A lime kiln top flue dust removal device

Abstract

The utility model relates to kiln gas dust removal equipment field especially, relates to a lime kiln top flue gas dust removal equipment. Current lime kiln top flue gas dust removal equipment, mostly through cloth bag dust remover to dust removal contains dust kiln gas, in the production process, contains dust kiln gas in moisture too much, and in the low temperature environment, the dust in dust collecting box and the dust on cloth bag are easy to lump because of low temperature and damp, need to disassemble and clean when cleaning cloth bag, it is more complicated to operate, lead to the dust removal efficiency is lower. A kind of lime kiln top flue gas dust removal equipment, including base etc., the base is fixedly connected with dust collecting box, the dust collecting box bottom is fixedly connected with dust outlet pipe, the dust outlet pipe is communicated with the dust collecting box. It can be more convenient to clean cloth bag, improve dust removal efficiency, also maintain the temperature of contains dust kiln gas by heating strip, simultaneously by heater to the outside air heating, to prevent dust lumping phenomenon.

Description

Technical Field

[0001] This utility model relates to the field of kiln gas dust removal equipment, and in particular to a dust removal device for flue gas from the top of a lime kiln. Background Technology

[0002] In the ammonia-soda process for producing soda ash, after limestone is calcined in the lime kiln, 20% of excess kiln gas is generated. When the excess kiln gas overflows from the top of the kiln, it carries some dust, which pollutes the atmospheric environment. Therefore, it is necessary to remove dust from the kiln gas.

[0003] Most current dust removal equipment for flue gas at the top of lime kilns uses bag filters to remove dust from the kiln gas. During production, the kiln gas contains excessive moisture, and the dust in the dust collection box and on the filter bags is prone to clumping due to low temperature and humidity. Cleaning the filter bags requires disassembly and washing, which is cumbersome and results in low dust removal efficiency. Utility Model Content

[0004] In view of the shortcomings or defects of the prior art, this utility model provides a dust removal device for flue gas at the top of a lime kiln, which can more conveniently clean the filter bags, improve dust removal efficiency, maintain the temperature of the dust-laden kiln gas through heating strips, and heat the outside air through a heater, thereby preventing dust from agglomerating.

[0005] The technical solution of this utility model is as follows: a dust removal device for flue gas from the top of a lime kiln, comprising a base, a dust collection box fixedly connected to the base, a dust outlet pipe fixedly connected to the bottom of the dust collection box and communicating with the dust collection box, a suction pipe fixedly connected to the side wall of the dust collection box and communicating with the dust collection box, an installation plate fixedly connected inside the dust collection box, several cloth bags fixedly connected to the installation plate, four heating strips fixedly connected to the inner wall of the dust collection box, an air suction pipe fixedly connected to the dust collection box and communicating with the dust collection box, a diversion pipe fixedly connected inside the dust collection box, several jet pipes provided on the diversion pipe, the several jet pipes on the diversion pipe being located in several of the cloth bags respectively, an air blowing pipe fixedly connected to the dust collection box and communicating with the diversion pipe, a heater fixedly connected to the base, the air blowing pipe being fixedly connected to the heater, and a back-blowing mechanism provided on the base.

[0006] Furthermore, the backflush mechanism includes a servo motor, which is fixedly connected to the base. A blade is fixedly connected to the output shaft of the servo motor, and a bushing is fixedly connected to the output shaft. Four sliding pillars are slidably connected to the bushing, and springs connect the bushing to each of the four sliding pillars. A rotating cylinder is rotatably connected to the base, and the blade is located inside the rotating cylinder. The rotating cylinder has four fixing holes, and the ends of the four sliding pillars that are far apart from each other are respectively located in the four fixing holes on the rotating cylinder. A blade is fixedly connected to the base. A limiting post is connected to the rotating cylinder, which has two through holes arranged symmetrically. A mounting ring is fixedly connected to the base, and the rotating cylinder is located inside the mounting ring. A limiting groove is opened on the mounting ring, and the limiting post is located inside the limiting groove on the mounting ring. The mounting ring is fixedly connected to the suction pipe, which communicates with the rotating cylinder through the mounting ring. The mounting ring is fixedly connected to the blowing pipe, and an air outlet pipe is fixedly connected to the mounting ring, which communicates with the rotating cylinder through the mounting ring. An air inlet pipe is fixedly connected to the mounting ring.

[0007] The beneficial effects of this utility model are as follows: The servo motor drives the blades to draw the dust-laden kiln gas in the dust collection box through the filter bag and then discharge it from the outlet pipe. The heating strip heats the dust-laden kiln gas in the dust collection box. When the filter bag needs to be cleaned, the servo motor drives the rotating cylinder to connect with the blowing pipe and the inlet pipe, and also drives the blades to rotate in the opposite direction to draw outside air to blow away the dust attached to the filter bag. At the same time, the heater heats the air. In this way, the filter bag can be cleaned more conveniently, the dust removal efficiency can be improved, and the temperature of the dust-laden kiln gas is maintained by the heating strip. At the same time, the heater heats the outside air, thereby preventing the phenomenon of dust agglomeration. Attached Figure Description

[0008] Figure 1 A three-dimensional structural diagram of this utility model.

[0009] Figure 2 A partial three-dimensional structural diagram of this utility model.

[0010] Figure 3 This utility model Figure 2 A magnified three-dimensional structural diagram of A in the middle.

[0011] Figure 4 This utility model is shown in a partial cross-sectional three-dimensional structural diagram.

[0012] Figure 5 A three-dimensional structural diagram showing the disassembled rotating cylinder and mounting ring of this utility model.

[0013] Figure 6 A three-dimensional structural diagram showing the disassembled rotating cylinder, sliding column, and spring of this utility model.

[0014] Reference numerals: 1_Base, 2_Dust collection box, 3_Dust outlet pipe, 4_Dust suction pipe, 5_Mounting plate, 6_Cloth bag, 7_Heating strip, 8_Suction pipe, 9_Diverter pipe, 10_Blowing pipe, 11_Heater, 121_Servo motor, 122_Blade, 123_Shaft sleeve, 124_Sliding column, 125_Spring, 126_Rotating cylinder, 127_Limiting post, 128_Mounting ring, 129_Exhaust pipe, 130_Inlet pipe. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Example 1 A dust removal device for flue gas from the top of a lime kiln, such as Figures 1-6 As shown, the device includes a base 1, a dust collection box 2 fixedly connected to the base 1, a dust outlet pipe 3 fixedly connected to the bottom of the dust collection box 2 and communicating with the dust collection box 2, a suction pipe 4 fixedly connected to the side wall of the dust collection box 2 and communicating with the dust collection box 2, an installation plate 5 fixedly connected inside the dust collection box 2, several cloth bags 6 fixedly connected to the installation plate 5, four heating strips 7 fixedly connected to the inner wall of the dust collection box 2, and an air suction pipe fixedly connected to the dust collection box 2. 8. The suction pipe 8 is connected to the dust collection box 2. A diversion pipe 9 is fixedly connected inside the dust collection box 2. Several air jet pipes are provided on the diversion pipe 9. The several air jet pipes on the diversion pipe 9 are respectively located in several of the cloth bags 6. An air blowing pipe 10 is fixedly connected to the dust collection box 2. The air blowing pipe 10 is connected to the diversion pipe 9. A heater 11 is fixedly connected to the base 1. The air blowing pipe 10 is fixedly connected to the heater 11. A back-blowing mechanism is provided on the base 1.

[0017] The backflush mechanism includes a servo motor 121, which is fixedly connected to the base 1. A blade 122 is fixedly connected to the output shaft of the servo motor 121. A bushing 123 is fixedly connected to the output shaft of the servo motor 121. Four sliding pillars 124 are slidably connected to the bushing 123. Springs 125 are connected to the bushing 123 and the four sliding pillars 124 via hooks. A rotating cylinder 126 is rotatably connected to the base 1. The blade 122 is located inside the rotating cylinder 126. The rotating cylinder 126 has four fixing holes. The ends of the four sliding pillars 124 that are far apart from each other are respectively located in the four fixing holes on the rotating cylinder 126. A bushing 125 is fixedly connected to the rotating cylinder 126. Position post 127, the rotating cylinder 126 has two through holes, the two through holes are symmetrically arranged, the base 1 is fixedly connected to the mounting ring 128, the rotating cylinder 126 is located in the mounting ring 128, the mounting ring 128 has a limiting groove, the limiting post 127 is located in the limiting groove on the mounting ring 128, the mounting ring 128 is fixedly connected to the suction pipe 8, the suction pipe 8 communicates with the rotating cylinder 126 through the mounting ring 128, the mounting ring 128 is fixedly connected to the blowing pipe 10, the mounting ring 128 is fixedly connected to the air outlet pipe 129, the air outlet pipe 129 communicates with the rotating cylinder 126 through the mounting ring 128, the mounting ring 128 is fixedly connected to the air inlet pipe 130.

[0018] Initially, the limiting post 127 is located at one end of the upper limiting groove of the mounting ring 128. The two through holes on the rotating cylinder 126 are aligned with the suction pipe 8 and the exhaust pipe 129, respectively, so that the suction pipe 8 and the exhaust pipe 129 are connected. The operator introduces the dust-laden kiln gas into the dust collection box 2 through the dust suction pipe 4. Then, the heating strip 7 and the servo motor 121 will start. The heating strip 7 will heat the dust-laden kiln gas in the dust collection box 2. The rotation of the output shaft of the servo motor 121 will drive the blades 122 and the bushing 123 to rotate. The rotation of the bushing 123 will drive the four sliding pillars 124 and the four springs 125 to rotate. The rotating cylinder 126... The 6 will continuously compress the four sliding pillars 124, causing them to move closer to each other. The spring 125 will continuously compress and reset. The rotation of the blade 122 will draw the dust-laden kiln gas in the dust collection box 2 into the suction pipe 8. The dust will be filtered by the filter bag 6, and a dust layer will form on the outer surface of the filter bag 6. The purified gas will be drawn into the rotating cylinder 126 through the suction pipe 8 and then discharged through the exhaust pipe 129. When the filter bag 6 needs to be cleaned, the output shaft of the servo motor 121 will rotate in the reverse direction. The reverse rotation of the output shaft of the servo motor 121 will drive the blade 122 and the bushing 123 to rotate in the reverse direction. The reverse rotation of the bushing 123 will drive... When the four sliding pins 124 and four springs 125 rotate in opposite directions, the four sliding pins 124 will respectively engage with the four fixing holes on the rotating cylinder 126. The counter-rotation of the four sliding pins 124 will jointly drive the rotating cylinder 126 to rotate in the opposite direction. The counter-rotation of the rotating cylinder 126 will drive the limiting pin 127 to rotate in the opposite direction to the other end of the upper limit groove of the mounting ring 128. Then, the rotating cylinder 126 will continuously squeeze the four sliding pins 124 to move closer to each other. The springs 125 will continuously compress and reset. At this time, the two through holes on the rotating cylinder 126 will be aligned with the air blowing pipe 10 and the air inlet pipe 130, so that the air blowing pipe... 10 is connected to the air inlet pipe 130. At the same time, the blades 122 rotate in the opposite direction to draw outside air into the air blowing pipe 10 through the air inlet pipe 130. The heater 11 heats the gas. The heated gas is sprayed out from several jet pipes on the diversion pipe 9 to blow away the dust on the filter bag 6. The dust falls to the bottom of the dust collection box 2 due to its own gravity and is finally discharged through the dust outlet pipe 3. In this way, the filter bag 6 can be cleaned more conveniently, and the dust removal efficiency can be improved. The heating bar 7 maintains the temperature of the dust-laden kiln gas. At the same time, the heater 11 heats the outside air, thereby preventing the phenomenon of dust agglomeration.

[0019] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A dust removal device for flue gas from the top of a lime kiln, characterized in that: The system includes a base (1), on which a dust collection box (2) is fixedly connected. A dust outlet pipe (3) is fixedly connected to the bottom of the dust collection box (2), communicating with the dust collection box (2). A suction pipe (4) is fixedly connected to the side wall of the dust collection box (2), communicating with the dust collection box (2). A mounting plate (5) is fixedly connected inside the dust collection box (2), and several cloth bags (6) are fixedly connected to the mounting plate (5). Four... A heating strip (7), a suction pipe (8) is fixedly connected to the dust collection box (2), the suction pipe (8) is connected to the dust collection box (2), a diversion pipe (9) is fixedly connected inside the dust collection box (2), a blowing pipe (10) is fixedly connected to the dust collection box (2), the blowing pipe (10) is connected to the diversion pipe (9), a heater (11) is fixedly connected to the base (1), the blowing pipe (10) is fixedly connected to the heater (11), and a back-blowing mechanism is provided on the base (1).

2. The dust removal equipment for flue gas at the top of a lime kiln as described in claim 1, characterized in that: The diversion pipe (9) is provided with a plurality of jet pipes, and the plurality of jet pipes on the diversion pipe (9) are respectively located in a plurality of the cloth bags (6).

3. The dust removal equipment for flue gas from the top of a lime kiln as described in claim 1, characterized in that: The backflush mechanism includes a servo motor (121), which is fixedly connected to the base (1). A blade (122) is fixedly connected to the output shaft of the servo motor (121), and a bushing (123) is fixedly connected to the output shaft of the servo motor (121). Four sliding columns (124) are slidably connected to the bushing (123), and springs (125) are connected between the bushing (123) and the four sliding columns (124). A rotating cylinder (126) is rotatably connected to the base (1), and the blade (122) is located inside the rotating cylinder (126). A blade (122) is fixedly connected to the rotating cylinder (126). A limiting post (127) is provided. An installation ring (128) is fixedly connected to the base (1). The rotating cylinder (126) is located inside the installation ring (128). The installation ring (128) is fixedly connected to the suction pipe (8). The suction pipe (8) is connected to the rotating cylinder (126) through the installation ring (128). The installation ring (128) is fixedly connected to the blowing pipe (10). An air outlet pipe (129) is fixedly connected to the installation ring (128). The air outlet pipe (129) is connected to the rotating cylinder (126) through the installation ring (128). An air inlet pipe (130) is fixedly connected to the installation ring (128).

4. The dust removal equipment for flue gas at the top of a lime kiln as described in claim 3, characterized in that: The rotating cylinder (126) is provided with four fixing holes, and the ends of the four sliding pins (124) that are far apart from each other are respectively located in the four fixing holes on the rotating cylinder (126).

5. The dust removal equipment for flue gas at the top of a lime kiln as described in claim 3, characterized in that: The rotating cylinder (126) has two through holes, which are arranged symmetrically.

6. The dust removal equipment for flue gas at the top of a lime kiln as described in claim 3, characterized in that: The mounting ring (128) has a limiting groove, and the limiting post (127) is located in the limiting groove on the mounting ring (128).

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