A petrochemical heating furnace

Abstract

The utility model provides a kind of petroleum chemical heating furnace, including furnace body, the heat preservation shell being set to furnace body exterior, the smoke pipe being communicated at furnace body exterior and the smoke pipe being communicated at heat preservation shell exterior, the output end of the smoke pipe and the input end of smoke pipe are commonly communicated with flue gas filtering assembly, the flue gas filtering assembly includes purification tank, the inside of the purification tank is provided with arc filter screen, the inner wall of the purification tank is rotatably connected with pivot, the outer surface of the pivot is fixedly connected with cleaning brush.The petroleum chemical heating furnace, by the flue gas filtering assembly being set, utilize arc filter screen can filter dust in flue gas, simultaneously by cleaning brush, residual dust on arc filter screen can be cleaned to make dust fall to the inside of dust removal frame, and dust cleaned down can be automatically discharged from flue gas filtering area by dust removal frame simultaneously, further reduce the resistance when flue gas flows through arc filter screen, ensure the normal conveying of flue gas.

Description

Technical Field

[0001] This utility model relates to the field of heating furnace technology, and in particular to a petrochemical heating furnace. Background Technology

[0002] A heating furnace is a device that heats materials or workpieces to the rolling or forging temperature. In the petroleum processing field, the heating furnace is a core piece of equipment that runs through the entire process of crude oil pretreatment, fractionation, and conversion. It can achieve efficient conversion from crude oil to various oil products. In the petroleum refining process, the heating furnace can precisely heat the crude oil, causing it to vaporize and then be separated into different fractions such as gasoline, diesel, and wax oil in the fractionation tower.

[0003] Application No. 202323122008.9 discloses an environmentally friendly and energy-saving petrochemical heating furnace, including an insulation shell. A pipe is installed inside the insulation shell, with an inlet pipe connected to the bottom end of the pipe and a conveying pipe connected to the bottom end of the inlet pipe. A pressure plate is mounted above the conveying pipe, and an exhaust pipe installed on the insulation shell is connected to the top end of the pipe. This environmentally friendly and energy-saving petrochemical heating furnace, by inputting the flue gas generated by the heating of petroleum and other materials during the furnace operation into the conveying pipe, and through the cooperation of a filter screen, can effectively filter the exhaust gas, thus avoiding the problem of flue gas adhering to the pipe and causing blockage. It also facilitates daily maintenance of the device, improves the insulation effect, and, through the cooperation of the rotating plate and the pressure plate, allows for the disassembly of the filter screen, achieving a timed cleaning effect and improving the flue gas filtration efficiency.

[0004] The above solution has shortcomings in use. The filter screen needs to be manually disassembled and cleaned regularly. If the dust is not removed in time, the dust will accumulate on the filter screen to form a filter cake layer, which will greatly increase the resistance to flue gas flow and affect the flue gas delivery. Therefore, we provide a petrochemical heating furnace. Summary of the Invention

[0005] This utility model provides a petrochemical heating furnace to solve the technical problems existing in the background art.

[0006] The purpose and effect of this utility model of a petrochemical heating furnace are achieved by the following specific technical means: A petrochemical heating furnace includes a furnace body, an insulation shell disposed outside the furnace body, an exhaust pipe connected to the outside of the furnace body, and a smoke conveying pipe connected to the outside of the insulation shell. The output end of the exhaust pipe and the input end of the smoke conveying pipe are connected to a flue gas filter assembly. The flue gas filter assembly includes a purification box. An arc-shaped filter screen is disposed inside the purification box. A rotating shaft is rotatably connected to the inner wall of the purification box. A cleaning brush is fixedly connected to the outer surface of the rotating shaft. The flue gas filtration assembly also includes a drive structure located on the front of the purification chamber for driving the cleaning brush to clean the arc-shaped filter screen, and a dust removal structure located at the bottom of the purification chamber.

[0007] Preferably, the drive structure includes a motor mounted on the front of the purification box, and the output end of the motor and the front end of the rotating shaft are both fixedly connected with gears, and a toothed belt is fitted around the outside of the two gears.

[0008] Preferably, the dust removal structure includes a dust removal frame embedded in the bottom of the purification box, and the dust removal frame is located on the left side of the bottom end of the arc-shaped filter.

[0009] Preferably, a sealing plate is slidably connected to the left side of the dust removal frame, and a sealing pad is provided on the outer surface of the sealing plate.

[0010] Preferably, a push plate is fixedly connected to the front of one of the two gears, a pull plate is provided on the left side of the push plate, and the right side of the pull plate is connected to the left end of the sealing plate.

[0011] Preferably, two sets of sliding rods are slidably connected to the left side of the pull plate, the right end of each sliding rod is connected to the left side of the dust removal frame, the left end of each set of sliding rods is fixedly connected to a baffle, and a spring is sleeved on the outside of each sliding rod.

[0012] Preferably, a U-shaped frame is fixedly connected to both the left and right sides of the dust removal frame, and a hanging plate is slidably connected to the inner wall of each U-shaped frame. A collection box is fixedly connected to the bottom of the two hanging plates.

[0013] Preferably, a set of reinforcing plates is fixedly connected to the right side of the purification box, and the right end of each reinforcing plate is connected to the outer surface of the insulation shell.

[0014] Beneficial effects: The flue gas filtration assembly utilizes an arc-shaped filter screen to filter dust from the flue gas. Simultaneously, a cleaning brush removes residual dust from the arc-shaped filter screen, causing the dust to fall into the dust collection frame. The cleaned dust is then automatically discharged from the flue gas filtration area through the dust collection frame, further reducing the resistance of the flue gas flow through the arc-shaped filter screen and ensuring normal flue gas delivery.

[0015] The sliding rod, baffle and spring are designed to guide the movement of the pull plate. When the push plate is separated from the pull plate, it can apply a holding force to the pull plate, so that the pull plate can automatically push the sealing plate to reset, further ensuring the sealing effect of the dust discharge frame and effectively preventing the smoke from leaking from the dust discharge port. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0017] Figure 2 This is a three-dimensional structural diagram of the flue gas filter assembly of this utility model.

[0018] Figure 3 This is a three-dimensional structural schematic diagram of the purification box of this utility model, shown in a cross-sectional view.

[0019] Figure 4 This is a three-dimensional structural diagram of the dust removal frame of this utility model.

[0020] Figure 1-4 In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Furnace body; 2. Insulation shell; 3. Exhaust pipe; 4. Smoke conveying pipe; 5. Flue gas filter assembly; 501. Purification box; 502. Arc-shaped filter screen; 503. Rotating shaft; 504. Cleaning brush; 505. Motor; 506. Gear belt; 507. Toothed belt; 508. Dust removal frame; 509. Sealing plate; 510. Push plate; 511. Pull plate; 512. Slide rod; 513. Baffle; 514. Spring; 515. U-shaped frame; 516. Hanging plate; 517. Collection box; 518. Reinforcing plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] As attached Figure 1 To be continued Figure 4 As shown: A petrochemical heating furnace includes a furnace body 1, an insulation shell 2 disposed outside the furnace body 1, an exhaust pipe 3 connected to the outside of the furnace body 1, and a smoke conveying pipe 4 connected to the outside of the insulation shell 2. The high-temperature flue gas generated by the furnace body 1 can be transported to the inside of the insulation shell 2 through the exhaust pipe 3 and the smoke conveying pipe 4, thereby achieving the effect of heat preservation for the furnace body 1.

[0023] As attached Figure 2 With appendix Figure 3As shown: The output end of the exhaust pipe 3 and the input end of the smoke supply pipe 4 are connected to a flue gas filter assembly 5. The flue gas filter assembly 5 includes a purification box 501. An arc-shaped filter screen 502 is installed inside the purification box 501. The flue gas is filtered by the arc-shaped filter screen 502, thereby preventing dust in the flue gas from entering the interior of the insulation shell 2. A rotating shaft 503 is rotatably connected to the inner wall of the purification box 501. A cleaning brush 504 is fixedly connected to the outer surface of the rotating shaft 503. A set of reinforcing plates 518 is fixedly connected to the right side of the purification box 501. The right end of each reinforcing plate 518 is connected to the outer surface of the insulation shell 2. The reinforcing plates 518 can connect the purification box 501 and the insulation shell 2, improving the stability of the purification box 501.

[0024] As attached Figure 2 With appendix Figure 3 As shown: The flue gas filtration assembly 5 also includes a drive structure disposed on the front of the purification box 501 for driving the cleaning brush 504 to clean the arc-shaped filter screen 502. The drive structure includes a motor 505 installed on the front of the purification box 501. The output end of the motor 505 and the front end of the rotating shaft 503 are both fixedly connected to a gear 506. The two gears 506 are jointly fitted with a toothed belt 507. The motor 505 is controlled to work by the control panel at a timer. The motor 505 can drive the gear 506 to rotate. At the same time, the toothed belt 507 will drive the other gear 506 to rotate. The rotating shaft 503 will drive the cleaning brush 504 to clean the arc-shaped filter screen 502.

[0025] As attached Figure 2 Appendix Figure 3 With appendix Figure 4 As shown: A dust removal structure is set at the bottom of the purification box 501. The dust removal structure includes a dust removal frame 508 embedded in the bottom of the purification box 501. The dust removal frame 508 is located on the left side of the bottom of the arc-shaped filter screen 502. The cleaned dust will fall into the dust removal frame 508 along the arc-shaped filter screen 502. A sealing plate 509 is slidably connected to the left side of the dust removal frame 508. A sealing pad is provided on the outer surface of the sealing plate 509. The sealing plate 509 can seal the dust removal frame 508 to prevent the leakage of flue gas.

[0026] As attached Figure 4As shown: Two gears 506 are present. A push plate 510 is fixedly connected to the front of one of the gears 506. A pull plate 511 is located on the left side of the push plate 510. The right side of the pull plate 511 is connected to the left end of the sealing plate 509. Two sets of slide rods 512 are slidably connected to the left side of the pull plate 511. The right end of each slide rod 512 is connected to the left side of the dust removal frame 508. A baffle 513 is fixedly connected to the left end of each set of slide rods 512. A spring 514 is sleeved on the outside of each slide rod 512. The motor 505 outputs power. When the gear 506 at the outlet rotates, it drives the push plate 510 to rotate. The rotation of the push plate 510 pushes the pull plate 511, which pulls the sealing plate 509. The dust accumulated on the sealing plate 509 will fall into the collection box 517 along the dust discharge frame 508. At the same time, when the pull plate 511 moves, it will squeeze the spring 514. When the push plate 510 disengages from the pull plate 511, the spring 514 will extend and push the pull plate 511, so that the pull plate 511 can push the sealing plate 509 to automatically reset and seal the dust discharge frame 508.

[0027] As attached Figure 4 As shown: U-shaped frames 515 are fixedly connected to both the left and right sides of the dust removal frame 508. A hanging plate 516 is slidably connected to the inner wall of each U-shaped frame 515. A collection box 517 is fixedly connected to the bottom of the two hanging plates 516. The U-shaped frames 515 can stably support the hanging plates 516, so that the collection box 517 is stably positioned below the dust removal frame 508, and the discharged dust can be accurately collected.

[0028] Working principle: When the flue gas inside the furnace body 1 enters the purification box 501 through the exhaust pipe 3, the arc-shaped filter 502 filters the flue gas. The filtered flue gas then enters the insulation shell 2 through the exhaust pipe 4 to keep the furnace body 1 warm. When it is necessary to clean the dust on the arc-shaped filter 502, the motor 505 is started on a timer via the control panel. The motor 505 drives the gear 506 to rotate. Simultaneously, under the transmission of the toothed belt 507, another gear 506 drives the rotating shaft 503 to rotate. The cleaning brush 504 then rotates to clean the dust on the arc-shaped filter 502. The dust slides into the sealed area inside the dust discharge frame 508. When the motor 505 outputs gear 506 and rotates, it drives the push plate 510 to rotate. The rotation of the push plate 510 pushes the pull plate 511, which pulls the sealing plate 509. The dust accumulated on the sealing plate 509 will fall into the collection box 517 along the dust discharge frame 508. At the same time, when the pull plate 511 moves, it will squeeze the spring 514. When the push plate 510 disengages from the pull plate 511, the spring 514 will extend and push the pull plate 511, so that the pull plate 511 can push the sealing plate 509 to automatically reset and seal the dust discharge frame 508. This replaces the manual cleaning of the filtered dust in time, so as not to affect the flow of flue gas.

Claims

1. A petrochemical heating furnace, comprising a furnace body (1), an insulation shell (2) disposed outside the furnace body (1), a flue pipe (3) connected to the outside of the furnace body (1), and a flue pipe (4) connected to the outside of the insulation shell (2), characterized in that: The output end of the exhaust pipe (3) and the input end of the smoke supply pipe (4) are connected to a flue gas filter assembly (5). The flue gas filter assembly (5) includes a purification box (501). An arc-shaped filter screen (502) is provided inside the purification box (501). A rotating shaft (503) is rotatably connected to the inner wall of the purification box (501). A cleaning brush (504) is fixedly connected to the outer surface of the rotating shaft (503). The flue gas filtration assembly (5) also includes a drive structure disposed on the front of the purification box (501) for driving the cleaning brush (504) to clean the arc-shaped filter screen (502) and a dust discharge structure disposed at the bottom of the purification box (501).

2. The petrochemical heating furnace according to claim 1, characterized in that: The drive structure includes a motor (505) installed on the front of the purification box (501). The output end of the motor (505) and the front end of the rotating shaft (503) are both fixedly connected with gears (506). The two gears (506) are together fitted with a toothed belt (507).

3. The petrochemical heating furnace according to claim 1, characterized in that: The dust removal structure includes a dust removal frame (508) embedded in the bottom of the purification box (501), and the dust removal frame (508) is located on the left side of the bottom end of the arc-shaped filter (502).

4. The petrochemical heating furnace according to claim 3, characterized in that: The dust removal frame (508) is slidably connected to a sealing plate (509) on its left side, and a sealing pad is provided on the outer surface of the sealing plate (509).

5. The petrochemical heating furnace according to claim 2, characterized in that: A push plate (510) is fixedly connected to the front of one of the two gears (506). A pull plate (511) is provided on the left side of the push plate (510). The right side of the pull plate (511) is connected to the left end of the sealing plate (509).

6. The petrochemical heating furnace according to claim 5, characterized in that: Two sets of slide rods (512) are slidably connected to the left side of the pull plate (511). The right end of each slide rod (512) is connected to the left side of the dust removal frame (508). A baffle (513) is fixedly connected to the left end of each set of slide rods (512). A spring (514) is sleeved on the outside of each slide rod (512).

7. The petrochemical heating furnace according to claim 3, characterized in that: The dust removal frame (508) is fixedly connected to U-shaped frames (515) on both the left and right sides. Each U-shaped frame (515) is slidably connected to a hanging plate (516) on its inner wall. The bottom ends of the two hanging plates (516) are fixedly connected to a collection box (517).

8. The petrochemical heating furnace according to claim 1, characterized in that: A set of reinforcing plates (518) are fixedly connected to the right side of the purification box (501), and the right end of each reinforcing plate (518) is connected to the outer surface of the heat insulation shell (2).

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