Furfural production boiler flue gas dust remover

Abstract

The utility model discloses a furfural production boiler flue gas dust remover, which relates to the technical field of furfural production and comprises a dust removal box, an air inlet pipe and an air outlet pipe are respectively fixed on two side walls of the dust removal box, a connecting ring is sleeved on one side of the air outlet pipe far away from the dust removal box, and the inner side of the connecting ring is in threaded connection with a filter pipe hermetically butted with the air outlet pipe. A filtering assembly is arranged in the filtering pipe; water in the water storage tank is pumped into the water pumping pipe through the water suction pump, then the water is injected into the spraying dust-falling mechanism through the water pumping pipe, and the spraying dust-falling mechanism is used for performing spraying dust falling on flue gas in the dust removal box, so that large-particle dust and small particles in the flue gas are removed, and part of harmful gas is hydrolyzed; according to the flue gas dust remover for the furfural production boiler, the flue gas subjected to spraying and dust falling is subjected to secondary purification and filtration through the filter assembly in the filter pipe, so that harmful gas in the flue gas is removed, and the flue gas dust remover for the furfural production boiler not only can remove large-particle dust, but also has a good removal effect on small particles and harmful gas in the flue gas, and is relatively environment-friendly.

Description

Technical Field

[0001] The utility model relates to the technical field of furfural production, in particular to a flue gas dust collector for furfural production boilers. Background Art

[0002] Furfural is an organic compound, a colorless, transparent, oily liquid with a special smell similar to benzaldehyde. It is mainly used as an industrial solvent. During the production process of furfural, the flue gas generated by the combustion of biomass boilers used for furfural production contains dust and harmful gases, which need to be effectively removed to meet environmental emission standards.

[0003] The prior art mainly relies on physical filtration, and generally uses a bag dust collector to remove dust from the flue gas of furfural production boilers. Although it can remove larger particles of dust, it is not effective in removing tiny particles and some harmful gases in the flue gas. It is not environmentally friendly and has low practicality. Therefore, the utility model proposes a furfural production boiler flue gas dust collector to solve the problems existing in the prior art. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to propose a furfural production boiler flue gas dust collector to solve the problem that in the prior art, bag dust collectors are generally used to remove dust from furfural production boiler flue gas. Although larger particles of dust can be removed, the removal effect on tiny particles and some harmful gases in the flue gas is poor.

[0005] In order to achieve the purpose of the utility model, the utility model is implemented through the following technical scheme: a flue gas dust collector for furfural production boiler, including a dust box, wherein two side walls of the dust box are respectively fixed with an air inlet pipe and an air outlet pipe, a connecting ring is sleeved on the side of the air outlet pipe away from the dust box, the inner side of the connecting ring is threadedly connected with a filter tube that is sealed and docked with the air outlet pipe, a filter assembly is arranged inside the filter tube, a water storage tank is fixed to the bottom end of the dust box, a water outlet connected to the water storage tank is opened at the bottom of the dust box, a water pump is fixed to the bottom end of the water storage tank, a water pump is fixed to the output end of the water pump, and a water pump that runs through the outside of the water storage tank is fixed to the output end of the water pump, the end of the water pump that runs through the top of the dust box away from the water pump runs through the top of the dust box and is fixed with a spray dust reduction mechanism, a filter screen plate is inserted and inserted inside the dust box, and a sealed box door corresponding to the position of the filter screen plate is hinged on the front of the dust box.

[0006] Further improvements are as follows: exhaust fans are fixed inside the air inlet pipe and the air outlet pipe, a smoke exhaust pipe connected to the smoke exhaust port of the biomass boiler is fixed at one end of the air inlet pipe away from the dust removal box, and a particulate filter cotton layer, an ultrafine fiber filter cotton layer and an activated carbon filter layer are fixed inside the filter pipe at equal intervals.

[0007] Further improvement is that: a support frame is fixed to the lower part of the inner wall of the dust removal box, the filter screen is inserted into the top of the support frame, the top of the support frame is symmetrically fixed with inserting posts, and the bottom of the filter screen is symmetrically provided with inserting slots adapted to the inserting posts.

[0008] A further improvement is that an annular groove is provided on the inner wall of the connecting ring away from the filter tube, a limiting ring adapted to the annular groove is fixed on the outer wall of the air outlet pipe, an external thread is provided on the outer wall of the air outlet pipe, and an internal thread is provided on the inner wall of the connecting ring away from the air outlet pipe.

[0009] A further improvement is that an annular sealing groove is provided at one end of the air outlet pipe close to the filter pipe, and an annular sealing ring adapted to the annular sealing groove is fixed at one end of the filter pipe close to the air outlet pipe.

[0010] A further improvement is that the spray dust reduction mechanism includes an annular tube located above the inside of the dust removal box and a water injection pipe equidistantly fixed on the inner wall of the annular tube, the end of the water injection pipe away from the annular tube is connected to the water suction pipe, and spray heads are equidistantly fixed at the bottom ends of the annular tube and the water injection pipe.

[0011] A further improvement is that a water inlet pipe and a drain pipe are fixed to both side walls of the water storage tank, control valves are installed on both the water inlet pipe and the drain pipe, and support legs are fixed to the four corners of the bottom end of the dust removal box.

[0012] The beneficial effects of the utility model are as follows: the utility model comprises a dust removal box, water inside the water storage tank is first pumped into a water suction pipe by a water pump, and then injected into a spray dust reduction mechanism by the water suction pipe, and the flue gas in the dust removal box is sprayed with dust reduction by the spray dust reduction mechanism to remove large particles of dust and tiny particles in the flue gas, and hydrolyze part of the harmful gases, and then the flue gas after the spray dust reduction is secondary purified and filtered by the filter component in the filter tube to remove the harmful gases therein, so that the flue gas dust collector of the furfural production boiler can not only remove larger particles of dust, but also has a good removal effect on tiny particles and harmful gases in the flue gas, is more environmentally friendly, and has higher practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view of the utility model;

[0014] Figure 2 It is a front cross-sectional view of the utility model;

[0015] Figure 3 This utility model Figure 2 A in the enlarged view;

[0016] Figure 4 It is a side view of the utility model;

[0017] Figure 5 It is a cross-sectional view of the air outlet pipe and the filter pipe of the utility model;

[0018] Figure 6 It is a bottom view of the spray dust reduction mechanism of the utility model.

[0019] Among them: 1. Dust removal box; 2. Air inlet pipe; 3. Air outlet pipe; 4. Connecting ring; 5. Filter pipe; 6. Water storage tank; 7. Water pump; 8. Water pump pipe; 9. Filter screen; 10. Sealed box door; 11. Exhaust fan; 12. Smoke exhaust pipe; 13. Support frame; 14. Embossed column; 15. Embossed slot; 16. Annular groove; 17. Limiting ring; 18. Annular sealing groove; 19. Annular sealing ring; 20. Annular pipe; 21. Water injection pipe; 22. Sprinkler head; 23. Water inlet pipe; 24. Drain pipe. DETAILED DESCRIPTION

[0020] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0021] according to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, this embodiment provides a furfural production boiler flue gas dust collector, including a dust removal box 1 for spraying dust reduction on the furfural production boiler flue gas, wherein an air inlet pipe 2 is fixed to the left wall of the dust removal box 1, and an air outlet pipe 3 is fixed to the right wall of the dust removal box 1, and exhaust fans 11 are fixed to the air inlet pipe 2 and the air outlet pipe 3 by bolts, and both sets of exhaust fans 11 exhaust air from left to right, and a connecting ring 4 is provided on the right side of the air outlet pipe 3. A filter tube 5 is threadedly connected to the inner side of the connecting ring 4, and the filter tube 5 is sealed and docked with the air outlet pipe 3. A filter assembly for filtering and purifying harmful gases in the flue gas is arranged inside the filter tube 5. A water storage tank 6 for storing water for spraying is fixed to the bottom of the dust removal box 1 by bolts. A water outlet is arranged at the bottom of the dust removal box 1 and is connected to the water storage tank 6 through the water outlet, so that the water in the dust removal box 1 can flow into the water storage tank 6. A water pump 7 for pumping water is fixed to the bottom of the water storage tank 6. A water pump 8 is fixed to the output outlet of the water pump 7. The end of the water pump 8 away from the water pump 7 passes through the outside of the water storage tank 6. The end of the pipe 8 away from the water pump 7 passes through the dust removal box 1 from the top to the inside of the dust removal box 1 and is fixed with a spray dust reduction mechanism for spraying dust on the flue gas. A filter screen plate 9 for filtering and intercepting large particles of dust and tiny particles in the water is inserted and inserted into the dust removal box 1. A sealed box door 10 is hinged on the front of the dust removal box 1 through a hinge, and the sealed box door 10 is located with the filter screen plate 9, which is convenient for taking out the filter screen plate 9 for cleaning or replacement. First, the water in the water storage tank 6 is pumped into the pump 7 through the water pump 7. The water pipe 8 is then injected into the spray dust reduction mechanism through the pumping pipe 8, and the flue gas in the dust removal box 1 is sprayed with dust reduction by the spray dust reduction mechanism to remove large dust particles and tiny particles in the flue gas, and hydrolyze some harmful gases, and then the flue gas that has passed the spray dust reduction is secondary purified and filtered through the filter component in the filter tube 5 to remove the harmful gases therein, so that the furfural production boiler flue gas dust collector can not only remove larger particles of dust, but also has a good removal effect on tiny particles and harmful gases in the flue gas.

[0022] A smoke exhaust pipe 12 is welded and fixed to one end of the air inlet pipe 2 away from the dust removal box 1, and the left end of the smoke exhaust pipe 12 is connected to the smoke exhaust port of the biomass boiler. The filter component includes a particulate filter cotton layer, a superfine fiber filter cotton layer and an activated carbon filter layer, and the particulate filter cotton layer, the superfine fiber filter cotton layer and the activated carbon filter layer are equidistantly distributed from left to right inside the filter tube 5, which is used for triple filtration and purification of the flue gas after spraying dust reduction.

[0023] A support frame 13 is fixed to the lower part of the inner wall of the dust removal box 1, and the filter screen plate 9 is inserted into the top of the support frame 13. The support frame 13 is used to provide support for the filter screen plate 9. The top of the support frame 13 is welded and fixed with symmetrically distributed inserting columns 14. An inserting slot 15 is opened at the bottom of the filter screen plate 9, and the inserting slot 15 is adapted to the inserting column 14. The filter screen plate 9 is inserted into the top of the support frame 13 through the cooperation of the inserting column 14 and the inserting slot 15, so that it is easy to disassemble and assemble.

[0024] An annular groove 16 is provided on the inner wall on the left side of the connecting ring 4, and a limiting ring 17 adapted to the annular groove 16 is fixed on the outer wall of the air outlet pipe 3, and the limiting ring 17 extends into the annular groove 16. An external thread is provided on the outer wall of the air outlet pipe 3, and an internal thread is provided on the inner wall of the connecting ring 4 away from the air outlet pipe 3. The connecting ring 4 is screwed onto the filter tube 5 and continuously moved to the right until the inner wall on the left side of the annular groove 16 conflicts with the limiting ring 17, thereby driving the filter tube 5 to closely connect with the air outlet pipe 3.

[0025] An annular sealing groove 18 is provided at the right end of the air outlet pipe 3, and an annular sealing ring 19 is fixed at the left end of the filter tube 5, and the annular sealing ring 19 is adapted to the annular sealing groove 18, and the air outlet pipe 3 and the filter tube 5 are sealed and connected through the cooperation of the annular sealing groove 18 and the annular sealing ring 19.

[0026] The spray dust reduction mechanism includes an annular tube 20 and a water injection pipe 21, wherein the annular tube 20 is located above the inside of the dust removal box 1, and six water injection pipes 21 are provided and are equidistantly fixed on the inner wall of the annular tube 20. The end of the water injection pipe 21 away from the annular tube 20 is connected to the water extraction pipe 8. The bottom ends of the annular tube 20 and the water injection pipe 21 are fixed with equidistantly distributed spray heads 22. The water in the water extraction pipe 8 is injected into the annular tube 20 through the water injection pipe 21, and sprayed out through the spray head 22 to achieve spray dust reduction.

[0027] An inlet pipe 23 is fixed to the upper part of the left side wall of the water tank 6, and a drain pipe 24 is fixed to the lower part of the right side wall of the water tank 6. Control valves are installed on the inlet pipe 23 and the drain pipe 24 to facilitate the control of drainage and water inlet. Support legs are fixed at the four corners of the bottom end of the dust removal box 1 by bolts to provide stable support for the dust removal box 1.

[0028] When it is necessary to remove dust from the flue gas generated by the combustion of the biomass boiler during the furfural production process, first connect the exhaust pipe 12 at the left end of the air inlet pipe 2 to the exhaust port of the biomass boiler and turn on the exhaust fan 11 in the air inlet pipe 2 and the air outlet pipe 3, so that the flue gas discharged from the biomass boiler enters the dust removal box 1 from the air inlet pipe 2. When the flue gas enters the dust removal box 1, start the water pump 7 to pump the water in the water storage tank 6 into the water pumping pipe 8, and then inject the water from the water pumping pipe 8 into the spray dust reduction mechanism, and spray the flue gas in the dust removal box 1 through the spray dust reduction mechanism to reduce dust, part of the harmful gas is hydrolyzed, large particles of dust and tiny particles in the flue gas fall with the water, and are filtered and intercepted by the filter screen plate 9, wherein the water passes through the filter screen plate 9 and flows into the water storage tank 6 along the water outlet at the bottom of the dust removal box 1 for recycling, and the flue gas after spraying and reducing dust is discharged from the air outlet pipe 3 into the filter pipe 5, and is secondary purified and filtered by the filter component therein to remove the harmful gas therein, so as to meet the environmental emission standards.

[0029] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A flue gas dust collector for furfural production boiler, comprising a dust removal box (1), characterized in that: An air inlet pipe (2) and an air outlet pipe (3) are fixed to the two side walls of the dust removal box (1), a connecting ring (4) is sleeved on the side of the air outlet pipe (3) away from the dust removal box (1), a filter pipe (5) is threadedly connected to the inner side of the connecting ring (4) and sealed with the air outlet pipe (3), a filter assembly is arranged inside the filter pipe (5), a water storage tank (6) is fixed to the bottom end of the dust removal box (1), and a water outlet connected to the water storage tank (6) is provided at the bottom of the dust removal box (1). A water pump (7) is fixed at the bottom end of the water storage tank (6), a water pump (8) is fixed at the output end of the water pump (7) and passes through the outside of the water storage tank (6), one end of the water pump (8) away from the water pump (7) passes through the top of the dust removal box (1) and is fixed with a spray dust reduction mechanism, a filter screen plate (9) is inserted and inserted into the dust removal box (1), and a sealed box door (10) corresponding to the position of the filter screen plate (9) is hinged on the front of the dust removal box (1).

2. A furfural production boiler flue gas dust collector according to claim 1, characterized in that: An exhaust fan (11) is fixed inside the air inlet pipe (2) and the air outlet pipe (3); a smoke exhaust pipe (12) connected to the smoke exhaust port of the biomass boiler is fixed at one end of the air inlet pipe (2) away from the dust removal box (1); and the filter assembly comprises a particle filter cotton layer, an ultrafine fiber filter cotton layer and an activated carbon filter layer which are equidistantly distributed inside the filter pipe (5).

3. A furfural production boiler flue gas dust collector according to claim 1, characterized in that: A support frame (13) is fixed to the lower part of the inner wall of the dust removal box (1), the filter screen plate (9) is inserted and engaged with the top of the support frame plate (13), the top of the support frame plate (13) is symmetrically fixed with an inserting column (14), and the bottom of the filter screen plate (9) is symmetrically provided with an inserting slot (15) adapted to the inserting column (14).

4. A furfural production boiler flue gas dust collector according to claim 1, characterized in that: An annular groove (16) is provided on the inner wall of the connecting ring (4) on the side away from the filter tube (5), a limiting ring (17) adapted to the annular groove (16) is fixed on the outer wall of the air outlet pipe (3), an external thread is provided on the outer wall of the air outlet pipe (3), and an internal thread is provided on the inner wall of the connecting ring (4) on the side away from the air outlet pipe (3).

5. A furfural production boiler flue gas dust collector according to claim 1, characterized in that: An annular sealing groove (18) is provided at one end of the air outlet pipe (3) close to the filter pipe (5), and an annular sealing ring (19) adapted to the annular sealing groove (18) is fixed at one end of the filter pipe (5) close to the air outlet pipe (3).

6. A furfural production boiler flue gas dust collector according to claim 1, characterized in that: The spray dust reduction mechanism comprises an annular tube (20) located above the inside of the dust removal box (1) and a water injection pipe (21) fixed at equal distances on the inner wall of the annular tube (20); one end of the water injection pipe (21) away from the annular tube (20) is connected to a water pump (8); and spray heads (22) are fixed at equal distances at the bottom ends of the annular tube (20) and the water injection pipe (21).

7. A flue gas dust collector for furfural production boiler according to claim 1, characterized in that: A water inlet pipe (23) and a drain pipe (24) are respectively fixed to the two side walls of the water storage tank (6), and control valves are installed on the water inlet pipe (23) and the drain pipe (24). Support legs are fixed to the four corners of the bottom end of the dust removal box (1).

Images