CN217844748U

CN217844748U - Raw material is carried and is used wind pressure air regulation system

Info

Publication number: CN217844748U
Application number: CN202221690123.9U
Authority: CN
Inventors: 蒋明刚; 杨文渊; 李彦辉; 李建忠; 韩韬; 史庆振
Original assignee: Ningxia Saima Cement Co ltd
Current assignee: Ningxia Saima Cement Co ltd
Priority date: 2022-07-01
Filing date: 2022-07-01
Publication date: 2022-11-18
Anticipated expiration: 2032-07-01

Abstract

The application discloses a raw material conveying air pressure and air quantity adjusting system, when in use, air can be supplied to each homogenizing area through a main pipeline and a first branch pipeline by starting an air supply fan, power is provided for materials in each homogenizing area, and air pressure in the first branch pipeline can be detected in real time according to a first pressure transmitter so as to adjust the opening of a first electric valve, further realize control of air quantity in a homogenizing warehouse and ensure homogenizing effect and discharging stability of the materials; simultaneously, after the air supply fan is opened, air can be supplied to the bottom of the steady flow bin through the main pipeline and the second branch pipeline, so that materials in the second chute are smoothly and stably discharged, the air quantity in the second branch pipeline can be detected in real time according to the second pressure transmitter, the opening degree of the second electric valve is adjusted, the adjustment of the air quantity in the steady flow bin is realized, the blanking stability is ensured, the condition that the material quantity is suddenly changed is avoided, the stable calcining temperature in a follow-up calcining kiln is ensured, and the cement processing production efficiency is improved.

Description

Raw material is carried and is used wind pressure air regulation system

Technical Field

The application relates to the field of cement production, in particular to a raw material conveying air pressure and air quantity adjusting system.

Background

During the production of cement, the raw material is calcined in a calcining kiln, then the clinker is produced, and the clinker is used as the main raw material to produce cement. In the raw material calcining process, need carry the calcining kiln with the raw material through the cooperation between homogenization storehouse and stationary flow storehouse and the lifting machine, however, in the defeated material in-process in homogenization storehouse and stationary flow storehouse, the condition that the material volume is suddenly big or suddenly little often can appear, the current fluctuation that leads to the lifting machine during operation is great, can not stabilize the feed, the dashing is great, and then can cause the temperature variation of raw material when calcining in the calcining kiln big, it is poor to calcine the decomposition effect, can not reach the target of steady production high yield, can finally exert an influence to the processing production progress of cement.

SUMMERY OF THE UTILITY MODEL

The application provides a raw material is carried and is used wind pressure air regulation system has solved among the prior art and is carrying out the in-process carried the raw material through homogenization storehouse and stationary flow storehouse, carries the material volume to neglect for a long time, leads to calcining the interior temperature variation of kiln big, calcines the decomposition effect poor, influences the problem of cement processing production progress.

In order to solve the technical problem, the application provides a raw material is carried and is used wind pressure air regulation system, includes:

air supply fan and homogenization storehouse, be provided with a plurality of homogenization districts in the homogenization storehouse, each the discharge end in homogenization district all communicates there is first chute, each the common intercommunication of the discharge end of first chute has the stationary flow storehouse, the bottom in stationary flow storehouse has the measuring bin through second chute intercommunication, the bottom in measuring bin is provided with the rotor scale, the measuring bin is connected with the lifting machine through the third chute, upper portion one side and the bottom in homogenization storehouse all communicate there is first lateral conduit, the stationary flow storehouse is close to the position department intercommunication of second chute has second lateral conduit, first lateral conduit with the one end of second lateral conduit is connected with the trunk line jointly, the one end of trunk line with the air-out end intercommunication setting of air supply fan, be provided with first motorised valve and first pressure transmitter on the first lateral conduit, be provided with second pressure transmitter and second pressure transmitter on the second lateral conduit, first changer, first motorised valve with the second motorised valve all is connected with the controller electricity in the DCS control system.

Preferably, the number of said homogenization zones is 6;

correspondingly, the number of the first chutes is 6.

Preferably, the first branch pipe and the second branch pipe are supported and fixed by a fixing bracket.

Preferably, also includes;

and the alarm device is electrically connected with the controller.

Preferably, the alarm device is fixedly arranged on the fixed bracket.

Preferably, the alarm device is a buzzer.

Preferably, the air supply fan is a roots fan.

Preferably, a manual butterfly valve is further arranged on the main pipeline.

Preferably, each first chute is further provided with a control valve at a position close to the discharge end of the homogenizing zone, and the control valve is electrically connected with the controller.

Preferably, the number of the first pressure transmitter and the second pressure transmitter is multiple.

Compared with the prior art, the raw material conveying air pressure and air quantity adjusting system can supply air to all homogenizing areas in the homogenizing warehouse through the main pipeline and the first branch pipeline by starting the air supply fan to provide power for materials in all homogenizing areas when in actual use, and can detect the air pressure in the first branch pipeline in real time according to the first pressure transmitter to adjust the opening of the first electric valve, so that the air quantity in the homogenizing warehouse can be controlled, and the homogenizing effect of the materials and the stability of discharging are ensured; simultaneously, after the air supply fan is opened, can be through trunk line and second branch pipeline to the bottom air supply in stationary flow storehouse, make the material that is located the second chute discharge steadily smoothly, and, can carry out real-time detection to the amount of wind in the second branch pipeline according to second pressure transmitter, adjust the aperture to the second motorised valve, and then realize the regulation to the amount of wind that gets into stationary flow storehouse bottom, ensure the stability of unloading, avoid appearing the condition that the material volume is neglected to the great degree, ensure that the calcination temperature is stable in the follow-up calcination kiln, improve the calcination decomposition effect, improve cement processing production efficiency.

The beneficial effect of this application is as follows:

1. the air supply fan, the main pipeline, the first branch pipeline and the second branch pipeline are matched to supply air to the homogenization silo and the steady flow silo, so that the material blanking stability is improved;

2. the air quantity entering the homogenizing silo can be controlled and adjusted through the cooperation between the first pressure transmitter and the first electric valve, the air quantity entering the steady flow bin can be controlled and adjusted through the cooperation between the second pressure transmitter and the second electric valve, the blanking stability is ensured, and the situation that the blanking quantity is not large or small is avoided.

3. The metering of the discharge amount can be realized through the metering bin, and the problem of inconsistent material amount during one-time calcination is avoided. Affecting the calcination effect.

Drawings

In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments are briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without making any inventive changes.

Fig. 1 is a view of an air pressure and volume adjusting system for conveying raw meal provided by an embodiment of the present invention;

in the figure: the device comprises an air supply fan 1, a homogenizing warehouse 2, a homogenizing area 3, a first chute 4, a steady flow bin 5, a connecting rod 50, a second chute 6, a metering bin 7, a rotor scale 8, a third chute 9, a first branch pipeline 10, a second branch pipeline 11, a main pipeline 12, a first electric valve 13, a first pressure transmitter 14, a second electric valve 15, a second pressure transmitter 16, a fixed support 17, an alarm device 18, a manual butterfly valve 19 and a control valve 20.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings.

The core of this application is to provide a raw material is carried and is used wind pressure air regulation system, can solve among the prior art at the in-process that carries the raw material through homogenization storehouse and stationary flow storehouse, carry the material volume to neglect greatly and suddenly, lead to calcining the interior temperature variation of kiln big, calcine the decomposition effect poor, influence the problem of cement processing production progress.

Fig. 1 is a diagram of an air pressure and volume adjusting system for conveying raw meal according to an embodiment of the present invention, as shown in fig. 1.

Example 1

The utility model provides a raw material is carried and is used wind pressure amount of wind governing system, includes air feed fan 1, and air feed fan 1 can set up in the outside position department that is close to homogenization storehouse 2, and the structure and the theory of operation of air feed fan 1 all can refer to prior art. Homogenizing storehouse 2 is used for carrying out the homogenization to the raw meal, specifically adopts modes such as "tiling directly gets", "gravity mixes", "air agitation" to handle the raw meal that gets into, makes the raw meal composition undulant less, the process that tends to be even unanimous, what adopt in this application is the homogenization mode of "air agitation". In order to increase the homogenization effect, a plurality of homogenization zones 3 are usually provided in the homogenization silo 2, a first chute 4 communicating with the discharge end of each homogenization zone 3, through which first chute 4 the feeding of raw meal in the respective homogenization zone 3 is effected. In use, a corresponding discharge valve is arranged in each homogenizing zone 3, the discharge valves are not shown in the figure, the homogenizing zones 3 are uniformly distributed in the homogenizing chamber 2, and the structures of the homogenizing chamber 2 and the homogenizing zone 3 and the installation mode of the homogenizing zone 3 in the homogenizing chamber 2 can be seen in the prior art. In consideration of the convenience of design and cost, it is preferable that 6 homogenizing zones 3 are provided in the homogenizing silo 2, and correspondingly, 6 first chutes 4 are provided, the first chutes 4 being provided in one-to-one correspondence with the homogenizing silo 2.

The discharge end of each first chute 4 is communicated with a steady flow bin 5, raw materials discharged from each first chute 4 all fall into the steady flow bin 5, in actual operation, two first branch pipelines 10 are arranged, one first branch pipeline 10 is communicated with and arranged on one side of the upper portion of the homogenizing silo 2, namely arranged on a corresponding conveying pipeline of the homogenizing zone 3, one end of the other first branch pipeline 10 is communicated with and arranged at the discharge end of each homogenizing zone 3 in the homogenizing silo 2, the other ends of the two first branch pipelines 10 are communicated with the main pipeline 12, one end of the second branch pipeline 11 is communicated with and arranged at the position, close to the second chute 6, of the bottom of the steady flow bin 5, the other end of the second branch pipeline 11 is communicated with the main pipeline 12, the other end of the main pipeline 12 is communicated with and arranged with the air outlet end of the air supply fan 1, in operation, wind power is supplied to the homogenizing silo 2 through the two first branch pipelines 10 by the air supply fan 1, the effect of homogenizing materials is improved, the stability of discharging is ensured, and the stable discharging stability is ensured through the bottom of the second branch pipeline 11. The two first branch pipelines 10 are respectively provided with a first electric valve 13 and a first pressure transmitter 14, the second branch pipeline 11 is provided with a second electric valve 15 and a second pressure transmitter 16, the first pressure transmitter 14, the second pressure transmitter 16, the first electric valve 13 and the second electric valve 15 are respectively electrically connected with a controller in the DCS control system, the controller is not shown in the figure, the DCS control system is an existing control system, and the specific structure and the control principle can be seen in the prior art. During operation, the first pressure transmitter 14 detects the air pressure in the two first branch pipelines 10, and the controller controls and adjusts the opening of the first electric valve 13 according to the detected air pressure to control the air volume, so that the homogenization effect and the blanking stability of the materials in the homogenization areas 3 in the homogenization silo 2 are realized. The second pressure transmitter 16 detects the air pressure in the second branch pipeline 11, and the controller controls and adjusts the opening of the second electric valve 15 according to the detected air pressure to control the air volume, so that the blanking stability in the steady flow bin 5 is realized. The air pressure ranges in the first branch pipe 10 and the second branch pipe 11 can be set in advance according to the actual operation condition of the system, and the partial pressure range needs to be set according to the material amount required by calcination. The opening degree of the first electric valve 13 and the second electric valve 15 ranges from 0% to 100%. In order to avoid the first pressure transmitter 14 and the second pressure transmitter 16 from malfunctioning and affecting the homogenization and stable blanking of the material, preferably, a plurality of first pressure transmitters 14 and second pressure transmitters 16, in particular, 2

first pressure transmitters

14 and 2 second pressure transmitters 16, may be provided, one being used normally and the other being used as a backup.

The bottom of the steady flow bin 5 is communicated with a metering bin 7 through a second chute 6, namely, materials falling from the second chute 6 enter the metering bin 7, the materials are metered through a rotor scale 8 in the metering bin 7, and the required materials are conveyed to a lifter through a third chute 9, the structure of the rotor scale 8 can refer to the prior art, the lifter is not shown in the drawing, when the material amount in the steady flow bin 5 reaches a set value in actual operation, the materials in the homogenization areas 3 in the homogenization bins 2 can be controlled to temporarily stop conveying the materials into the steady flow bin 5, and the method can be realized by controlling the first electric valve 13 to be closed and stopping continuously supplying air into the homogenization bins 2. Preferably, the air supply fan 1 is a roots fan.

Example 2

A raw material conveying air pressure and volume adjusting system is characterized in that a first branch pipeline 10 and a second branch pipeline 11 are supported and fixed through a fixing support 17. The fixed support 17 is fixedly connected with the first branch pipeline 10 and the second branch pipeline 11, the operation stability of the first branch pipeline 10 and the second branch pipeline 11 can be improved, and in actual operation, the steady flow bin 5 is also fixedly connected with the fixed support 17 through the connecting rod 50. In order to prevent the first pressure transmitter 14 and the second pressure transmitter 16 from malfunctioning, and the wind pressure in the corresponding pipeline cannot be detected, thereby causing the unstable blanking condition, the method preferably further comprises the following steps; when the controller does not receive the wind pressure detected by the first pressure transmitter 14 or the second pressure transmitter 16, the alarm device 18 electrically connected with the controller can control the alarm device 18 to alarm and prompt related personnel to check in time, so that the stable operation of the system is ensured. Preferably, the alarm device 18 is fixedly arranged on the fixed bracket 17. Preferably, the alarm device 18 is a buzzer, by which the alarm effect can be improved. In order to facilitate timely control of the air supply pipeline when the system is started and stopped manually, preferably, a manual butterfly valve 19 is further arranged on the main pipeline 12, and the air supply pipeline (the first branch pipeline 10 and the second branch pipeline 11) is closed emergently through manual operation of the manual butterfly valve 19. In order to timely and efficiently shut off the falling discharge of the materials in each homogenizing zone 3, a control valve 20 is further arranged at the position, close to the discharge end of the homogenizing zone 3, of each first chute 4, the control valve 20 is electrically connected with a controller, and mainly when the materials in the steady flow bin 5 reach a set amount, the closing of each homogenizing zone 3 can be timely shut off by controlling the closing of the control valve 20 besides controlling the closing of the first electric valve 13.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice in the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope of the disclosure being indicated by the following claims.

It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The above-described embodiments of the present application do not limit the scope of the present application.

Claims

1. The utility model provides a raw material is carried and is used wind pressure air regulation system which characterized in that includes:

air supply fan (1) and homogenization storehouse (2), be provided with a plurality of homogenization districts (3) in homogenization storehouse (2), each the discharge end of homogenization district (3) all communicates with first chute (4), each the discharge end of first chute (4) communicates jointly and has stationary flow storehouse (5), the bottom in stationary flow storehouse (5) has measuring bin (7) through second chute (6) intercommunication, the bottom of measuring bin (7) is provided with rotor scale (8), measuring bin (7) are connected with the lifting machine through third chute (9), upper portion one side and the bottom of homogenization storehouse (2) all communicate and have first branch pipe (10), stationary flow storehouse (5) are close to the position department intercommunication of second chute (6) has second branch pipe (11), first branch pipe (10) with the one end of second branch pipe (11) is connected with common and is had first branch pipe (12), the one end of trunk pipe (12) with the air-out end intercommunication setting of air supply fan (1), be provided with first branch pipe (10) on first branch pipe (13) and second branch pipe (11) second branch pipe (15) pressure transmitter (16), second branch pressure transmitter (16) and pressure transmitter (16), be provided with second branch pipe (15) pressure transmitter (16), last pressure transmitter (16), second branch pipe (16) and pressure transmitter (16), pressure transmitter (16) and pressure transmitter (16) are provided with the one end, the first electric valve (13) and the second electric valve (15) are both electrically connected with a controller in a DCS control system.

2. The system for regulating the pressure and volume of raw meal delivery according to claim 1, wherein the number of homogenization zones (3) is 6;

correspondingly, the number of the first chutes (4) is 6.

3. The system for regulating the pressure and volume of raw meal delivery according to claim 1, wherein the first branch duct (10) and the second branch duct (11) are supported and fixed by a fixing bracket (17).

4. The raw meal delivery air pressure and volume adjusting system according to claim 3, further comprising a warning device (18) electrically connected to the controller.

5. The system for regulating the blast pressure and the blast volume for transporting raw meal as set forth in claim 4, wherein said warning device (18) is fixedly disposed on said fixed bracket (17).

6. The system for regulating the pressure and volume of raw meal delivery according to claim 4, wherein the alarm device (18) is a buzzer.

7. The raw meal conveying air pressure and volume adjusting system as claimed in claim 1, wherein the air supply fan (1) is a roots fan.

8. The system for regulating the pressure and volume of raw meal delivery according to claim 1, wherein a manual butterfly valve is further provided on the main conduit (12).

9. The system for regulating the wind pressure and volume for transporting raw meal as set forth in claim 1, wherein each of the first chutes (4) is further provided with a control valve (20) at a position near the discharge end of the homogenizing zone (3), and the control valve (20) is electrically connected to the controller.

10. The system for regulating the pressure and volume of raw meal delivery according to claim 1, wherein the number of the first pressure transmitter (14) and the second pressure transmitter (16) is plural.