CN110617236B

CN110617236B - Self-starting prevention protection device for chute fan

Info

Publication number: CN110617236B
Application number: CN201910984624.4A
Authority: CN
Inventors: 袁小科
Original assignee: Lianping Zhongjian Rotary Kiln Cement Co ltd
Current assignee: Lianping Zhongjian Rotary Kiln Cement Co ltd
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-10-02
Anticipated expiration: 2039-10-16
Also published as: CN110617236A

Abstract

The invention relates to the technical field of protection devices and discloses a chute fan self-starting prevention protection device which comprises a base, wherein a fan shell is fixedly installed on one side of the top of the base, a driving motor is fixedly installed on the other side of the top of the base, one end, extending to the interior of the fan shell, of an output shaft of the driving motor is fixedly connected with an impeller, a support frame is fixedly installed on the front face of the fan shell, and a cleaning motor is fixedly installed on the front face of the support frame. This protection device is prevented from opening by oneself by chute fan, through mutually supporting of manometer and drainage device, cylinder for when the manometer detects the inside atmospheric pressure of chute too big, show that the inside dust of chute blocks up this moment, thereby the signal lamp starts the warning, and start the cylinder and drive drainage device and begin to rotate, thereby with the outside of air current discharge to the fan shell, prevent that the internal pressure of fan shell from too big causing the overload, improved the life of device.

Description

Self-starting prevention protection device for chute fan

Technical Field

The invention relates to the technical field of protection devices, in particular to a protection device for preventing a chute fan from being started automatically.

Background

The air conveying chute can be used for powdery materials such as cement, fly ash and the like which are easy to fluidize, the chute takes a high-pressure centrifugal fan as a power source, so that the material in the closed conveying chute keeps fluidized and inclines at one end to slowly flow, the main body part of the equipment has no transmission part, a novel coating wheel ventilation layer is adopted, the sealing operation and management are convenient, the equipment is light in weight, the power consumption is low, the conveying force is large, and the conveying direction is easy to change.

The dust content is great in the environment that centrifugal fan located, causes the condition that the fan transships very easily, and protection circuit can automatic cutout power this moment, and the cross period will automatic start again, but if the dust in fan and the soot blower pipe is not in time handled, still can cause the fan to transship, the continuous restart of fan motor causes the damage easily like this.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a self-starting prevention protection device for a chute fan, which solves the problems in the prior art.

The invention provides the following technical scheme: a chute fan self-starting prevention protection device comprises a base, a fan shell is fixedly installed on one side of the top of the base, a driving motor is fixedly installed on the other side of the top of the base, an impeller is fixedly connected to one end, extending to the interior of the fan shell, of an output shaft of the driving motor, a supporting frame is fixedly installed on the front of the fan shell, a cleaning motor is fixedly installed on the front of the supporting frame, a bearing is fixedly sleeved on the interior of the supporting frame, a lead screw is fixedly sleeved on the interior of the bearing, the lead screw is fixedly connected with the output shaft of the cleaning motor, a cleaning device is connected to the outer portion of the lead screw in a threaded mode, an air outlet pipe is arranged on the top of the fan shell, a drainage device is rotatably connected to one side of the air outlet pipe, a cylinder fixing plate is fixedly, the piston rod of cylinder is connected with the side rotation of drainage device, the opposite side fixed mounting who goes out the tuber pipe has controlling means, controlling means's side fixed mounting has manometer and signal lamp.

Preferably, the front surface of the fan shell is provided with a round blind hole, and the inner wall of the round blind hole is provided with a plurality of uniformly distributed air inlets.

Preferably, cleaning device includes the link, the inside of link is fixed to be cup jointed screw-nut, screw-nut and lead screw threaded connection, a plurality of evenly distributed's fixture block is seted up to the surface of link, fixture block and the positive air intake joint of fan shell.

Preferably, the drainage device includes the guide plate, the side of guide plate is provided with the connecting piece of two mutual symmetries, the inside joint of connecting piece has the slide bar, the outside of slide bar cup joints with the piston rod activity of cylinder.

Preferably, a waist-shaped hole is formed in the connecting piece, and a sliding rod is clamped in the waist-shaped hole.

Preferably, the side of the air outlet pipe is provided with a rectangular hole, the top of the inner wall of the rectangular hole is provided with a rotating shaft, the outside of the rotating shaft is movably sleeved with a drainage device, and the bottom of the inner cavity of the rectangular hole is provided with a sealing strip.

The invention has the following beneficial effects:

1. this protection device is prevented from opening by oneself by chute fan, through mutually supporting of manometer and drainage device, cylinder for when the manometer detects the inside atmospheric pressure of chute too big, show that the inside dust of chute blocks up this moment, thereby the signal lamp starts the warning, and start the cylinder and drive drainage device and begin to rotate, thereby with the outside of air current discharge to the fan shell, prevent that the internal pressure of fan shell from too big causing the overload, improved the life of device.

2. This chute fan prevents from opening protection device, through mutually supporting of cleaning device and clearance motor, lead screw, when the signal lamp begins to report to the police, the clearance motor starts to drive the lead screw and rotates this moment to make cleaning device begin to remove along the air intake, strike off accumulational dust with the air intake play, and discharge along with the air current from drainage device, prevent that the air intake from blockking up.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a sectional view of the internal structure of the blower housing according to the present invention;

FIG. 3 is a schematic view of the cleaning apparatus according to the present invention;

fig. 4 is a schematic structural view of the drainage device of the present invention.

In the figure: 1. a base; 2. a fan housing; 3. a drive motor; 4. a support frame; 5. cleaning the motor; 6. a screw rod; 7. a cleaning device; 71. a connecting frame; 72. a feed screw nut; 73. a clamping block; 8. an air outlet pipe; 9. a drainage device; 91. a baffle; 92. a connecting member; 93. a slide bar; 10. a cylinder fixing plate; 11. a cylinder; 12. a control device; 13. a pressure gauge; 14. a signal lamp.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a chute fan self-starting prevention protection device comprises a base 1, a fan housing 2 is fixedly installed on one side of the top of the base 1, a driving motor 3 is fixedly installed on the other side of the top of the base 1, an impeller is fixedly connected to one end of an output shaft of the driving motor 3, which extends to the inside of the fan housing 2, a support frame 4 is fixedly installed on the front of the fan housing 2, a cleaning motor 5 is fixedly installed on the front of the support frame 4, a bearing is fixedly sleeved on the inside of the support frame 4, a screw rod 6 is fixedly sleeved on the inside of the bearing, the screw rod 6 is fixedly connected with the output shaft of the cleaning motor 5, a cleaning device 7 is connected to the outer thread of the screw rod 6, an air outlet pipe 8 is arranged on the top of the fan housing 2, a drainage device 9 is rotatably connected to one side of the air outlet pipe 8, a cylinder, a piston rod of the cylinder 11 is rotatably connected with the side surface of the drainage device 9, a control device 12 is fixedly installed on the other side of the air outlet pipe 8, and a pressure gauge 13 and a signal lamp 14 are fixedly installed on the side surface of the control device 12.

Wherein, the front surface of the fan shell 2 is provided with a round blind hole, and the inner wall of the round blind hole is provided with a plurality of air inlets which are uniformly distributed;

the cleaning device 7 comprises a connecting frame 71, a screw rod nut 72 is fixedly sleeved in the connecting frame 71, the screw rod nut 72 is in threaded connection with the screw rod 6, a plurality of clamping blocks 73 which are uniformly distributed are arranged on the outer surface of the connecting frame 71, and the clamping blocks 73 are clamped with an air inlet in the front of the fan shell 2, so that in the moving process of the cleaning device 7, the clamping blocks 73 can scrape off dust at the air inlet to prevent the dust from blocking the air inlet;

the drainage device 9 comprises a guide plate 91, two symmetrical connecting pieces 92 are arranged on the side surface of the guide plate 91, a sliding rod 93 is clamped inside the connecting pieces 92, and the outside of the sliding rod 93 is movably sleeved with a piston rod of the air cylinder 11;

a waist-shaped hole is formed in the connecting piece 92, and a sliding rod 93 is clamped in the waist-shaped hole, so that the sliding rod 93 moves up and down in the waist-shaped hole to prevent the guide plate 91 from being clamped in the rotating process;

wherein, the rectangular hole has been seted up to the side of going out tuber pipe 8, and the top of rectangular hole inner wall is provided with the axis of rotation, and drainage device 9 has been cup jointed in the outside activity of axis of rotation, and the bottom of rectangular hole inner chamber is provided with the sealing strip, is convenient for seal the rectangular hole, prevents to lose heart.

Theory of operation, when the inside dust of chute too much causes the jam, manometer 13 detects the inside atmospheric pressure of chute too big this moment, thereby start signal lamp 14 through controlling means 12, remind the staff to clear up chute inside, start cylinder 11 simultaneously and promote drainage device 9 and begin to rotate, the bottom and the inner wall laminating of play tuber pipe 8 up to drainage device 9, thereby draw the outside of device with 2 inside air currents of fan housing, the overload phenomenon takes place for the preventing device, the life of device has been improved, start cleaning motor 5 with this while and drive lead screw 6 and rotate, also can drive cleaning device 7 and remove when lead screw 6 pivoted, utilize fixture block 73 to strike off the dust of air intake department, prevent that the air intake from blockking up.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a protection device is prevented from opening by oneself by chute fan, includes base (1), its characterized in that: a fan shell (2) is fixedly installed on one side of the top of the base (1), a round blind hole is formed in the front face of the fan shell (2), and a plurality of uniformly distributed air inlets are formed in the inner wall of the round blind hole; the fan is characterized in that a driving motor (3) is fixedly mounted on the other side of the top of the base (1), an output shaft of the driving motor (3) extends to one end of the inside of a fan shell (2) and is fixedly connected with an impeller, a support frame (4) is fixedly mounted on the front side of the fan shell (2), a cleaning motor (5) is fixedly mounted on the front side of the support frame (4), a bearing is fixedly sleeved on the inside of the support frame (4), a lead screw (6) is fixedly sleeved on the inside of the bearing and is fixedly connected with the output shaft of the cleaning motor (5), a cleaning device (7) is connected with the outer thread of the lead screw (6), the cleaning device (7) comprises a connecting frame (71), a lead screw nut (72) is sleeved on the inside of the connecting frame (71) and is in threaded connection with the lead screw nut (72), the lead screw nut (72) is in threaded connection with the lead screw (6), a plurality of uniformly, the clamping block (73) is clamped with an air inlet in the front of the fan shell (2); an air outlet pipe (8) is arranged at the top of the fan shell (2), one side of the air outlet pipe (8) is rotatably connected with a drainage device (9), one side of the air outlet pipe (8) is fixedly connected with an air cylinder fixing plate (10), an air cylinder (11) is fixedly installed at the top of the air cylinder fixing plate (10), a piston rod of the air cylinder (11) is rotatably connected with the side surface of the drainage device (9), a control device (12) is fixedly installed at the other side of the air outlet pipe (8), and a pressure gauge (13) and a signal lamp (14) are fixedly installed at the side surface of the control device (12); the control device (12) is connected with the air cylinder (11) and the cleaning motor (5), and when the pressure in the air outlet pipe (8) is too large, the control device (12) controls the signal lamp (14), the air cylinder (11) and the cleaning motor (5) to start and work.

2. The chute fan self-starting prevention protection device as claimed in claim 1, wherein: drainage device (9) are including guide plate (91), the side of guide plate (91) is provided with connecting piece (92) of two mutual symmetries, the inside joint of connecting piece (92) has slide bar (93), the outside of slide bar (93) cup joints with the piston rod activity of cylinder (11).

3. The chute fan self-starting prevention protection device as claimed in claim 2, wherein: waist-shaped holes are formed in the connecting pieces (92), and sliding rods (93) are clamped in the waist-shaped holes.

4. The chute fan self-starting prevention protection device as claimed in claim 1, wherein: the side of air outlet pipe (8) has been seted up the rectangular hole, and the top of rectangular hole inner wall is provided with the axis of rotation, and drainage device (9) have been cup jointed in the outside activity of axis of rotation, and the bottom of rectangular hole inner chamber is provided with the sealing strip.