efficiency. Meanwhile, the water that has absorbed heat and flows through the second heat-conducting coil 402 heats the incoming air, increasing the air temperature entering the tubular furnace 1 and reducing the impact of low-temperature air on the internal temperature of the tubular furnace 1.

[0042] like Figure 3 and Figure 4 As shown, in this embodiment, the cleaning component 3 includes: a support frame 304 fixedly installed on the inner surface of the dust collection hood 206, a rotating rod 305 symmetrically rotatably connected to the inner surface of the support frame 304, a motor 308 fixedly installed on the outer surface of the support frame 304, a rotating frame 301 fixedly installed on the output end of the motor 308, and a brush plate 302 fixedly installed on the outer surface of the rotating frame 301 and slidably attached to the filter cartridge 205.

[0043] In practice, the motor 308 operates, driving the rotating frame 301 and the brush plate 302 to rotate, so that the brush plate 302 brushes off the dust particles on the outside of the filter cartridge 205, while maintaining the permeability of the filter cartridge 205.

[0044] Example 2

[0045] Based on Embodiment 1, in order to compensate for the problem that dust particles are prone to clogging inside the dust collection hood 206.

[0046] like Figure 3 and Figure 4 As shown, in this embodiment, a gear ring 303 is fixedly installed on the lower surface of the rotating frame 301, a gear 306 that meshes and drives with the gear ring 303 is fixedly installed on the upper end of the rotating rod 305, and a stirring rod 307 is fixedly installed on the lower end of the rotating rod 305.

[0047] In practice, when the rotating frame 301 rotates, the meshing transmission of the gear ring 303 and the gear 306 causes the rotating rod 305 to drive the stirring rod 307 to rotate. The stirring rod 307 stirs the dust particles inside the dust collection hood 206 to prevent the dust particles from clogging and to make them flow downward more smoothly.

[0048] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A tubular furnace for coal tar processing, comprising a tubular furnace (1), wherein a heat-conducting coil (101) is fixedly installed inside the tubular furnace (1), characterized in that, The outer side of the tubular furnace (1) is provided with a dust removal mechanism, which includes: The filter assembly (2) includes a filter chamber (201) fixedly installed on the outer surface of the tubular furnace (1), a partition (204) fixedly installed inside the filter chamber (201), a filter cartridge (205) fixedly embedded on one side surface of the partition (204), and a dust collection hood (206) fixedly installed on the lower surface inside the filter chamber (201). The cleaning component (3) is movably located on the outside of the filter cartridge (205); The air intake assembly (4) is fixedly installed on the lower surface of the filter chamber (201).

2. The tubular furnace for coal tar processing according to claim 1, characterized in that, The upper end of the tubular furnace (1) is fixedly connected to a valve (203), one end of which is fixedly connected to a connecting pipe (202), and one end of the connecting pipe (202) is fixedly connected to the filter chamber (201).

3. The tubular furnace for coal tar processing according to claim 1, characterized in that, The cleaning component (3) includes: The support frame (304) is fixedly installed on the inner surface of the dust collection hood (206); The rotating rod (305) is symmetrically rotatably connected to the inner surface of the support frame (304); The motor (308) is fixedly installed on the outer surface of the support frame (304); A rotating frame (301) is fixedly installed at the output end of the motor (308); The brush plate (302) is fixedly installed on the outer surface of the rotating frame (301) and slides against the filter cartridge (205).

4. The tubular furnace for coal tar processing according to claim 3, characterized in that, A gear ring (303) is fixedly installed on the lower surface of the rotating frame (301), a gear (306) that meshes and drives with the gear ring (303) is fixedly installed on the upper end of the rotating rod (305), and a stirring rod (307) is fixedly installed on the lower end of the rotating rod (305).

5. The tubular furnace for coal tar processing according to claim 1, characterized in that, The intake assembly (4) includes: Heating element (401) is fixedly installed on the lower surface of filter chamber (201); The second heat-conducting coil (402) is fixedly installed inside the heating tube (401), and one end is fixedly connected to the first heat-conducting coil (101); An air inlet pipe (403) is fixedly embedded and installed at the upper end of the outer surface of the heating pipe (401); Two No. 2 valves (405) are symmetrically fixed at both ends of the air inlet pipe (403).

6. The tubular furnace for coal tar processing according to claim 5, characterized in that, The lower end of the heating tube (401) is connected to a fan (406) that is fixedly connected to the tubular furnace (1). The air outlet of the fan (406) is fixedly connected to the tubular furnace (1) through a pipe. Multiple air distribution holes (404) are opened at equal angles on the outer surface of the air inlet pipe (403).

7. The tubular furnace for coal tar processing according to claim 5, characterized in that, The tubular furnace (1) has a water inlet pipe (104) with one end fixedly connected to the second heat conduction coil (402). A heating water tank (103) is set on the ground on one side of the tubular furnace (1). A circulating water pump (102) connected to the first heat conduction coil (101) is fixedly installed above the heating water tank (103). One end of the water inlet pipe (104) is fixedly connected to the heating water tank (103).

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