Water adding amount control device in preparation process of photovoltaic glass production mixture

Abstract

The utility model discloses a water adding amount control device in a preparation process of a mixture for photovoltaic glass production, which comprises a drainage pipeline used for communicating a weighing water scale and a mixer, a drainage valve is arranged on the drainage pipeline close to the weighing water scale side, a control valve used for inputting compressed air into the drainage pipeline is arranged on the drainage pipeline behind the drainage valve, and the control valve is connected with the mixer. And the compressor is communicated with an external compressed air source through the control valve. A PLC program for pressurization and exhaust is added behind a PLC program of a drainage valve of a pneumatic actuator, and through combined application of a single-control electromagnetic valve on site, compressed air for pressurization, a one-way valve in the drainage pipeline and other devices, control over residual water in the drainage pipeline can be achieved, and the residual water in the drainage pipeline can be rapidly treated; and the purpose of accurately controlling the water adding amount of the mixture is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic glass production technical field especially a kind of water quantity control device in photovoltaic glass production mixed material preparation process. BACKGROUND

[0002] In the mixed material preparation process of photovoltaic glass production raw materials, a certain amount of water needs to be added to the mixed material, and its purpose and role are mainly: first, to moisten the material and improve the uniformity of the mixture;Second, to play a role in pre-melting and improve the melting efficiency;Third, to avoid stratification of the mixture during transportation, reduce the scattering of the mixture in the melting furnace and reduce the erosion of the kiln refractory material.

[0003] Currently, the water quantity of photovoltaic glass production raw material mixture is calculated by the batching PLC program according to the water content of each material and the water content process control requirements of the mixture. When the water balance enters the water adding program, the measured water quantity is added to the weighing water balance. When the batching PLC program enters the wet mixing state, the drain valve is opened, the measured water quantity in the water balance is drained into the mixer, so that the mixed material has a certain water content. The weighing water balance and the mixer are connected by a pipeline, a drain valve, a manual stop valve, a mist spray head and other devices to realize drainage. During the drainage process, after the weighing water balance is pressurized and the water is drained, the pneumatic actuator drain valve receives the PLC command to close, and there is still residual water in the long pipeline after the drain valve. This part of water is not under pressure and continues to enter the mixer under the action of gravity in a free manner.

[0004] The existing drainage method has the following disadvantages: first, after the pneumatic actuator drain valve is closed, there is still residual water in the drain pipeline;Second, it takes a long time for the residual water in the pipeline to completely enter the mixer (depending on the length of the pipeline), and even after the PLC program wet mixing is completed, the water in the pipeline is not completely drained;Third, the water drained from the weighing water balance cannot completely enter the mixer within the wet mixing time, which is not conducive to the precise control of the water content of the raw material mixture.

[0005] As a kind of glass mixed material stirring water device disclosed in patent CN209685568U, including stirring barrel, feed pipe, water inlet pipe, discharge pipe, controller and support, the stirring barrel is located in support, the feed pipe is located stirring barrel upper end one side, the water inlet pipe is located stirring barrel upper end other side, the discharge pipe is connected with the bottom of stirring barrel, the discharge pipe is provided with solenoid valve, the controller is located support outside, still include motor, carousel and shaft, three stirring crushing barrels are equipped in the stirring barrel, three the stirring crushing barrels are equipped with extrusion tooth respectively, the carousel is located stirring barrel upper, the carousel lower end is connected three gear rings by shaft, the carousel upper is connected with motor, the motor upper end is fixedly connected on support by connecting rod, the output shaft of motor lower end is fixedly connected with the carousel upper end;It also has the above problems. Utility model content

[0006] In view of the prior art deficiency, the utility model provides a kind of water quantity control device in photovoltaic glass production mixed material preparation process, to reach the purpose of accurate control of mixed material water quantity.

[0007] In order to solve the above technical problems, the technical scheme adopted by the utility model is:

[0008] The water quantity control device in photovoltaic glass production mixed material preparation process, including the drain pipe for being connected with the weighing water scale and mixing machine, the drain valve is arranged on the drain pipe on the side of weighing water scale, the control valve for inputting compressed air into the drain pipe is arranged on the drain pipe after drain valve, and the control valve is connected with the compressed air source outside.

[0009] Further:

[0010] The control valve is single-control solenoid valve.

[0011] The control valve is compressed air one-way valve.

[0012] The drain emergency manual bypass valve is arranged on the drain pipe.

[0013] The drain pipe is branched into the 1# mixing machine drain pipe and the 2# mixing machine drain pipe which are arranged side by side after the drain pipe.

[0014] The control valve is arranged before the drain pipe branch.

[0015] The communication pipe is arranged between the 1# mixing machine drain pipe and the 2# mixing machine drain pipe, and the control valve is arranged on the communication pipe.

[0016] Compared with prior art, the utility model has the following advantages:

[0017] The water adding amount control device in the photovoltaic glass production mixture preparation process is reasonable in design, the PLC program of the pneumatic actuator drain valve is increased with the PLC program of pressurized exhaust, and the combination of devices such as the on-site single control electromagnetic valve, the pressurized compressed air, and the one-way valve in the drain pipeline is used, so that the control of the residual water in the drain pipeline can be realized, the residual water in the drain pipeline can be quickly treated, and the purpose of accurate control of the water adding amount of the mixture is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The content expressed by each drawing of the present specification and the marks in the drawings are briefly described as follows:

[0019] Figure 1 It is a top view schematic diagram of the control device of the present application.

[0020] Figure 2 It is a three-dimensional schematic diagram of the control device of the present application.

[0021] In the drawings:

[0022] 1. 1# mixer inlet drain pipeline, 2. 2# mixer inlet drain pipeline, 3. 1# mixer manual drain valve, 4. 2# mixer manual drain valve, 5. compressed air one-way valve, 6. emergency manual bypass valve of drainage, 7. pneumatic execution drain valve, 8. water balance drain pipeline connecting flange. DETAILED DESCRIPTION

[0023] The specific embodiments of the present application are further described in detail below by comparing the drawings and the description of the embodiments.

[0024] As shown in Figure 1 and Figure 2 , the water adding amount control device in the photovoltaic glass production mixture preparation process comprises a drain pipeline for connecting a weighing water balance and a mixer, one end of the drain pipeline is connected with a drain pipe of the weighing water balance through a water balance drain pipeline connecting flange 8.

[0025] A drain valve is arranged on the drain pipeline close to the weighing water balance side, and a control valve for inputting compressed air into the drain pipeline is arranged on the drain pipeline behind the drain valve, and the control valve is connected with an external compressed air source in communication. The residual water in the drain pipeline is quickly drained into the mixer by introducing compressed air.

[0026] Further, the control valve is a single control electromagnetic valve; preferably, the control valve is a compressed air one-way valve 5. The drain valve is a pneumatic execution drain valve 7.

[0027] The utility model discloses a kind of photovoltaic glass production process, and it is applicable to the precise control of photovoltaic glass production raw material mixture water content, to reach the purpose of mixed material moisture stability;Programming is carried out in batching PLC program, the operation of pressurized purge valve is controlled, after the pneumatic actuator drain valve is closed, delay 2S opens exhaust valve and carries out pressurized pipeline purge, exhaust valve is closed after purging 20S, delay and purging time, can be adjusted according to actual needs.

[0028] Drainage pipeline rear branch has and sets up in parallel and enters 1# mixing machine drainage pipeline 1 and enters 2# mixing machine drainage pipeline 2. Control valve is arranged before drainage pipeline branch;Or, communication pipeline is arranged between entering 1# mixing machine drainage pipeline and entering 2# mixing machine drainage pipeline, and control valve is arranged on communication pipeline, and structure is compact.

[0029] Further, drainage pipeline is equipped with drainage emergency manual bypass valve 6;Entering 1# mixing machine drainage pipeline is equipped with entering 1# mixing machine manual drainage valve 3, and entering 2# mixing machine drainage pipeline is equipped with entering 2# mixing machine manual drainage valve 4.

[0030] The utility model discloses a kind of photovoltaic glass production process, and it is applicable to the precise control of photovoltaic glass production raw material mixture water content, to reach the purpose of mixed material moisture stability;Programming is carried out in batching PLC program, the operation of pressurized purge valve is controlled, after the pneumatic actuator drain valve is closed, delay 2S opens exhaust valve and carries out pressurized pipeline purge, exhaust valve is closed after purging 20S, delay and purging time, can be adjusted according to actual needs.

[0031] In batching control cabinet, the coil end of terminal row relay and on-site single control solenoid is connected to control line to form 24V loop, to control the opening and closing of on-site single control solenoid;Single control solenoid in water scale drain valve control box, air inlet end installs PU air pipe joint and inserts PU air pipe to access compressed air, air outlet end installs PU air pipe joint and connects to drainage pipeline one-way valve inlet end installs air pipe joint, air pipe is inserted into PU air pipe joint, one-way valve outlet end is welded on the pipeline after drainage valve. By input compressed air, the control of residual water in drainage pipeline can be realized, and the residual water in drainage pipeline is quickly handled, to achieve the purpose of precise control of mixed material water content.

[0032] The above is only the preferred embodiment of the utility model, and the above technical features can be combined to form multiple embodiments of the utility model.

[0033] The utility model is described above in conjunction with the drawings, obviously, the specific implementation of the utility model is not limited by the above mode, as long as the various non-essential improvements of the concept and technical scheme of the utility model are adopted, or the concept and technical scheme of the utility model is directly applied to other occasions without improvement, all are within the protection scope of the utility model.

Claims

1. A water addition control device for the preparation of a photovoltaic glass production mixture, comprising a drain pipe for connecting a weighing scale and a mixer, wherein a drain valve is provided on the drain pipe on the side near the weighing scale, characterized in that: The control valve is arranged on the drain pipe behind the drain valve and is used for inputting compressed air into the drain pipe.

2. The device for controlling the amount of water added to the mixture for producing photovoltaic glass according to claim 1, characterized in that: The control valve is a single control electromagnetic valve.

3. The device for controlling the amount of water added to the mixture for producing photovoltaic glass according to claim 1 or 2, characterized in that: The control valve is a compressed air one-way valve.

4. The water addition control device in the preparation process of photovoltaic glass production mixture as described in claim 1, characterized in that: An emergency manual bypass valve is arranged on the drain pipe.

5. The water addition control device in the preparation process of photovoltaic glass production mixture as described in claim 1, characterized in that: The drain pipe is branched into a first mixer inlet drain pipe and a second mixer inlet drain pipe which are arranged side by side.

6. The device for controlling the amount of water added to the mixture for producing photovoltaic glass according to claim 5, characterized in that it comprises a water tank (3) and a water pump (4) connected to the water tank (3). The control valve is arranged before the branch of the drain pipe.

7. The device for controlling the amount of water added to the mixture for producing photovoltaic glass according to claim 5, characterized in that it comprises a water tank (3) and a water pump (4) connected to the water tank (3). A communication pipe is arranged between the first mixer inlet drain pipe and the second mixer inlet drain pipe, and the control valve is arranged on the communication pipe.

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