CN212732613U

CN212732613U - Explosion-proof device for centrifuge housing

Info

Publication number: CN212732613U
Application number: CN201922330205.7U
Authority: CN
Inventors: 梁晓楠; 姚亚蕊
Original assignee: Xi'an Water And Animal Husbandry Environment Technology Co ltd
Current assignee: Xi'an Water And Animal Husbandry Environment Technology Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2021-03-19
Anticipated expiration: 2029-12-23

Abstract

The utility model belongs to the technical field of explosion protection of centrifuges, and discloses an explosion protection device for a housing of a centrifuger, which is provided with a bottom frame, wherein the upper end of the bottom frame is fixedly provided with a motor, the output end of the motor is in toothed connection with a pneumatic device and a tetrafluoro device, and the pneumatic device and the tetrafluoro device are externally buckled to form a main housing; the rear end of the pneumatic device is provided with a feeding pipe which is communicated with the mud inlet pipe and the medicine inlet pipe; and a slag discharge hopper is arranged at the lower end of the tetrafluoro device, and an exhaust port is embedded at the top of the main housing. The separation liquid is discharged from the large end of the rotary drum, the solid is discharged from the small end, the separation liquid and the solid are thrown to the housing under the action of centrifugal force, and the structure needs to be filled with nitrogen in order to prevent air from entering the two ends of the housing. When the centrifugal machine operates at a high speed, the machine can vibrate, and for preventing the semi-circular plate of the housing from colliding with the outer wall of the rotary drum to generate sparks in abnormal operation, the tetrafluoro plate is required to be embedded on the semi-circular plate of the housing, so that the sparks can not be generated even if collision occurs, and accidental accidents can be prevented.

Description

Explosion-proof device for centrifuge housing

Technical Field

The utility model belongs to the technical field of the explosion-proof of centrifuge, especially, relate to an explosion-proof equipment of centrifuge housing.

Background

Currently, the current state of the art commonly used in the industry is such that: when the centrifugal machine is used for separating materials, the materials are easy to explode or generate danger when meeting friction or sparks, and explosion-proof measures need to be taken for the centrifugal machine housing in addition to explosion-proof for electrical equipment. The materials are conveyed to a centrifuge feeding pipe through a pipeline, enter a spiral cavity and enter a rotary drum at a centrifuge spiral discharge port to realize solid-liquid separation. At present, centrifugal machine manufacturers in the industry are cautious to the industry of separating combustible materials or combustible gas generated by separation, few enterprises are involved, and customers are sensitive to the industries. One current method is to place the centrifuge in an evacuated environment.

In summary, the problems of the prior art are as follows: when the centrifugal machine is used for separating materials which are easy to generate inflammable and explosive gases, a lot of inflammable and explosive gases are generated to meet friction or sparks, and explosion or danger is easy to cause. The centrifuge is placed in a vacuum-pumping environment in the prior art, so that the risk of explosion caused by contact of flammable and explosive gas and air can be effectively avoided, but the cost is high, and the maintenance cost is high. But can not overcome the problem that the shell and the rotary drum are rubbed to generate sparks due to abnormal vibration or unexpected situations of the centrifugal machine.

Disclosure of Invention

Problem to prior art existence, the utility model provides a centrifuge housing explosion-proof equipment.

The utility model discloses a realize like this, set up one set of pneumatic means respectively at centrifuge housing both ends for air in isolated outside air and the housing prevents that inside inflammable gas from leaking and the air contact, in case there is mars to produce explosion danger, prevents inside the air admission housing simultaneously. For preventing in the housing centrifuge abnormal vibration or unexpected condition take place the housing and rub with the rotary drum and produce the spark, to installing the tetrafluoro structure in the housing on the semicircle template, even this structure takes place to rub because unexpected condition takes place with the rotary drum and also can not produce the spark, can effectively protect the rotary drum, only takes place self wearing and tearing, and later stage replacement cost is lower, and the security is fabulous simultaneously.

The explosion-proof device for the housing of the centrifugal machine is provided with a bottom frame, a motor is fixedly mounted at the upper end of the bottom frame, the output end of the motor is in toothed connection with a pneumatic device and a tetrafluoro device, and a main housing is mounted outside the pneumatic device and the tetrafluoro device in a buckling mode;

the rear end of the pneumatic device is provided with a feeding pipe which is communicated with a mud inlet pipe and a medicine inlet pipe; and a slag discharge hopper is arranged at the lower end of the tetrafluoro device, and an exhaust port is embedded at the top of the main housing.

Furthermore, a rotary drum is further installed inside the main housing, and an even bolt is arranged on the outer side of the rotary drum.

Furthermore, a cement foundation is poured at the lower end of the bottom frame.

Further, a shock absorber is installed at the lower end of the main housing, a clear liquid hopper is arranged at the bottom of the main housing, and a clear liquid outlet is installed at the bottom of the clear liquid hopper.

Further, install on the pneumatic means and fill the nitrogen gas device, fill the upper end of nitrogen gas device and install and fill the nitrogen gas mouth, the lower extreme that fills the nitrogen gas mouth is provided with the tetrafluoro plate, the gland is installed in the lock on the tetrafluoro plate, be provided with O type circle between gland and the nitrogen gas mouth.

Further, the tetrafluoro device is provided with the semicircle board, the internally mounted of semicircle board has the tetrafluoro board, the flat bullet pad of filling up is installed to the lower extreme of tetrafluoro board, the upper end lock of semicircle board is installed and is assisted the housing.

In summary, the advantages and positive effects of the invention are: the separated liquid is discharged from the big end of the rotary drum, the solid is discharged from the small end of the rotary drum, the separated liquid and the solid are thrown to the housing under the action of centrifugal force, and the structure needs to be filled with nitrogen (inert gas, and the cost is low) in order to prevent air from entering the two ends of the housing. When the centrifugal machine operates at a high speed, the machine can vibrate, and for preventing the semi-circular plate of the housing from colliding with the outer wall of the rotary drum to generate sparks in abnormal operation, the tetrafluoro plate is required to be embedded on the semi-circular plate of the housing, so that the sparks can not be generated even if collision occurs, and accidental accidents can be prevented.

The pair before and after modification is shown in the following table:

drawings

Fig. 1 is a schematic structural diagram of an explosion-proof device for a centrifuge housing provided by an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a pneumatic device according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a tetrafluoro device provided in an embodiment of the present invention.

In the figure: 1. a mud inlet pipe; 2. a medicine inlet pipe; 3. a shock absorber; 4. a clear liquid hopper; 5. a slag discharge hopper; 6. a cement foundation; 7. a chassis; 8. a motor; 9. a main housing; 10. an exhaust port; 11. a bolt; 12. a drum; 13. a feed pipe; 14. a clear liquid outlet; 15. a pneumatic device; 15-1, filling nitrogen gas; 15-2, a nitrogen charging port; 15-3, O-shaped ring; 15-4, tetrafluoro plate; 15-5, a gland; 16. a tetrafluoro device; 16-1, an auxiliary housing; 16-2, a semicircular plate; 16-3, flat cushion elastic cushion.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.

Aiming at the problems in the prior art, the invention provides an explosion-proof device for a centrifuge housing, which is described in detail below with reference to fig. 1 to 3.

A feeding pipe 13 is arranged at the rear end of the pneumatic device 15, and the feeding pipe 13 is communicated with the mud inlet pipe 1 and the medicine inlet pipe 2; the lower end of the tetrafluoro device 16 is provided with a slag discharge hopper, and the top of the main housing 9 is embedded with an exhaust port 10.

The tetrafluoro device 16 consists of a semicircular plate 16-2, a tetrafluoro plate 15-4 and a fastener. The upper part of the semicircular plate 16-2 is connected to the main housing 9 through welding, and the lower part is provided with a semicircular circular hole to be connected with a circular hole on the tetrafluoro plate 15-4 through a bolt 11 and a nut. A certain gap is reserved between the tetrafluoro plate 15-4 and the rotary drum 12, and the tetrafluoro plate 15-4 is embedded on the gap, so that the collision surface is also positioned on the tetrafluoro plate 15-4 even if the equipment abnormally operates.

The pneumatic device 15 consists of a nitrogen filling device 15-1, an O-shaped ring 15-3, a gland 15-5, a tetrafluoro plate 15-4, a nitrogen filling port 15-2 and a fastener. The shock absorber 3 is installed to the lower extreme of main housing 9, the bottom of main housing 9 is provided with clear liquid fill 4, clear liquid export 14 is installed to the bottom of clear liquid fill 4. The nitrogen filling device 15-1 is fixed on the end face of the auxiliary housing 16-1 through a bolt hole on the end face. The lower end of the tetrafluoro plate 15-4 is provided with a flat cushion elastic pad 16-3, and the upper end of the semicircular plate 16-2 is buckled with an auxiliary housing 16-1.

The O-shaped rings 15-3 are arranged between the section of the auxiliary housing 16-1 and the nitrogen charging device 15-1 and between the nitrogen charging device 15-1 and the gland 15-5, so that gas leakage through a contact surface is prevented.

The tetrafluoro plates 15-4 are arranged on the inner end surface of the nitrogen filling device 15-1 close to the end surface to prevent the nitrogen filling device 15-1 from contacting the rotary drum 12, and the tetrafluoro plates 15-4 are arranged on the gland 15-5 to prevent the gland 15-5 from contacting the rotary drum 12 to play a role in protection.

The gland 15-5 fixes the nitrogen charging device 15-1, and a channel is formed between the nitrogen charging device 15-1 and the cover plate to facilitate gas flow.

The nitrogen charging port 15-2 is installed on the nitrogen charging device 15-1, and nitrogen is conveyed into the nitrogen charging device 15-1 through threaded connection.

Nitrogen enters the nitrogen charging device 15-1 through the nitrogen charging port 15-2 to form positive pressure between the rotary drum 12 and the pneumatic device 15, so that air is prevented from being conveyed into the main casing 9 by atmospheric pressure. The two devices can effectively prevent the materials separated by the centrifuge from being rubbed or easily exploded or dangerous due to sparks.

The working principle is as follows: before the centrifugal machine is started, a valve above a pneumatic device 15 is opened, nitrogen enters a nitrogen filling device 15-1 through a nitrogen filling port 15-2 to form a positive pressure (preventing air from being conveyed into the main housing 9 by atmospheric pressure) between a rotary drum 12 and the main housing 9 for about 5min, the centrifugal machine is started, materials are conveyed into a cavity of the centrifugal machine by a pump to be separated after the materials reach the rotating speed, at the moment, solids are discharged from a slag discharge port of the rotary drum 12, and a small amount of gas (inflammable or explosive) cannot be discharged to the outside of the centrifugal machine through the end face of the main housing 9 to be contacted with the air in the atmospheric pressure; meanwhile, a liquid outlet of the rotary drum 12 discharges a large amount of liquid and is controlled, and because a large amount of nitrogen enters the end face of the main housing 9, gas (flammable or explosive) cannot be discharged to the outside of the centrifuge through the end face of the main housing 9 to be contacted with air in the atmospheric pressure or is discharged into a collector along with the liquid through a pipeline. When the centrifugal machine operates at a high speed, the machine can vibrate, the installation of the tetrafluoro device 16 can prevent the semicircular plate 16-2 of the main housing 9 from colliding with the outer wall of the rotary drum 12 to generate sparks in abnormal operation, even if the collision occurs, the sparks can not be generated, accidents can be prevented from occurring, and the tetrafluoro device 16 is a protective action module.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all the modifications and equivalents of the technical spirit of the present invention to any simple modifications of the above embodiments are within the scope of the technical solution of the present invention.

Claims

1. The explosion-proof device for the housing of the centrifuge is characterized by being provided with a bottom frame, wherein the upper end of the bottom frame is fixedly provided with a motor, the output end of the motor is in toothed connection with a pneumatic device and a tetrafluoro device, and the pneumatic device and the tetrafluoro device are externally buckled and provided with a main housing;

2. The explosion-proof device for the housing of the centrifuge as claimed in claim 1, wherein a rotating drum is further installed inside the main housing, and an even bolt is arranged outside the rotating drum.

3. The centrifuge shield explosion vent apparatus of claim 1, wherein a cement foundation is cast into the lower end of said chassis.

4. The explosion-proof device for the centrifuge housing according to claim 1, wherein a shock absorber is installed at the lower end of the main housing, a clear liquid hopper is arranged at the bottom of the main housing, and a clear liquid outlet is installed at the bottom of the clear liquid hopper.

5. The explosion-proof device for the centrifuge cover shell according to claim 1, wherein the pneumatic device is provided with a nitrogen charging device, the upper end of the nitrogen charging device is provided with a nitrogen charging port, the lower end of the nitrogen charging port is provided with a tetrafluoro plate, the tetrafluoro plate is buckled with a gland, and an O-shaped ring is arranged between the gland and the nitrogen charging port.

6. The explosion-proof device for the centrifuge housing according to claim 1, wherein the tetrafluoro device is provided with a semicircular plate, the interior of the semicircular plate is provided with the tetrafluoro plate, the lower end of the tetrafluoro plate is provided with a flat cushion elastic pad, and the upper end of the semicircular plate is buckled with the auxiliary housing.