CN214052103U

CN214052103U - Multifunctional cathode insulation can device for electric dust collector

Info

Publication number: CN214052103U
Application number: CN202022776228.3U
Authority: CN
Inventors: 朱广忠
Original assignee: Zhejiang Jiahuan Engineering Technology Co ltd
Current assignee: Zhejiang Jiahuan Engineering Technology Co ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-08-27
Anticipated expiration: 2030-11-26

Abstract

The utility model discloses a be used for multi-functional negative pole insulation can device of electrostatic precipitator belongs to the electrostatic precipitator field, and this device is in the same place insulation can and the ingenious combination of body inspection door, and it is little to have solved conventional insulation can inspection door, and the space is little, is difficult for the problem of maintenance change inner part. Comprises a heat preservation box, an electric heater, an inner door, an outer door and a cathode vibration and sealing transmission device. The inside of the welded shell of the heat insulation box contains heat insulation cotton; the inner door and the outer door cover contain heat preservation cotton; the universal joint realizes angle transmission power connector between the pivot, has compensated the angle error, and insulation board sealing device installs on shells inner wall, separates the flue gas in the electric field, prevents inside the flue gas entering insulation can, destroys the insulating porcelain pivot. The sealing device is welded on the outer wall of the heat insulation box for sealing and welding, and the contact position of the transmission shaft and the heat insulation box is sealed to prevent cold air from entering the heat insulation box.

Description

Multifunctional cathode insulation can device for electric dust collector

Technical Field

The utility model belongs to the electrostatic precipitator field, concretely relates to be used for multi-functional electrostatic precipitator negative pole insulation can device.

Background

The electric dust collector is a purification device which separates dust in dust-containing gas from gas by using the action of an electric field, and electrons and anions generated after the gas is ionized are adsorbed on the dust passing through the electric field in the working process, so that the dust is charged. The charged dust moves to the electrode with opposite polarity under the action of the electric field and is deposited on the electrode (anode plate and cathode wire), so as to achieve the purpose of separating dust from gas. When the dust deposited on the electrode reaches a certain thickness, the dust falls into the lower dust hopper by means of the rapping mechanism, and the purified gas is discharged through the equipment, so that the purpose of removing the dust in the flue gas is achieved, the amount of the smoke discharged into the atmosphere can be greatly reduced, and the air quality is improved.

In the operation of the electric dust collector, a cathode rapping shaft in a cathode system is electrified with high voltage and negative electricity, parts such as an anode and a shell are not electrified, and the two parts are in mutual contact to discharge electricity for equipment and bring hidden danger to personnel safety, so that the cathode system is insulated and sealed through a cathode insulation can. A cathode rapping transmission device in the cathode system is provided with a high-voltage insulating ceramic rotating shaft, and a round hole for the high-voltage insulating ceramic rotating shaft to pass through is formed in the corresponding position of the side wall of the shell. If the dust-containing gas enters the cathode insulation can and is accumulated on the insulating ceramic rotating shaft, the dust can be accumulated on the insulating ceramic rotating shaft as time is longer and longer, the insulating distance of the ceramic rotating shaft is reduced when the dust reaches a certain thickness, and the ceramic rotating shaft generates arc discharge. At low temperatures, the porcelain shaft may be damaged and unusable.

The electric dust collector is used in many occasions, and the electric dust collector has different functions according to different equipment use processes. The electric dust collector has the function of collecting dust in furnaces and kilns in metallurgy, building materials and power industries. In the acid production industry, the use of an electric dust collector is an indispensable process, and the electric dust collector provides guarantee for the next process.

In order to ensure the normal work of the electric dust collector, the internal and external parts are connected by a ceramic rotating shaft, and a cathode transmission heat insulation box is arranged between the cathode transmission motor and the vibrating shaft to ensure the normal work of the insulating ceramic rotating shaft under constant temperature.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects that the existing inspection door is small, has small space and is not easy to overhaul and replace the inner part. The technology provides a device for a multifunctional cathode insulation can of an electric dust collector, the device perfectly combines a cathode transmission insulation can with a body inspection door, the overall dimension of the insulation can is larger than that of a conventional insulation can, and the biggest benefit is that the maintenance and the replacement of inner parts are convenient.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a multifunctional cathode transmission heat preservation box device for an electric dust collector is characterized by comprising a heat preservation box, an electric heater, an inner door, an outer door and a cathode vibration and vibration sealing transmission device;

the heat insulation box is welded on the outer wall of the shell of the electric dust collector; the hanging plate for electric heating is hung on the top plate in the heat insulation box; the inner door is welded in the heat insulation box and is positioned on the outer wall of the shell of the electric dust collector; the outer door is arranged on the shell outside the heat preservation box;

the cathode vibration and sealing transmission device comprises a transmission sleeve, a sealing device, a universal joint, an insulating ceramic rotating shaft and an insulating plate sealing device; the front end and the rear end of the insulating ceramic rotating shaft are respectively provided with a universal joint, and each universal joint is connected with a transmission sleeve; the transmission sleeve at the front end is connected with the rapping shaft, the transmission sleeve at the rear end is connected with the transmission shaft, and the rapping shaft and the outer wall of the electric dust remover shell are sealed by an insulation plate sealing device; the transmission shaft and the heat preservation box shell are sealed through a sealing device.

In a preferred scheme, the shell of the heat preservation box comprises an inner layer steel plate and an outer layer steel plate, and heat preservation cotton is embedded between the two layers of steel plates.

In a preferred scheme, the electric heater is formed by combining an external stainless steel pipe and an internal resistance wire.

In a preferred scheme, the inner door is welded on the outer wall of the shell and is positioned inside the heat insulation box, and a 50mm thick heat insulation layer is arranged in the inner door cover, so that the temperature at the door is not too low.

In a preferred scheme, the outer door is welded on the outer wall of the heat insulation box and located outside the heat insulation box, and a heat insulation layer with the thickness of 50mm is arranged in the door cover of the outer door, so that a heat insulation measure is provided for the heat insulation box, and the ceramic rotating shaft is better protected.

In a preferred scheme, the sealing device comprises an end cover, a sealing cylinder, a bearing, a large gland, a small gland and a bolt; the bearing is installed on the transmission shaft, the sealing rings are installed on two sides of the transmission shaft, the bearing is fixed by the sealing barrel and the transmission shaft, the sealing barrel is sealed by the large gland and the small gland, the end flange of the sealing barrel is fastened with the large gland through bolts, the transmission shaft of the sealing device is inserted into the heat insulation box after being perforated from the heat insulation box, and the end cover is welded with the outer wall of the heat insulation box in a sealing mode. The sealing device is welded on the outer wall of the heat insulation box for sealing and welding, and the contact position of the transmission shaft and the heat insulation box is sealed to prevent cold air from entering the heat insulation box.

In a preferred scheme, the insulation plate sealing device comprises an insulation sleeve, an insulation plate and a flange seat, wherein the flange seat penetrates through the rapping shaft and is welded with the inner wall of the shell, the insulation plate is fixed with the flange seat through a bolt, and the insulation sleeve penetrates through the rapping shaft and an insulation plate hole and is fixed with the rapping shaft through a set screw. The insulation board sealing device isolates the flue gas in the electric field from the inside of the insulation can, and the normal work of the insulating ceramic rotating shaft is guaranteed.

And two ends of the insulating ceramic rotating shaft are connected with the universal joint through hexagon socket head cap bolts. The inner part of one end of the transmission sleeve is connected with the transmission shaft or the rapping shaft by a key, and the other end of the transmission sleeve is connected with the universal joint by an inner hexagon bolt.

Compared with the prior art, the utility model discloses the beneficial effect who has includes:

(1) the inside of the welded shell of the heat insulation box contains heat insulation cotton; the inner door and the outer door cover contain heat preservation cotton; the opening of the inspection door is as large as 500x800 mm, the internal space of the multifunctional cathode transmission heat preservation box is large, and the access of maintainers to the electric field and the replacement of ceramic shafts, electric heaters, universal joints and the like are very convenient.

(2) The universal joint of the utility model realizes the angle transmission power connecting piece between the rotating shafts, compensates the angle error, and has two ends connected by the hexagon socket head cap screw; the insulating ceramic rotating shaft has the functions of transmission power and insulation.

(3) The insulation board sealing device is installed on the inner wall of the shell, smoke in an electric field is isolated, and the smoke is prevented from entering the insulation can to damage the insulating ceramic rotating shaft.

(4) The sealing device is welded on the outer wall of the heat insulation box for sealing and welding, and the contact position of the transmission shaft and the heat insulation box is sealed to prevent cold air from entering the heat insulation box.

Drawings

FIG. 1 is a schematic structural view of the multifunctional cathode transmission heat preservation box device of the present invention;

fig. 2 is a schematic structural view of the sealing device.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

As shown in fig. 1 and 2, the multifunctional cathode transmission heat preservation box of the embodiment comprises a heat preservation box 1, an electric heater 2, an inner door 3, an outer door 4, a transmission sleeve 5, a sealing device 6, a universal joint 7, an insulating ceramic rotating shaft 8 and an insulating plate sealing device 9.

In this embodiment, the inside and outside of the thermal insulation box 1 are welded by 5 plates, the thickness of the inner and outer steel plates is 5mm, the thermal insulation cotton with the thickness of 50mm is embedded between the inner and outer layers, and the length, width and height are 1800 × 950 × 750 mm.

In this embodiment, the electric heater 2 is a stainless steel tube heater, the outside is a stainless steel tube with a diameter of 16mm, the inside is a resistance wire, the terminal connection pile is provided with a ceramic joint, and the outer end is provided with a terminal box.

In this embodiment, 3 door closure trompils sizes of interior door are 500 × 800mm, and the door closure adopts 5mm thick steel plate, and the inside embedding has the heat preservation cotton that thickness is 50mm, and the door closure adopts high temperature resistant silicon rubber sealing strip with the door frame contact department, and outside handle is the form of opening soon.

In this embodiment, the size of the opening of the door cover of the outer door 4 is 500 × 800mm, the door cover is made of a steel plate with the thickness of 5mm, heat-preservation cotton with the thickness of 50mm is embedded in the door cover, a high-temperature-resistant silicon rubber sealing strip is arranged at the contact position of the door cover and the door frame, and the outer handle is in a quick-opening mode.

The utility model discloses a multi-functional transmission insulation can inspection door trompil reaches 500x800(mm), compares with the circular shape of lateral part

For a 600x380(mm) inspection door of a square door at the top, the inspection door has larger opening, larger space for overhauling and replacing parts and more convenient operation.

In this embodiment, the transmission sleeve 5 is made of round steel with an outer diameter of phi 100mm and a length of 80mm by turning, and the round steel is turned into a round steel with an inner diameter of phi 60mm, and the inside of the round steel is provided with a key groove. 4M 10 internal thread holes are arranged on a central line with one end diameter of phi 80mm, the horizontal 2-hole distance is 62.5mm, and the upper and lower 2-hole distances are 50 mm.

As shown in fig. 2, in the present embodiment, the sealing device 6 is composed of an end cover 61, a sealing cylinder 62, a bearing 63, a large gland 64, a small gland 65, a bolt, a stepped transmission shaft, and the like. End cap 61 is of outside diameter

Is made of a steel plate with the thickness of 14mm by turning

8 are uniformly distributed on the central line

Is provided with a hole at the middle part

The trapezoidal hole is embedded with 60 felt rings. The sealing cylinder 62 is composed of two end diameters

A flange with a thickness of 14mm and a diameter of the middle

The steel pipes are welded. The large gland 64 is a steel casting made of HT150 with an outer diameter

Inner bore

In that

8 are uniformly distributed on the central line

The hole of (2). The small gland 65 has an outer diameter

Is made of 25mm thick steel plate by turning and has an inner hole

Diameter of stepped drive shaft

Is formed by finish machining of round steel with the length of 380mm and the middle part

The length is 46mm, and the rest are the diameters

The positions 5mm away from the end parts of the two ends are provided with waist-shaped holes 56 x 18 mm. The bearings are respectively arranged on

And two sides for supporting the transmission shaft. The bearing is arranged on the transmission shaft, the sealing rings are arranged on two sides of the transmission shaft, and the bearing is fixed by a large gland and a small gland; the sealing cylinder is arranged on the large gland to play a sealing role, and the upper part of the cylinder is provided with the oil injection cup; the end cover is fastened with the large gland through a bolt, the small gland is fastened with the large gland through a bolt, the sealing device transmission shaft is inserted into an electric field from the opening of the heat insulation box, and the end cover is welded with the outer wall of the heat insulation box in a sealing mode.

In the present embodiment, the insulating plate sealing device 9 is composed of an insulating plate, an angle steel flange and an insulating sleeve. The insulating plate is a polytetrafluoroethylene plate, the outer diameter phi is 500mm, the inner diameter phi is 150mm, the thickness is 10mm, the angle steel flange is formed by bending 50 x 5mm angle steel, the outer diameter phi is 500mm, and 24 holes with the diameter phi 12 are uniformly distributed at the phi 450mm position of the insulating plate and the angle steel flange. The insulating sleeve is a polytetrafluoroethylene tube with an outer diameter phi 148mm, an inner diameter phi 62mm and a length of 150 mm. The insulating plate is fixed with the angle steel flange by bolts, and the insulating sleeve is fixed with the shaft by a set screw.

In a preferred embodiment, the universal joint 7 is a finished part, and a universal joint for the Beijing Jeep BJ212 is adopted. The mounting of the shaft does not guarantee the perfect straightness and there is always a coaxiality deviation. The universal joint 7 is a connecting part which just realizes the angle transmission power between the rotating shafts and compensates the angle error.

In a preferred embodiment, the insulating ceramic rotating shaft 8 is a high-temperature and high-pressure resistant ceramic product, and two materials can be selected, namely 95 ceramic, 50 ceramic and 95 ceramic which are more resistant to high temperature. The electric dust collector applies high voltage to an electric field to ionize and charge dust in smoke to collect the dust, and finally purifies air. The device body is positively charged and the cathode system is negatively charged. Because the high voltage of 72-100 kv is in the equipment, the value is more harmful to human body, so that the electric field is better insulated from the outside by using a high temperature resistant, driving and insulating device, and the normal work of the equipment and the safety of maintainers are ensured.

The utility model discloses multi-functional negative pole transmission insulation can installation does: all parts are produced in a manufacturing plant and assembled on site. When the cathode vibration shaft in the electric dust collector is installed, the insulation plate device penetrates through the vibration shaft and is fixed on the inner wall of the shell, the angle steel flange is welded with the shell on site, the insulation plate is fixed with the flange, and the insulation sleeve is fixed with the shaft. The welding inner door, the welding heat preservation box, the welding outer door, the transmission sleeve, the universal joint, the insulating ceramic rotating shaft, the electric heater, the transmission shaft and the sealing device.

In the working process, an external motor is started, the motor drives an electroceramic rotating shaft to rotate through a transmission shaft, and the electroceramic rotating shaft drives a cathode rapping shaft to rotate, so that a rapping hammer mounted on the rapping shaft is driven to rotate, and the cathode rapping dust removal is realized. The negative pole shakes and beats axle and passes through insulation board sealing device and dust remover outer wall connection, and insulation board sealing device becomes the seal by the intercommunication with the inside inner chamber with the dust remover of insulation can, can effectually prevent that the dust from getting into in the insulation can, compare with prior art, can increase life, and dustproof effect is better, guarantees the dust remover normal operating. The utility model discloses the device is in the same place insulation can and the ingenious combination of body inspection door, and it is little to have solved conventional insulation can inspection door, and the space is little, and the problem of inner part is changed in difficult maintenance is a more humanized design.

Claims

1. A multifunctional cathode heat preservation box device for an electric dust collector is characterized by comprising a heat preservation box (1), an electric heater (2), an inner door (3), an outer door (4) and a cathode vibration and sealing transmission device;

the heat insulation box (1) is welded on the outer wall of the shell of the electric dust collector; the electric heater (2) is hung on the inner top plate of the heat preservation box (1) by a hanging plate; the inner door (3) is welded in the heat insulation box and is positioned on the outer wall of the shell of the electric dust collector; the outer door (4) is arranged on the shell outside the heat preservation box;

the cathode vibration and sealing transmission device comprises a transmission sleeve (5), a sealing device (6), a universal joint (7), an insulating ceramic rotating shaft (8) and an insulating plate sealing device (9); the front end and the rear end of the insulating porcelain rotating shaft (8) are respectively provided with a universal joint (7), and each universal joint (7) is connected with a transmission sleeve (5); the transmission sleeve at the front end is connected with a rapping shaft in the electric field, the transmission sleeve at the rear end is connected with a transmission shaft in a sealing device (6), and the rapping shaft and the outer wall of the electric dust collector shell are sealed by an insulating plate sealing device (9); the transmission shaft and the shell of the heat preservation box (1) are sealed through a sealing device (6).

2. The multifunctional cathode insulation box device for the electric dust collector as claimed in claim 1, wherein the shell of the insulation box (1) comprises an inner layer steel plate and an outer layer steel plate, and insulation cotton is embedded between the two layers of steel plates.

3. The multifunctional cathode heat preservation box device for the electric dust collector as claimed in claim 1, wherein the electric heater (2) is formed by combining external stainless steel tubes and internal resistance wires.

4. The multifunctional cathode insulation box device for the electric dust collector as claimed in claim 1, wherein the inner door (3) is welded on the outer wall of the shell and is positioned inside the insulation box (1), and a 50mm thick insulation layer is arranged in the door cover of the inner door (3).

5. The multifunctional cathode insulation box device for the electric dust collector as claimed in claim 1, wherein the outer door (4) is welded on the outer wall of the insulation box and is positioned outside the insulation box (1), and the door cover of the outer door (4) is provided with a 50 mm-thick insulation layer.

6. The multifunctional cathode incubator device for the electric dust collector as recited in claim 1, wherein the sealing device (6) comprises an end cover (61), a sealing cylinder (62), a bearing (63), a large gland (64), and a small gland (65); the bearing is arranged on the transmission shaft, the sealing rings are arranged on two sides of the bearing, the bearing is fixed by the sealing cylinder and the transmission shaft, and the large gland and the small gland seal the sealing cylinder; the end flange of the sealing cylinder is fastened with the large gland through a bolt, the small gland is fastened with the large gland through a bolt, the transmission shaft of the sealing device is inserted into the heat insulation box from the opened hole of the heat insulation box, and the end cover is welded with the outer wall of the heat insulation box in a sealing mode.

7. The multifunctional cathode insulation box device for the electric dust collector as claimed in claim 1, wherein the insulation plate sealing device (9) comprises an insulation sleeve, an insulation plate and a flange seat, the flange seat penetrates through the rapping shaft to be welded with the inner wall of the shell, the insulation plate is fixed with the flange seat through a bolt, and the insulation sleeve penetrates through the rapping shaft and an insulation plate hole to be fixed with the rapping shaft through a set screw.

8. The multifunctional cathode insulation box device for the electric dust collector as claimed in claim 1, wherein the two ends of the insulating ceramic rotating shaft (8) are connected with a universal joint by hexagon socket head cap bolts.

9. The multifunctional cathode incubator device for the electric dust collector as claimed in claim 1, wherein one end of the transmission sleeve is internally connected with the transmission shaft or the rapping shaft by a key, and the other end of the transmission sleeve is connected with the universal joint by a hexagon socket head cap screw.