CN216171539U

CN216171539U - Novel double-shaft stirrer shaft end spraying device

Info

Publication number: CN216171539U
Application number: CN202121914287.0U
Authority: CN
Inventors: 刘旭; 张刚; 郭月梅; 张晓辉; 王桂容; 徐安; 刘嘉豪
Original assignee: Luoyang Green Environmental Protection Engineering Co ltd
Current assignee: Luoyang Green Environmental Protection Engineering Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-04-05
Anticipated expiration: 2031-08-16

Abstract

The utility model discloses a novel double-shaft stirrer shaft end spraying device, wherein a feed inlet is formed in the top of the right end of a stirring box, two main water adding pipes are arranged on the left side of the feed inlet, and a discharge outlet is formed in the bottom of the left end of the stirring box; a driving motor is fixedly arranged on the right side of the stirring box, and the two rotating shafts are in transmission connection through a gear; a supporting bearing is sleeved on the rotating shaft close to the left end, a shaft end spraying device is arranged between the right end of the stirring rod and the supporting bearing of the rotating shaft, the inner cylinder is sleeved on the right end of the stirring rod, the outer cylinder is sleeved on the rotating shaft and fixed on the right end surface of the box body of the stirring box, and a sealing component is arranged between the outer cylinder and the rotating shaft; the utility model has reasonable design structure, simple manufacture, high reliability, convenient manufacture, installation and maintenance, high stirring and humidifying efficiency and long service life, can fully humidify and uniformly mix the powdery materials, and avoids the accelerated damage of parts such as a rolling bearing of the stirring shaft caused by the fact that dust enters the shaft end seal along the stirring shaft.

Description

Novel double-shaft stirrer shaft end spraying device

Technical Field

The utility model belongs to the technical field of double-shaft mixers, and particularly relates to a novel shaft end spraying device of a double-shaft mixer.

Background

The double-shaft stirrer is a common device in the fields of chemical industry, materials, buildings and the like, can stir and mix a large amount of materials which need to be fully mixed in engineering uniformly, utilizes the synchronous rotation of two symmetrical spiral shafts to add water for stirring when conveying powdery materials such as dry ash and the like, uniformly humidifies the dry ash powdery materials, achieves the aim of preventing the humidified materials from emitting the dry ash and seeping water drops, and achieves controllable humidity, thereby being convenient for humidifying ash loading and transporting or transferring to other conveying devices. The shaft end seal of the double-shaft stirrer is positioned between the stirring blade in the shell and the outer support bearing of the shell, and the main function of the double-shaft stirrer is to prevent powder from entering a shaft end gap when the stirrer works, and once the powder enters the shaft end gap, the powder can generate a grinding effect in the fixed and rotating parts to abrade the fixed and rotating parts and the sealing part.

The existing double-shaft mixer generally adds water behind powdery materials after being added into a double-shaft mixer body, the powdery materials at each position are not uniformly applied with water, the materials are mixed and stirred for a long time, the humidifying efficiency is low, raised dust is easy to generate at the shaft end of the double-shaft mixer, and dust enters the shaft end along a stirring shaft to be sealed, so that the sealing surface is severely abraded, and parts such as a rolling bearing of the stirring shaft are damaged at high speed.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a novel shaft end spraying device of a double-shaft mixer, which has the advantages of reasonable structure, simple manufacture, high reliability, convenient manufacture, installation and maintenance, high mixing and humidifying efficiency and long service life, can fully humidify and uniformly mix powder materials, and can prevent dust from entering a shaft end seal along a stirring shaft to cause accelerated damage of parts such as a rolling bearing of the stirring shaft and the like.

The technical scheme adopted by the utility model is as follows: a novel double-shaft stirrer shaft end spraying device comprises a stirring box, wherein a feed inlet is formed in the top of the right end of the stirring box, two main water adding pipes are arranged on the left side of the feed inlet, a discharge outlet is formed in the bottom of the left end of the stirring box, and a manhole is formed in the top of the left end of the stirring box; a driving motor is fixedly arranged on the right side of the stirring box, two stirring rods are arranged in parallel in the box body of the stirring box side by side, helical blades are fixed on the peripheries of the stirring rods, rotating shafts are fixedly connected to the right ends of the stirring rods respectively, the rotating shafts extend out of the right end of the box body of the stirring box, the right end of one rotating shaft is connected with the output end of the driving motor, and the two rotating shafts are connected through gear transmission; the rotating shaft is sleeved with a supporting bearing near the left end, a shaft end spraying device is arranged between the right end of the stirring rod and the supporting bearing of the rotating shaft, the shaft end spraying device comprises an outer barrel and an inner barrel, the inner barrel is sleeved on the right end of the stirring rod, the outer barrel is sleeved on the rotating shaft and fixed on the right end face of the stirring box body, and a sealing assembly is arranged between the outer barrel and the rotating shaft.

The outer cylinder body and the inner cylinder body are both in a conical structure, and annular plates are fixedly arranged on the right end faces of the outer cylinder body and the inner cylinder body; the left side port of outer barrel and interior barrel forms the annular water jet, and the annular water jet is located the below of feed inlet.

The stirring rod right-hand member cover is equipped with and keeps off the ring, and the fixed suit of annular slab of inner barrel right-hand member face keeps off ring right side excircle, keeps off the radial equipartition in ring left side and is provided with the jackscrew, and the jackscrew will keep off the ring and fix on the stirring rod, is adjusted inner barrel by keeping off ring and jackscrew around the position on the stirring rod.

The outer barrel and the inner barrel form an inner cavity, a water inlet is formed in the lower portion of the outer barrel and communicated with the inner cavity.

The working process of the shaft end water spraying device of the double-shaft mixer is as follows: when the double-shaft mixer works, the driving motor operates to drive one rotating shaft and the stirring rod provided with the helical blades to rotate, the other rotating shaft and the stirring rod provided with the helical blades are driven to rotate relatively at a constant speed by the meshing transmission gear, after a powdery material enters from a feed inlet at the top of the right end of the stirring box, water enters from a water inlet arranged at the lower part of an outer cylinder of the shaft-end spraying device, enters into an inner cavity jointly formed by the outer cylinder and the inner cylinder, and is sprayed out along an annular water spraying port formed at the left end of the outer cylinder and the left end of the inner cylinder in a diffused mode, the annular water spraying port is positioned below the feed inlet, and the powdery material is pre-wetted by water sprayed out from the annular water spraying port; because the rotation directions of two stirring rods and helical blades arranged in the stirring box are opposite, the powdery material can move towards the left end under the action of the stirring rods and the helical blades, two main water adding pipes positioned at the left side of the feeding hole spray water, water is added to the powdery material, the powdery material is stirred under the action of the stirring rods and the helical blades, the powdery material is changed into a wet material with controllable humidity, and finally the wet material is discharged from a discharge hole at the bottom of the left end of the stirring box after the powdery material reaches the standard through manhole observation.

A shaft end spraying device is arranged between the right end of the stirring rod and a supporting bearing of the rotating shaft, the shaft end spraying device comprises an inner cylinder and an outer cylinder, the inner cylinder is sleeved on the right end of the stirring rod, the outer cylinder is sleeved on the rotating shaft and fixed on the right end face of the box body of the stirring box, and a sealing assembly is arranged between the outer cylinder and the rotating shaft; the purpose of this is: the axle head spray set of biax mixer sets up at the agitator tank tip, and the supporting bearing of likepowder material and axis of rotation in the isolated agitator tank box avoids the dust to get into the axle head clearance of axis of rotation after fixed with higher speed and the wearing and tearing of rotary part and sealing member.

A baffle ring is sleeved at the right end of the stirring rod, an annular plate at the right end surface of the inner barrel is fixedly sleeved on an outer circle at the right side of the baffle ring, jackscrews are radially and uniformly distributed at the left side of the baffle ring, and the baffle ring is fixed on the stirring rod by the jackscrews; the purpose of this is: the baffle ring is sleeved at the right end of the stirring rod and can move, the front and back positions of the inner cylinder body of the shaft end spraying device on the stirring rod are adjusted by matching of the jackscrew and the baffle ring, and the purpose that the size of the annular water spray nozzle of the shaft end spraying device is adjustable is achieved, so that the requirements of different powdery materials on humidity are met.

The outer cylinder body and the inner cylinder body are both in a conical structure, and annular plates are fixedly arranged on the right end faces of the outer cylinder body and the inner cylinder body; the left side ports of the outer cylinder body and the inner cylinder body form an annular water spraying opening which is positioned below the feeding hole; the purpose of this is: set up annular water jet, the diffusion blowout, it is big to spray the area, can spray water the humidification to the powdery material that gets into the agitator tank more evenly, spouts wet the watering to powdery material earlier by axle head spray set, stirs again, extension humidification stirring route makes the powdery material humidification mix more thoroughly.

The utility model has the beneficial effects that:

(1) different from the mode that the powdery material is added into the body of the double-shaft mixer and then added with water above the body of the double-shaft mixer in the prior double-shaft mixer, the double-shaft mixer firstly sprays the powdery material with a shaft end spraying device for wetting and adding water and then mixes, prolongs the humidifying and stirring path, ensures that the mixing is more thorough, and improves the stirring and humidifying efficiency.

(2) The annular water spray nozzle of the shaft end spraying device of the double-shaft mixer is adjustable in size, and the requirements of different powder materials on humidity can be met.

(3) This biax mixer axle head spray set sets up at the agitator tank tip, isolated incasement powder and bearing, avoids the powder to get into behind the axle head clearance with higher speed fixed with the wearing and tearing of rotary part and sealing member.

Drawings

FIG. 1 is a schematic overall front view of a spray device at the shaft end of a double-shaft mixer according to the present invention;

FIG. 2 is a schematic diagram of the whole top view structure of the shaft end spraying device of the double-shaft mixer of the utility model;

fig. 3 is an enlarged structural schematic diagram of the shaft end spraying device.

The labels in the figure are: 1. an outer cylinder; 2. an inner cylinder; 3. an annular water jet; 4. carrying out top thread; 5. a baffle ring; 6. a stirring rod; 7. an inner cavity; 8. a water inlet; 9. a seal assembly; 10. a support bearing; 11. a rotating shaft; 12. a stirring box; 13. a gear; 14. a drive motor; 15. a feed inlet; 16. a main water adding pipe; 17. a discharge port; 18. a helical blade; 19. a manhole.

Detailed Description

The following detailed description of embodiments of the utility model is provided in connection with the accompanying drawings.

As shown in fig. 1-3, a novel double-shaft stirrer shaft end spraying device comprises a stirring box 12, wherein a feed inlet 15 is formed in the top of the right end of the stirring box 12, two main water adding pipes 16 are arranged on the left side of the feed inlet 15, a discharge outlet 17 is formed in the bottom of the left end of the stirring box 12, and a manhole 19 is formed in the top of the left end of the stirring box 12; a driving motor 14 is fixedly arranged on the right side of the stirring box 12, two stirring rods 6 are parallelly arranged in the box body of the stirring box 12 side by side, helical blades 18 are fixed on the periphery of each stirring rod 6, rotating shafts 11 are fixedly connected to the right ends of the stirring rods 6 respectively, the rotating shafts 11 extend out of the right end of the box body of the stirring box 12, the right end of one rotating shaft 11 is connected with the output end of the driving motor 14, and the two rotating shafts 11 are in transmission connection through a gear 13; a supporting bearing 10 is sleeved on the rotating shaft 11 close to the left end, a shaft end spraying device is arranged between the right end of the stirring rod 6 and the supporting bearing 10 of the rotating shaft 11, the shaft end spraying device comprises an outer cylinder 1 and an inner cylinder 2, the inner cylinder 2 is sleeved on the right end of the stirring rod 6, the outer cylinder 1 is sleeved on the rotating shaft 11 and fixed on the right end face of the stirring box 12, and a sealing component 9 is arranged between the outer cylinder 1 and the rotating shaft 11; the shaft end spraying device isolates the powdery material in the box body of the stirring box 12 from the supporting bearing 10 of the rotating shaft 11, and the accelerated fixing and the abrasion of the rotating part and the sealing part after the dust enters the shaft end gap of the rotating shaft 11 are avoided.

The outer cylinder body 1 and the inner cylinder body 2 are both in a conical structure, and annular plates are fixedly arranged on the right end faces of the outer cylinder body 1 and the inner cylinder body 2; the left side ports of the outer cylinder body 1 and the inner cylinder body 2 form an annular water spraying opening 3, and the annular water spraying opening 3 is positioned below the feed inlet 15; set up annular water jet 3 and can spray water the humidification to the powdery material that gets into agitator tank 12 more evenly, spout the wetting and add water to powdery material earlier by axle head spray set, stir again, prolong humidification stirring route, make the powdery material humidification mix more thoroughly.

6 right-hand member covers of puddler are equipped with and keep off ring 5, and the fixed suit of annular plate of 2 right-hand members of interior barrel is on keeping off 5 right side excircle on the ring, keeps off 5 left sides radial equipartitions of ring and is provided with jackscrew 4, and jackscrew 4 will keep off ring 5 and fix on puddler 6, and barrel 2 is adjusted by keeping off ring 5 and jackscrew 4 around the position on puddler 6, reaches 3 adjustable purposes of size of axle head spray set's annular water jet to satisfy the requirement of different powdery materials to humidity.

The outer barrel 1 and the inner barrel 2 form an inner cavity 7, a water inlet 8 is formed in the lower portion of the outer barrel 1, and the water inlet 8 is communicated with the inner cavity 7.

The working process of the shaft end water spraying device of the double-shaft mixer is as follows: when the double-shaft mixer works, the driving motor 14 operates to drive one rotating shaft 11 and the stirring rod 6 provided with the helical blade 18 to rotate, the other rotating shaft 11 and the stirring rod 6 provided with the helical blade 18 are driven to rotate relatively at a constant speed by meshing the transmission gear 13, when a powdery material enters from the feed port 15 at the top of the right end of the stirring box 12, water enters from the water inlet 8 arranged at the lower part of the outer cylinder 1 of the shaft-end spraying device, enters into the inner cavity 7 jointly formed by the outer cylinder 1 and the inner cylinder 2, and is sprayed out along the annular water spraying port 3 formed at the left end of the outer cylinder 1 and the inner cylinder 2 in a diffused manner, the annular water spraying port 3 is positioned below the feed port 15, and the powdery material is pre-wetted by the water sprayed out from the annular water spraying port 3; because the direction of rotation of two puddlers 6 and helical blade 18 that set up in agitator tank 12 is opposite, powdery material can be under puddler 6 and helical blade 18's effect, by agitator tank 12 right-hand member left end motion, be located two main filler pipes 16 water sprays on the left of feed inlet 15, add water to powdery material, and stir under puddler 6 and helical blade 18's effect, become the controllable wet material of humidity with powdery material, observe discharge gate 17 discharge from agitator tank 12 left end bottom after up to standard by manhole 19 at last.

Claims

1. The utility model provides a novel double-shaft mixer axle head sprays device which characterized in that: the stirring device comprises a stirring box, wherein a feeding hole is formed in the top of the right end of the stirring box, two main water adding pipes are arranged on the left side of the feeding hole, a discharging hole is formed in the bottom of the left end of the stirring box, and a manhole is formed in the top of the left end of the stirring box; a driving motor is fixedly arranged on the right side of the stirring box, two stirring rods are arranged in parallel in the box body of the stirring box side by side, helical blades are fixed on the peripheries of the stirring rods, rotating shafts are fixedly connected to the right ends of the stirring rods respectively, the rotating shafts extend out of the right end of the box body of the stirring box, the right end of one rotating shaft is connected with the output end of the driving motor, and the two rotating shafts are connected through gear transmission; the rotating shaft is sleeved with a supporting bearing near the left end, a shaft end spraying device is arranged between the right end of the stirring rod and the supporting bearing of the rotating shaft, the shaft end spraying device comprises an outer barrel and an inner barrel, the inner barrel is sleeved on the right end of the stirring rod, the outer barrel is sleeved on the rotating shaft and fixed on the right end face of the stirring box body, and a sealing assembly is arranged between the outer barrel and the rotating shaft.

2. The novel shaft end spraying device of the double-shaft mixer as claimed in claim 1, wherein: the outer cylinder body and the inner cylinder body are both in a conical structure, and annular plates are fixedly arranged on the right end faces of the outer cylinder body and the inner cylinder body; the left side port of outer barrel and interior barrel forms the annular water jet, and the annular water jet is located the below of feed inlet.

3. The novel shaft end spraying device of the double-shaft mixer as claimed in claim 1, wherein: the right end of the stirring rod is sleeved with a baffle ring, an annular plate on the right end face of the inner barrel is fixedly sleeved on an excircle on the right side of the baffle ring, jackscrews are uniformly distributed on the left side of the baffle ring in the radial direction, and the baffle ring is fixed on the stirring rod by the jackscrews.

4. The novel shaft end spraying device of the double-shaft mixer as claimed in claim 1, wherein: the outer cylinder and the inner cylinder form an inner cavity, and a water inlet is arranged at the lower part of the outer cylinder and communicated with the inner cavity.