A rotary vibration type cyclone preheater waste gas dust cleaning device

Abstract

The present application relates to cement production equipment field, specifically to a kind of rotary vibration type cyclone preheater waste gas dust cleaning device, including shell, dust collection device, filter dust roller;The circumferential side of the shell is provided with a gas inlet pipe for air inlet, the front end surface of the shell is provided with front swivel seat for support, the present application is collected by setting particle collection tank and dust collection device, large particle dust on filter screen is separated from small dust and collected, and the dust removal efficiency is higher, and the effect is better;The present application is set by protruding ring and pillow rail, when filter dust roller rotates, the protruding ring at its two ends makes filter dust roller move up and down, impact is generated between pillow rail in the process of moving up and down, so that filter dust roller is vibrated, dust is separated from filter screen by the vibration of filter screen, so that filter screen can carry out continuous dust removal work.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cement production equipment, in particular to a rotary vibration type cyclone preheater waste gas dust cleaning device. BACKGROUND

[0002] The new dry cement production technology was developed in the 1950s, and the new dry cement clinker production equipment with suspension preheating and pre-decomposition as the core accounts for 95% in developed countries such as Japan and Germany. The new dry cement production line refers to the cement produced by the new process of decomposition outside the kiln. Its production takes suspension preheater and kiln decomposition technology as the core, adopts new raw materials, fuel homogenization and energy-saving grinding technology and equipment, and uses computer distributed control throughout the line to realize automatic cement production process, high efficiency, high quality, low consumption and environmental protection.

[0003] Among them, after the suspension preheater preheats the material, the waste gas will contain a large amount of limestone dust and smoke dust generated by calcination. If it is directly discharged, it will cause serious air pollution. SUMMARY

[0004] Therefore, the present application is made in view of the above problems. The purpose of the present application is to set up a dust filtering drum, an impeller, a convex ring and a pillow rail, to drive the dust filtering drum to rotate by the flow of flue gas, to make the dust filtering drum move up and down through the convex ring at both ends, to make the pillow rail II on the dust filtering drum collide with the pillow rail I in the shell during the up and down movement, to make the filter screen vibrate, to make the dust separate from the filter screen through the vibration of the filter screen, to realize the continuous dust removal work of the filter screen, to solve the problem of dust and smoke pollution caused by the waste gas emission of the existing suspension preheater, and to realize the above-mentioned purposes through the following technical solutions:

[0005] A rotary vibrating cyclone preheater exhaust gas dust cleaning device includes a shell, a dust collection device, and a dust filter drum. An air inlet pipe is provided on the circumferential side of the shell. A front rotating seat for support is provided on the front end face of the shell, and an exhaust pipe for exhaust is provided on the other end face of the front rotating seat. A limiting bracket is provided at the connection between the front rotating seat and the exhaust pipe. A rear rotating seat corresponding to the front rotating seat is provided on the rear end face of the shell for support. Two symmetrically arranged rails are provided at both ends of the inner circumferential surface of the shell. Two symmetrically arranged extension plates are provided at the lower ends of the front and rear end faces of the shell, and the extension plates have a central hole. A particle collection box is also provided at the bottom of the circumferential surface of the shell, and a particle collection port is provided at the connection between the particle collection box and the interior of the shell. The dust collection device is located below the shell. The dust collection device consists of a dust hopper, a dust collection box, a limiting rod, and a spring. The dust hopper is located at... Above the dust collection box, the dust collection hopper is connected to the inside of the dust collection box. The dust collection hopper is responsible for collecting the dust that falls off, and the dust collection box is responsible for storing the dust collected by the dust collection hopper. Two limiting rods are fixedly installed at both ends of the dust collection box. The limiting rod is an L-shaped rod, with one end fixed to the dust collection box and the other end movably installed in the center hole of the extension plate. A spring is installed between the top of the limiting rod and the extension plate. The dust filter roller is rotatably and movablely installed on the front and rear rotating seats at both ends of the housing. The dust filter roller consists of a filter screen, end caps, raised rings, and an impeller. End caps are fixedly installed at both ends of the filter screen, and two corresponding rails are fixedly installed on the circumference of the two end caps, corresponding to two rails on the inner wall of the housing. Raised rings are fixedly installed on each end cap, with the raised rings at both ends located in the front and rear rotating seats at both ends of the housing, respectively. An impeller is rotatably installed inside the end cap.

[0006] Preferably, the limiting frame is fixed at the center of the front rotary seat outlet, and the center of the limiting frame is provided with a front limiting slot for limiting.

[0007] Preferably, the rear end face of the rear rotary seat is provided with another straight groove-shaped rear limiting slot for limiting.

[0008] Preferably, the first sleeper rail is made of steel or a material with high surface hardness; the second sleeper rail is made of the same material as the first sleeper rail.

[0009] Preferably, the raised ring is a ring structure, and symmetrical raised protrusions are provided on the circumference of the raised ring.

[0010] Preferably, the outer end of the impeller is provided with an extension shaft, and the extension shaft is limited and installed in the front limiting slot on the limiting frame.

[0011] Beneficial effects of this invention:

[0012] 1. By setting up a particle collection box and a dust collection device, large dust particles and fine dust particles on the filter screen are collected separately, resulting in higher dust removal efficiency and better effect;

[0013] 2. By setting up raised rings and sleeper rails, when the dust filter drum rotates, the raised rings at both ends cause the dust filter drum to move up and down. During the up and down movement, the sleeper rails collide, causing the dust filter drum to vibrate. The vibration of the filter screen causes the dust to separate from the filter screen, enabling the filter screen to perform continuous dust removal work.

[0014] 3. By installing an impeller at one end of the dust filter drum, the dust filter drum is driven to rotate by the flow of flue gas, so that the dust attached to the filter screen on the dust filter drum at the air inlet can be transferred and cleaned in time, realizing real-time continuous dust removal, which is lower in cost and does not require a special power unit. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a rotary vibration cyclone preheater exhaust gas dust cleaning device according to the present invention.

[0016] Figure 2 This is a partial structural schematic diagram of a rotary vibration cyclone preheater exhaust gas dust cleaning device according to the present invention.

[0017] Figure 3 This is an exploded schematic diagram of a portion of the structure of a rotary vibration cyclone preheater exhaust gas dust cleaning device according to the present invention.

[0018] Figure 4 This is a top view of a rotary vibration cyclone preheater exhaust gas dust cleaning device according to the present invention.

[0019] Figure 5 for Figure 4 Sectional view along line AA.

[0020] Figure 6 for Figure 4 Sectional view along the BB line.

[0021] Explanation of reference numerals in the attached figures:

[0022] 100. Housing; 110. Inlet pipe; 120. Front swivel; 130. Outlet pipe; 140. Limiting frame; 141. Front limiting slot; 150. Rear swivel; 151. Rear limiting slot; 160. Sleeper rail one; 170. Extension plate; 180. Particle collection box; 181. Particle collection port; 200. Dust collection device; 210. Dust hopper; 220. Dust collection box; 230. Limiting rod; 240. Spring; 300. Dust filter roller; 310. Filter screen; 320. End cover; 321. Sleeper rail two; 330. Raised ring; 331. Raised; 340. Impeller; 341. Extension shaft. Detailed Implementation

[0023] Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention can also be implemented in various different forms, and therefore the present invention is not limited to the embodiments described below. In addition, for the purpose of more clearly describing the present invention, parts not connected to the invention will be omitted from the drawings.

[0024] like Figure 1 , 2 As shown, a rotary vibrating cyclone preheater exhaust gas dust cleaning device includes: a shell 100, a dust collection device 200, and a dust filter drum 300.

[0025] like Figure 3 As shown, the housing 100 is a cylindrical body. An air intake pipe 110 for air intake is provided on the circumference of the housing 100. A front rotating seat 120 for support is provided on the front end face of the housing 100. An air outlet pipe 130 for exhaust is provided on the other end face of the front rotating seat 120. A limiting bracket 140 is provided at the connection between the front rotating seat 120 and the air outlet pipe 130. The limiting bracket 140 is a straight plate fixed to the center of the outlet of the front rotating seat 120. A front limiting slot 141 for limiting is provided at the center of the limiting bracket 140. A rear rotating seat 150 for support, corresponding to the front rotating seat 120, is provided on the rear end face of the rear rotating seat 150. A limiting slot is provided on the rear end face of the rear rotating seat 150. Another straight groove-shaped rear limiting slot 151 has two symmetrically arranged sleeper rails 160 at both ends of the inner circumferential surface of the housing 100. The sleeper rails 160 are made of steel or a material with high surface hardness. Two symmetrically arranged extension plates 170 are also provided at the lower ends of the front and rear end faces of the housing 100, and the extension plates 170 have a central hole. A particle collection box 180 is also provided at the bottom of the circumferential surface of the housing 100, and a particle collection port 181 is provided at the connection between the particle collection box 180 and the interior of the housing 100. Large particles of dust falling from the dust filter roller 300 can enter the interior of the particle collection box 180 through the particle collection port 181. The dust collection device 200 is located below the housing 100.

[0026] like Figures 3 to 6As shown, the dust collection device 200 has a Y-shaped shell structure. The dust collection device 200 mainly consists of a dust collection hopper 210, a dust collection box 220, a limiting rod 230, and a spring 240. The dust collection hopper 210 is located above the dust collection box 220, and the dust collection hopper 210 and the dust collection box 220 are internally connected. The dust collection hopper 210 is responsible for collecting the dust that falls off, and the dust collection box 220 is responsible for storing the dust collected by the dust collection hopper 210. The dust collection box 220 is fixed at both ends. Two limiting rods 230 are fixedly installed. Each limiting rod 230 is an L-shaped rod. One end is fixed to the dust collection box 220, while the other end is movably installed in the center hole of the extension plate 170. A spring 240 is installed between the top of the limiting rod 230 and the extension plate 170. Under the elastic force of the spring 240, the dust collection hopper 210 can move with the movement of the dust filter roller 300, ensuring that the dust collection hopper 210 can fit in close contact with the dust filter roller 300.

[0027] The dust filter roller 300 is rotatably and movablely mounted on the front rotary seat 120 and the rear rotary seat 150 at both ends of the housing 100. The dust filter roller 300 is composed of a filter screen 310, end caps 320, raised rings 330, and an impeller 340. End caps 320 are fixedly installed at both ends of the filter screen 310, and second sleeper rails 321 corresponding to two sleeper rails 160 on the inner wall of the housing 100 are fixedly installed on the circumference of the two end caps 320. The second sleeper rails 321 and the first sleeper rails 160 are made of the same material. Both ends of the end cap 320 are fixedly installed with a raised ring 330. The raised ring 330 is a ring structure, and symmetrical protrusions 331 are provided on the circumference of the raised ring 330. The raised rings 330 at both ends are located in the front rotating seat 120 and the rear rotating seat 150 at both ends of the housing 100, respectively. An impeller 340 is rotatably installed inside the end cap 320. An extension shaft 341 is provided at the outer end of the impeller 340, and the extension shaft 341 is limited and installed in the front limiting slot 141 on the limiting frame 140.

[0028] Working principle of this invention:

[0029] The flue gas discharged from the suspension preheater enters the interior of the housing 100 through the inlet pipe 110. When the flue gas passes through the filter screen 310 on the dust filter roller 300, the dust and soot particles in the flue gas will be attached to the filter screen 310. The cleaned flue gas is then discharged from the outlet pipe 130. During the process of the flue gas being discharged from the end cover 320 through the dust filter roller 300, the impeller 340 inside the end cover 320 will rotate under the action of the high-speed flow of the flue gas. The rotation of the impeller 340 will drive the entire dust filter roller 300 to rotate on the front rotary seat 120 and the rear rotary seat 150. Since the protruding rings 330 at both ends of the dust filter roller 300 are located in the front rotary seat 120 and the rear rotary seat 150 at both ends of the housing 100, the extension shaft 341 on the impeller 340 is located in the limit frame 140. Within the front limiting slot 141 on the upper part, under the pushing action of the protrusion 331 on the protruding ring 330 and the limiting action of the front limiting slot 141 on the limiting frame 140, the dust filter roller 300 can move up and down repeatedly while rotating. During the repeated movement, the second sleeper rail 321 and the first sleeper rail 160 continuously collide, causing the filter screen 310 to vibrate. The dust attached to the lower filter screen 310 will fall off under the action of vibration and then be collected by the dust collection device 200. During the rotation of the dust filter roller 300, since the dust collection hopper 210 is in contact with the dust filter roller 300, the large particles of dust on the dust collection hopper 210 will be scraped off by one side of the dust collection hopper 210. The scraped-off large particles of dust can enter the particle collection box 180 for collection through the particle collection port 181.

Claims

1. A rotary vibrating cyclone preheater exhaust gas dust cleaning device, comprising a shell (100), a dust collection device (200), and a dust filter drum (300); characterized in that: The housing (100) has an air intake pipe (110) on its circumferential side for air intake. A front swivel (120) for support is provided on the front end face of the housing (100). An exhaust pipe (130) for exhaust is provided on the other end face of the front swivel (120), and a limiting bracket (140) is provided at the connection between the front swivel (120) and the exhaust pipe (130). A rear swivel (150) for support, corresponding to the front swivel (120), is provided on the rear end face of the housing (100). Two sleeper rails (160) are symmetrically arranged at both ends of the inner circumferential surface of the housing (100). Two symmetrically arranged extension plates (170) are provided at the lower ends of the front and rear end faces of the housing (100), and the center of the extension plate (170) is... It has a central hole; the bottom of the circumferential surface of the housing (100) is also provided with a particle collection box (180), and a particle collection port (181) is provided at the connection between the particle collection box (180) and the interior of the housing (100); the dust collection device (200) is located below the housing (100); the dust collection device (200) is composed of a dust collection hopper (210), a dust collection box (220), a limiting rod (230), and a spring (240); the dust collection hopper (210) is located above the dust collection box (220), and the dust collection hopper (210) is connected to the interior of the dust collection box (220). The dust collection hopper (210) is responsible for collecting the dust that falls off, and the dust collection box (220) is responsible for storing the dust collected by the dust collection hopper (210); the dust collection hopper (210) has a central hole; the bottom of the circumferential surface of the housing (100) is also provided with a particle collection box (180), and a particle collection port (181) is provided at the connection between the particle collection box (180) and the interior of the dust collection box (220); the dust collection hopper (210) has a central hole; the bottom of the circumferential surface of the housing (100) is also provided with a particle collection box (180), and a particle collection port (181) is provided at the connection between the particle collection box (180) and the interior of the dust collection box (220). Two limiting rods (230) are fixedly installed at both ends of the dust collection box (220); the limiting rod (230) is an L-shaped rod, one end of which is fixed to the dust collection box (220), while the other end is movably installed in the center hole of the extension plate (170); a spring (240) is installed between the top of the limiting rod (230) and the extension plate (170); the dust filter roller (300) is rotatably and movablely installed on the front rotating seat (120) and the rear rotating seat (150) at both ends of the housing (100); the dust filter roller (300) is composed of a filter screen (310), an end cap (320), a raised ring (330), and an impeller (340); the end caps (320) are fixedly installed at both ends of the filter screen (310), and Furthermore, two sleeper rails (321) corresponding to two sleeper rails (160) on the inner wall of the housing (100) are fixedly installed on the circumference of the two end caps (320). Each end cap (320) is fixedly installed with a protruding ring (330), wherein the protruding rings (330) at both ends are located in the front rotating seat (120) and the rear rotating seat (150) at both ends of the housing (100), respectively. An impeller (340) is rotatably installed inside the end cap (320). The limiting frame (140) is fixed at the outlet center of the front rotating seat (120), and the center of the limiting frame (140) is provided with a front limiting slot (141) for limiting. The rear end face of the rear rotating seat (150) is provided with another straight groove-shaped rear limiting slot (151) for limiting.The raised ring (330) is an annular structure, and symmetrical raised protrusions (331) are provided on the circumference of the raised ring (330); the outer end of the impeller (340) is provided with an extension shaft (341), and the extension shaft (341) is limited and installed in the front limiting slot (141) on the limiting frame (140).

2. The rotary vibrating cyclone preheater exhaust gas dust cleaning device according to claim 1, characterized in that: The first sleeper rail (160) is made of steel or a material with high surface hardness; the second sleeper rail (321) is made of the same material as the first sleeper rail (160).

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