CN110056519B

CN110056519B - Energy-conserving centrifugal fan of cement manufacture is exclusively used in

Info

Publication number: CN110056519B
Application number: CN201910464205.8A
Authority: CN
Inventors: 牛德春; 吴吉华; 聂春海
Original assignee: Zhejiang Weibang Fan Co ltd
Current assignee: Zhejiang Weibang Fan Co ltd
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2021-06-22
Anticipated expiration: 2039-05-30
Also published as: CN110056519A

Abstract

The invention discloses an energy-saving centrifugal fan special for cement production, which belongs to the technical field of fans and comprises a rack, a volute, a dustproof assembly, a cleaning assembly, a detection assembly, a driving assembly and a rotating assembly, wherein the volute is fixed on the top of the rack, the dustproof assembly is arranged on the front side wall of the volute, the cleaning assembly is arranged on the top of the volute, the driving assembly is in transmission connection with the rotating assembly, the top of the volute is provided with a through hole for the front end of the cleaning assembly to pass through, the top of the volute is provided with a pulling assembly for controlling the through hole to be closed and opened, the outer side wall of the cleaning assembly is provided with a controller, and the cleaning assembly, the detection assembly and the driving assembly are all electrically connected with the controller; and utilize the design of filtering screen panel, can realize wholly under the user state, the effectual dust that prevents gets into improves holistic life.

Description

Energy-conserving centrifugal fan of cement manufacture is exclusively used in

Technical Field

The invention relates to the technical field of fans, in particular to an energy-saving centrifugal fan special for cement production.

Background

Centrifugal fans are machines which increase gas pressure and convey gas by means of input mechanical energy, and are widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draught of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grains; in the working process, a common motor drives an air compressor impeller, airflow axially enters a blade space from a fan, and rotates along with the impeller under the action of the impeller rotating at a high speed, energy is improved under the action of inertia, the airflow leaves the impeller along the radius direction, and the airflow does work by the generated centrifugal force.

At present, the centrifugal fan used in the cement industry mostly adopts a traditional engineering design method, the blade profile is in a single arc shape, the blade is convenient to process but has the defect of low air supply efficiency, the centrifugal fan is used as a high-energy-consumption device, the consumed power resource accounts for a large proportion in each cost expenditure of enterprises, and when the centrifugal fan is used for cement production, the blade and the impeller are easily adhered with dust and impurities and are easily damaged, so that the production efficiency is influenced.

Disclosure of Invention

The invention aims to provide an energy-saving centrifugal fan special for cement production, which aims to solve the technical problems that the centrifugal fan in the prior art is low in air supply efficiency, and blades and impellers are easy to be adhered with dust and impurities and easy to damage.

The invention provides an energy-saving centrifugal fan special for cement production, which comprises a frame, a volute, a dustproof assembly, a cleaning assembly, a detection assembly, a driving assembly and a rotating assembly, the volute is fixed on the top of the frame, the dustproof assembly is arranged on the front side wall of the volute, the cleaning assembly is arranged on the top of the volute, the driving assembly is positioned beside the volute and is fixed on the top of the frame, the driving component is in transmission connection with the rotating component, the rotating component is arranged inside the volute, the detecting component is arranged on the rear side wall of the volute and is positioned at the rear end of the rotating component, the top of the volute is provided with a through hole for the front end of the cleaning component to pass through, the top of the volute is provided with a pulling component for controlling the through hole to be closed and opened, the outer side wall of the cleaning assembly is provided with a controller, and the cleaning assembly, the detection assembly and the driving assembly are all electrically connected with the controller.

Preferably, the dustproof assembly comprises a filter screen, a mounting seat, a connecting block, a bolt, a nut and a washer, the connecting block is fixedly connected with the outer side wall of the filter screen, the top end of the connecting block is located in the mounting seat, the mounting seat is horizontally fixed on the front side wall of the volute, one end of the bolt penetrates through the mounting seat, the connecting block and the washer and is in locking fit with the nut, and a round hole for the bolt to penetrate through is formed in the connecting block.

Preferably, wash the subassembly including installation cover, electric putter, connection bedplate and cystosepiment, the installation cover is vertical fixes at the top of spiral case, and electric putter, connection bedplate and cystosepiment all set up in the installation cover, are equipped with the fixing base that is used for fixed electric putter on the interior roof of installation cover, and electric putter is vertical setting and its output and connection bedplate fixed connection, and the cystosepiment bonds in the bottom of connecting the bedplate.

Preferably, the rotating assembly comprises a front disc, a rear disc, a rotating shaft, a bearing, a shaft sleeve and a plurality of blades, the blades are fixed between the front disc and the rear disc, all the blades are fixedly connected with the front disc and the rear disc, the shaft sleeve is sleeved at the front end of the rotating shaft, the shaft sleeve is arranged at the center of the rear disc and is fixedly connected with the center of the rear disc, the bearing sleeve is sleeved at the rear end of the rotating shaft and is fixed on the rear side wall of the volute, and the output end of the driving assembly is in transmission connection with the rear end of the rotating shaft.

Preferably, the molded line of each blade is in a double-arc shape, and a plurality of blades are uniformly distributed along the axis of the shaft sleeve.

Preferably, drive assembly includes driving motor, protection casing, hold-in range and two synchronizing wheels, and driving motor is the level and fixes at the top of frame and its output and a synchronizing wheel fixed connection, and another synchronizing wheel is fixed on the rear end of axis of rotation, and the hold-in range cover is established on the outside of two synchronizing wheels, and the protection casing cover is established on the outside of hold-in range.

Preferably, the detection assembly comprises a rectangular cover and two induction components, the two induction components are arranged at the outer edge of the rear end of the rotating shaft at a right angle, the rear side wall of the volute is provided with a type groove for installing the two induction components, and the rectangular cover is fixed on the rear side wall of the volute through screws and can cover the two induction components.

Preferably, every response part all includes touch block, spring, connecting axle, top and pressure sensor, and touch block is circular-arc structure and contradicts with the outer wall of bearing, and the spring housing is established on the connecting axle and its both ends respectively with touch block and top move piece fixed connection, top move the top fixed connection of bottom and connecting axle of piece, pressure sensor's output and the top contact of top move the piece.

Preferably, the pulling assembly comprises a closing plate and a rib plate, one end of the rib plate is fixedly connected with the closing plate, the other end of the rib plate protrudes out of the front side wall of the volute, and a sliding groove for the sliding movement of the closing plate is formed in the top of the volute.

Preferably, the driving motor, the electric push rod and the two pressure sensors are electrically connected with the controller, a water outlet communicated with the interior of the volute is formed in the bottom of the volute, and a plug is arranged in the water outlet.

Compared with the prior art, the invention has the beneficial effects that:

(1) the driving motor drives one synchronizing wheel fixedly connected with the output end of the driving motor to rotate, and under the action of the synchronous belt, the driving motor drives a rotating shaft fixedly connected with the other synchronizing wheel to synchronously rotate, so that the shaft sleeve, the front disc, the rear disc and the plurality of blades are driven to synchronously rotate along with the shaft sleeve, the front disc, the rear disc and the plurality of blades, and air supply operation is realized;

(2) when cleaning operation is required to be carried out on a plurality of blades, the strip plate is pulled by hands to drive the sealing plate to slide in the sliding groove, so that the through hole is opened, the driving motor drives one synchronizing wheel fixedly connected with the output end of the driving motor to intermittently rotate, the rotating shaft fixedly connected with the other synchronizing wheel is driven to synchronously and intermittently rotate under the action of the synchronous belt, so that the shaft sleeve, the front disc, the rear disc and the blades are driven to synchronously and intermittently rotate along with the shaft sleeve, the front disc, the rear disc and the blades, the electric push rod drives the foam plate on the front end of the connecting seat plate to move in the vertical direction, so that the foam plate can move between the two blades to clean the blades, after the cleaning operation of all the blades is completed, the strips are pulled by hands to drive the sealing plate to slide in the sliding groove, so that the through hole is closed, then water is supplied to the volute, the blades are prevented from being stuck with dust to damage the integral balance and increase the rotation resistance of the blades when being used for a long time, so that the integral failure rate is reduced and the energy consumption is saved; by means of the design of the filter screen cover, dust can be effectively prevented from entering the filter screen cover when the filter screen cover is not used, and the service life of the filter screen cover is prolonged;

(3) when the bearing appears the uneven condition of atress because of rotating for a long time and takes place, will appear being located its inside roller this moment and take place slight deformation, increase along with live time, the bearing is constantly increased because of the deformation degree of roller, thereby lead to the whole trouble that takes place of equipment, conflict through the outer wall of touch multitouch and bearing, when the bearing takes place deformation, can produce pressure to the touch multitouch when it takes place to rotate, under the effect of spring, drive the roof board and remove, pressure sensor carries out real-time supervision to the roof board, and transmit its monitoring data to the controller, the controller analyzes data and controls driving motor stop drive, realize that timely suggestion overhauls, make things convenient for the artifical change operation to the bearing in later stage, the practicality is stronger.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

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

FIG. 2 is a top view of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a side view of the present invention;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 6 is an enlarged view at C of FIG. 5;

FIG. 7 is a schematic view of a partial three-dimensional split structure according to the present invention;

FIG. 8 is an enlarged view taken at D in FIG. 7;

reference numerals:

the device comprises a rack 1, a volute 2, a dustproof assembly 3, a filter screen 31, a mounting seat 32, a connecting block 33, a bolt 34, a nut 35, a gasket 36, a cleaning assembly 4, a mounting cover 41, an electric push rod 42, a connecting seat plate 43, a foam plate 44, a fixing seat 45, a detection assembly 5, a rectangular cover 51, a sensing component 52, an abutting block 521, a spring 522, a connecting shaft 523, a jacking block 524, a pressure sensor 525, a driving assembly 6, a driving motor 61, a protective cover 62, a synchronous belt 63, a rotating assembly 7, a front disc 71, a rear disc 72, a rotating shaft 73, a bearing 74, a shaft sleeve 75, blades 76, a pulling assembly 8, a closing plate 81, a ridge plate 82, a sliding groove 83 and a controller 9.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 8, an embodiment of the present invention provides an energy-saving centrifugal fan specially used for cement production, including a frame 1, a volute 2, a dustproof assembly 3, a cleaning assembly 4, a detection assembly 5, a driving assembly 6 and a rotating assembly 7, where the volute 2 is fixed on the top of the frame 1, the dustproof assembly 3 is arranged on the front side wall of the volute 2, the cleaning assembly 4 is arranged on the top of the volute 2, the driving assembly 6 is located beside the volute 2 and fixed on the top of the frame 1, the driving assembly 6 is in transmission connection with the rotating assembly 7, the rotating assembly 7 is arranged inside the volute 2, the detection assembly 5 is arranged on the rear side wall of the volute 2 and located at the rear end of the rotating assembly 7, the top of the volute 2 is provided with a through hole for the front end of the cleaning assembly 4 to pass through, the top of the volute 2 is provided with a pulling assembly 8 for controlling the through hole to be closed and opened, be equipped with controller 9 (the KY02S standard type controller of the city plete electronics limited of deep certificate) on the lateral wall of washing subassembly 4, wash subassembly 4, determine module 5, drive assembly 6 and all with controller 9 electric connection.

The dustproof assembly 3 comprises a filter screen cover 31, a mounting seat 32, a connecting block 33, a bolt 34, a nut 35 and a gasket 36, the connecting block 33 is fixedly connected with the outer side wall of the filter screen cover 31, the top end of the connecting block 33 is located in the mounting seat 32, the mounting seat 32 is horizontally fixed on the front side wall of the volute 2, one end of the bolt 34 penetrates through the mounting seat 32, the connecting block 33 and the gasket 36 and is in locking fit with the nut 35, a round hole for the bolt 34 to penetrate through is formed in the connecting block 33, the bolt 34 penetrates through the connecting block 33, the filter screen cover 31 can rotate on the axis of the bolt 34, accordingly, the volute 2 is opened, regular maintenance operation is facilitated, and through locking fit among the bolt 34, the nut 35 and the gasket 36, quick detachment and installation of the filter screen cover 31.

The cleaning component 4 comprises an installation cover 41, an electric push rod 42, a connection seat plate 43 and a foam plate 44, the installation cover 41 is vertically fixed at the top of the volute 2, the electric push rod 42, the connection seat plate 43 and the foam plate 44 are all arranged in the installation cover 41, a fixing seat 45 for fixing the electric push rod 42 is arranged on the inner top wall of the installation cover 41, the electric push rod 42 is vertically arranged, the output end of the electric push rod 42 is fixedly connected with the connection seat plate 43, the foam plate 44 is adhered to the bottom of the connection seat plate 43, when the cleaning operation of the rotating component 7 is required, a hand drives the pulling component 8 to slide to open a through hole, the driving motor 61 drives the rotating component 7 to intermittently rotate, the electric push rod 42 drives the foam plate 44 on the front end of the connection seat plate 43 to move in the vertical direction, the foam plate 44 moves between two blades 76 to wipe the blades, after the wiping operation of all the blades 76 is, the pulling assembly 8 is driven by hands to slide, so that the through hole is closed, water is introduced into the volute 2, the driving motor 61 drives the plurality of blades 76 to rotate, and all the blades 76 are further cleaned.

The rotating assembly 7 comprises a front disc 71, a rear disc 72, a rotating shaft 73, a bearing 74, a shaft sleeve 75 and a plurality of blades 76, the plurality of blades 76 are fixed between the front disc 71 and the rear disc 72, all the blades 76 are fixedly connected with the front disc 71 and the rear disc 72, the shaft sleeve 75 is sleeved on the front end of the rotating shaft 73, the shaft sleeve 75 is arranged at the center of the rear disc 72 and is fixedly connected with the rear disc 72, the bearing 74 is sleeved on the rear end of the rotating shaft 73 and is fixed on the rear side wall of the volute 2, the output end of the driving assembly 6 is in transmission connection with the rear end of the rotating shaft 73, the rotating shaft 73 is driven to rotate by the driving assembly 6, and then the shaft sleeve 75, the front disc 71, the rear disc 72 and the plurality of blades 76 are driven to synchronously.

The molded line of each blade 76 is double circular arc, and a plurality of blades 76 are uniformly distributed along the axis of the shaft sleeve 75, so that the flow loss of the flow channel between the front disc 71 and the rear disc 72 can be improved by the double circular arc design of each blade 76, and the integral air supply efficiency is improved.

Drive assembly 6 includes driving motor 61, protection casing 62, hold-in range 63 and two synchronizing wheels, driving motor 61 is the level and fixes at the top of frame 1 and its output and a synchronizing wheel fixed connection, another synchronizing wheel is fixed on the rear end of axis of rotation 73, hold-in range 63 cover is established on the outside of two synchronizing wheels, the protection casing 62 cover is established on the outside of hold-in range 63, rotate rather than output fixed connection's a synchronizing wheel through driving motor 61 drive, under the effect of hold-in range 63, drive axis of rotation 73 synchronous revolution with another synchronizing wheel fixed connection, both drive axle sleeve 75, front disc 71, rear disc 72 and a plurality of blade 76 synchronous rotation thereupon, thereby realize the air supply operation.

Detection subassembly 5 includes rectangle cover 51 and two response parts 52, two response parts 52 are the right angle setting in the rear end outward flange department of axis of rotation 73, be equipped with the type groove that supplies two response parts 52 to install on the back lateral wall of spiral case 2, be the right angled setting through two response parts 52, can detect the horizontal and vertical deformation of bearing 74, rectangle cover 51 passes through the screw fixation and can cover two response parts 52 on the back lateral wall of spiral case 2, convenient to detach and installation, regularly maintain the operation to two response parts 52.

Each sensing component 52 comprises a contact block 521, a spring 522, a connecting shaft 523, a pushing block 524 and a pressure sensor 525, the contact block 521 is in an arc-shaped structure and is abutted against the outer wall of the bearing 74, the spring 522 is sleeved on the connecting shaft 523, two ends of the spring 522 are respectively and fixedly connected with the contact block 521 and the pushing block 524, the bottom of the pushing block 524 is fixedly connected with the top end of the connecting shaft 523, the output end of the pressure sensor 525 is contacted with the top of the pushing block 524, when the bearing 74 is stressed unevenly due to long-term rotation, a roller in the bearing is slightly deformed, the deformation degree of the bearing 74 is increased continuously due to the roller along with the increase of service time, so that the whole equipment is broken down, when the bearing 74 is deformed, pressure is generated on the contact block 521 when the bearing 74 rotates, and under the action of the spring 522, drive the removal of ejector plate, pressure sensor 525 carries out real-time supervision to the ejector plate to transmit its monitoring data to controller 9, controller 9 carries out the analysis to data and controls driving motor 61 and stop the drive, realizes timely suggestion and overhauls, makes things convenient for the manual work of later stage to change the operation to bearing 74.

Pulling assembly 8 includes closing plate 81 and rib board 82, the one end and the closing plate 81 fixed connection of rib board 82, and the other end salient sets up in the preceding lateral wall of spiral case 2, and the top of spiral case 2 is equipped with the spout 83 that supplies closing plate 81 sliding motion, drives closing plate 81 through the hand pulling rib board 82 and removes in spout 83, realizes closing and opening control to the through-hole, the holistic air supply operation of being convenient for and the clearance operation of a plurality of blades 76.

The driving motor 61, the electric push rod 42 and the two pressure sensors 525 are all electrically connected with the controller 9, a water outlet 10 communicated with the inside of the volute 2 is formed in the bottom of the volute 2, a plug 11 is arranged in the water outlet 10, preset values are carried out on the pressure of the two pushing blocks 524 through the two pressure sensors 525, when the controller 9 detects that the detection data of the two pressure sensors 525 exceed the preset values, the bearing 74 is described to be deformed, the worker is prompted to overhaul operation in time, and when the water is cleaned on the blades 76, the water can be conveniently discharged by using the plug 11.

The working principle of the invention is as follows: the driving motor 61 drives one synchronous wheel fixedly connected with the output end of the driving motor to rotate, and under the action of the synchronous belt 63, the driving motor drives the rotating shaft 73 fixedly connected with the other synchronous wheel to synchronously rotate, so that the shaft sleeve 75, the front disc 71, the rear disc 72 and the plurality of blades 76 are driven to synchronously rotate along with the shaft sleeve, the front disc 71, the rear disc 72 and the plurality of blades 76, and therefore air supply operation is achieved, wherein the flow loss of a flow channel between the front disc 71 and the rear disc 72 can be improved by the aid of the double-arc design of each blade 76, and the integral air supply efficiency; when cleaning operation is required to be carried out on a plurality of blades 76, a person pulls the edge strip plate 82 to drive the sealing plate 81 to slide in the sliding groove 83 to realize opening of the through hole, the driving motor 61 drives one synchronizing wheel fixedly connected with the output end of the driving motor to intermittently rotate, the rotating shaft 73 fixedly connected with the other synchronizing wheel is driven to synchronously and intermittently rotate under the action of the synchronous belt 63, so that the shaft sleeve 75, the front disc 71, the rear disc 72 and the plurality of blades 76 are driven to synchronously and intermittently rotate, the electric push rod 42 drives the foam plate 44 on the front end of the connecting seat plate 43 to vertically move, so that the foam plate 44 moves between the two blades 76 to wipe the blades, after the wiping operation of all the blades 76 is completed, the person pulls the edge strip plate 82 to drive the sealing plate 81 to slide in the sliding groove 83 to close the through hole, then water flows into the volute 2, and the driving motor 61 drives the plurality of blades 76 to rotate, further cleaning all the blades 76, preventing the plurality of blades 76 from being stuck with dust and damaging the overall balance after being used for a long time, and increasing the rotation resistance of the plurality of blades 76, thereby realizing the reduction of the overall failure rate and saving the energy consumption; moreover, by utilizing the design of the filter screen cover 31, the dust can be effectively prevented from entering the whole body when the whole body is not used, and the service life of the whole body is prolonged; when bearing 74 takes place because of the uneven condition of atress appears in long-term rotation, the roller that will appear being located its inside this moment takes place slight deformation, along with the increase of live time, bearing 74 constantly increases because of the deformation degree of roller, thereby lead to the whole trouble that takes place of equipment, conflict with the outer wall of bearing 74 through touch-block 521, when bearing 74 takes place deformation, can produce pressure to touch-block 521 when it takes place to rotate, under spring 522's effect, it removes to drive the ejector plate, pressure sensor 525 carries out real-time supervision to the ejector plate, and transmit its monitoring data to controller 9, controller 9 analyzes data and controls driving motor 61 to stop driving, realize in time the suggestion and overhaul, make things convenient for the artifical change operation of later stage to bearing 74, the practicality is stronger.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides an energy-conserving centrifugal fan of cement manufacture is exclusively used in which characterized in that: comprises a frame (1), a volute (2), a dustproof component (3), a cleaning component (4), a detection component (5), a driving component (6) and a rotating component (7), wherein the volute (2) is fixed on the top of the frame (1), the dustproof component (3) is arranged on the front side wall of the volute (2), the cleaning component (4) is arranged at the top of the volute (2), the driving component (6) is positioned at the side of the volute (2) and fixed on the top of the frame (1), the driving component (6) is in transmission connection with the rotating component (7), the rotating component (7) is arranged inside the volute (2), the detection component (5) is arranged on the rear side wall of the volute (2) and positioned at the rear end of the rotating component (7), the top of the volute (2) is provided with a through hole for the front end of the cleaning component (4) to pass through, the top of the volute (2) is provided with a pulling component (8) for controlling the through hole to be closed and opened, the outer side wall of the cleaning assembly (4) is provided with a controller (9), and the cleaning assembly (4), the detection assembly (5) and the driving assembly (6) are electrically connected with the controller (9);

the rotating assembly (7) comprises a front disc (71), a rear disc (72), a rotating shaft (73), a bearing (74), a shaft sleeve (75) and a plurality of blades (76), the plurality of blades (76) are fixed between the front disc (71) and the rear disc (72), all the blades (76) are fixedly connected with the front disc (71) and the rear disc (72), the shaft sleeve (75) is sleeved on the front end of the rotating shaft (73), the shaft sleeve (75) is arranged in the center of the rear disc (72) and fixedly connected with the rear disc, the bearing (74) is sleeved on the rear end of the rotating shaft (73) and fixed on the rear side wall of the volute (2), and the output end of the driving assembly (6) is in transmission connection with the rear end of the rotating shaft (73);

the detection assembly (5) comprises two induction components (52), the two induction components (52) are arranged at the outer edge of the rear end of the rotating shaft (73) in a right angle, and a groove for mounting the two induction components (52) is formed in the rear side wall of the volute (2);

every response part (52) all includes and supports touch block (521), spring (522), connecting axle (523), top moves piece (524) and pressure sensor (525), conflict piece (521) are circular-arc structure and conflict with the outer wall of bearing (74), spring (522) cover establish on connecting axle (523) and its both ends respectively with support touch block (521) and top move piece (524) fixed connection, the top fixed connection of the bottom of top moving piece (524) and connecting axle (523), the output of pressure sensor (525) and the top contact of top moving piece (524).

2. The energy-saving centrifugal fan special for cement production according to claim 1, characterized in that: dustproof subassembly (3) are including filtering screen panel (31), mount pad (32), connecting block (33), bolt (34), nut (35) and packing ring (36), the outside wall fixed connection of connecting block (33) and filtering screen panel (31), and the top of connecting block (33) is located mount pad (32), mount pad (32) are the level and fix on the preceding lateral wall of spiral case (2), mount pad (32) are passed to the one end of bolt (34), connecting block (33) and packing ring (36) and with nut (35) lock fit, be equipped with the round hole that supplies bolt (34) to pass on connecting block (33).

3. The energy-saving centrifugal fan special for cement production according to claim 2, characterized in that: the cleaning assembly (4) comprises an installation cover (41), an electric push rod (42), a connecting seat plate (43) and a foam plate (44), the installation cover (41) is vertically fixed at the top of the volute (2), the electric push rod (42), the connecting seat plate (43) and the foam plate (44) are all arranged in the installation cover (41), a fixing seat (45) for fixing the electric push rod (42) is arranged on the inner top wall of the installation cover (41), the electric push rod (42) is vertically arranged, the output end of the electric push rod is fixedly connected with the connecting seat plate (43), and the foam plate (44) is bonded at the bottom of the connecting seat plate (43);

when cleaning operation needs to be carried out on the rotating assembly (7), the pulling assembly (8) is driven to slide by hands, opening of the through hole is achieved, the rotating assembly (7) is driven to rotate intermittently by the driving assembly (6), the foam plate (44) on the front end of the connecting seat plate (43) is driven to move in the vertical direction by the electric push rod (42), the foam plate (44) is enabled to move between the two blades (76) for wiping, after wiping operation of all the blades (76) is completed, the pulling assembly (8) is driven by the hands to slide, the through hole is enabled to be closed, water is filled into the volute (2), the driving assembly (6) drives the blades (76) to rotate, and all the blades (76) are cleaned.

4. The energy-saving centrifugal fan special for cement production according to claim 3, characterized in that: the molded line of each blade (76) is in a double-arc shape, and a plurality of blades (76) are uniformly distributed along the axis of the shaft sleeve (75).

5. The energy-saving centrifugal fan special for cement production according to claim 4, characterized in that: drive assembly (6) include driving motor (61), protection casing (62), hold-in range (63) and two synchronizing wheels, and driving motor (61) are the level and fix at the top of frame (1) and its output and a synchronizing wheel fixed connection, and another synchronizing wheel is fixed on the rear end of axis of rotation (73), and hold-in range (63) cover is established on the outside of two synchronizing wheels, and the outside of establishing hold-in range (63) is established to protection casing (62) cover.

6. The energy-saving centrifugal fan special for cement production according to claim 1, characterized in that: the detection assembly (5) comprises a rectangular cover (51), the rectangular cover (51) is fixed on the rear side wall of the volute (2) through screws, and the two sensing components (52) can be covered.

7. The energy-saving centrifugal fan special for cement production according to claim 1, characterized in that: pulling subassembly (8) are including closing plate (81) and arris lath (82), and the one end and closing plate (81) fixed connection of arris lath (82), the other end salient sets up in the preceding lateral wall of spiral case (2), and the top of spiral case (2) is equipped with spout (83) that supply closing plate (81) sliding movement.

8. The energy-saving centrifugal fan special for cement production according to claim 5, characterized in that: the driving motor (61), the electric push rod (42) and the two pressure sensors (525) are electrically connected with the controller (9), a water outlet (10) communicated with the inside of the volute (2) is formed in the bottom of the volute, and a plug (11) is arranged in the water outlet (10).