CN211518036U - Water supply system of concrete mixing plant - Google Patents

Abstract

The utility model relates to a water supply system for a concrete mixing station, which comprises a water storage tank, a water tank, a water scale, a first water delivery pipe, a water pump, a second water delivery pipe and a first electromagnetic valve. The bottom of the water scale is provided with a first water outlet pipe and The second solenoid valve, the stirring main body is located under the first water outlet pipe, a support frame is arranged on one side of the stirring main body, an additive silo is arranged on the supporting frame, the bottom of the additive silo is provided with an inverted conical outlet, and the inverted conical outlet is provided with a first The metering valve, a mixing bucket is arranged under the inverted conical outlet, a third water delivery pipe is arranged between the mixing bucket and the water scale, a second metering valve is arranged on the third water delivery pipe, and a second water outlet pipe is arranged at the bottom of the mixing bucket. A third solenoid valve is arranged on the second water outlet pipe, and a stirring device is arranged in the mixing bucket. The water supply system of the concrete mixing station of the utility model is provided with an additive adding device, which is convenient for users to add water and additives to the mixing host, and controls the adding time and amount of the additives to ensure the qualified rate of concrete.

Description

A water supply system for a concrete batching plant

technical field

The utility model relates to the technical field of concrete mixing stations, in particular to a water supply system for concrete mixing stations.

Background technique

The function of the concrete mixer is to mix the sand, stone, cement, additives, admixtures and other materials added into the mixing tank into homogeneous concrete. An important factor for the productivity of the entire mixing plant, with the development of economy and technology, the market has higher and higher requirements for the proportioning accuracy of concrete. Whether the water supply system supplies water for the main body of the mixer in a timely and accurate manner has a greater impact on the mixing accuracy and efficiency. , If the water flow is too large, it will cause the proportion of concrete to be out of proportion, affecting the quality of concrete. The existing water supply system is difficult to control the accuracy of water, so the accuracy of the concrete proportioning accuracy cannot be guaranteed, and the existing water supply system is easy to freeze in winter, which affects the normal water supply of the water supply system. The water pump transports water to the water scale at a higher place through the upper water pipe. When the water scale reaches the given water volume, the water pump stops working. At this time, the water in the water pipe will flow back by its own weight. This process is not only for energy. A waste, it will also cause pressure shock to the water pump and reduce the service life of the water pump.

The existing Chinese patent with the application number of CN207630282U discloses a water supply system for a concrete mixing station, which includes an operating table and a mixing main engine, the bottom of the operating table is screwed with a pulley, and the outer wall of the pulley is screwed with a pulley baffle, The bottom inner wall of the operating table is screwed with a controller. First, confirm the amount of water that needs to be added to the stirring body. When more water needs to be added, the water in the water tank is sucked out by the first water pump, and the water in the storage tank is adjusted by the water scale. The water is weighed. When the water in the storage tank is close to the target weight, the first water pump is stopped, the second water pump is started, and then the water is delivered to the storage tank through the fourth water delivery pipe to realize the fine control of the water flow. The water in the water pipe flows back to the water pump, and the water flow is blocked by the first electric check valve and the second electric check valve, which reduces the pressure of the water pump and prolongs the service life of the water pump.

Although the above technical solution solves the problem that the accuracy of the water supply system is not high and the backflow of water in the water pipe will cause a pressure shock to the water pump and affect its service life, there is no additive adding device in the existing water supply system, and the time and dosage of the additive are added. It is extremely important in the concrete production process and will directly affect the performance of concrete.

Utility model content

In view of the deficiencies in the prior art, one of the purposes of the present utility model is to provide a water supply system for a concrete mixing station with an additive adding device, which is convenient for users to add water and additives to the mixing host, and control the adding time of the additives and the additives. quantity to ensure the qualified rate of concrete.

The above utility model purpose of the present utility model is achieved through the following technical solutions: a water supply system for a concrete mixing station, including a water storage tank, a water tank and a water scale, and a first water delivery pipe is arranged between the water storage tank and the water tank, so A water pump is arranged on the first water delivery pipe, a second water delivery pipe is arranged between the water tank and the water scale, a first solenoid valve is arranged on the second water delivery pipe, and a first solenoid valve is arranged on the bottom of the water scale. A water outlet pipe, the first water outlet pipe is provided with a second solenoid valve, the stirring main body is located below the first water outlet pipe, a support frame is arranged on one side of the stirring main body, and an additive bin is arranged on the support frame, so An inverted conical outlet is provided at the bottom of the additive bin, a first metering valve is provided at the inverted conical outlet, a mixing hopper is provided below the inverted conical outlet, an opening is provided on the top of the mixing hopper, and the mixing hopper is provided with an opening. A third water delivery pipe is arranged between the water scale and the water scale, a second metering valve is arranged on the third water delivery pipe, a second water outlet pipe is arranged at the bottom end of the mixing bucket, and a second water outlet pipe is arranged on the second water outlet pipe. The third solenoid valve, the stirring body is located below the second water outlet pipe, and the mixing bucket is provided with a stirring device.

By adopting the above technical solution, when the material in the stirring body needs to be stirred with water, the first solenoid valve is opened to make the second water delivery pipe conduct, so that the water in the water tank enters the water scale through the second water delivery pipe, and is stored in the water scale. Weigh the quality of the water inside. When the water in the water scale reaches the required amount, close the first solenoid valve to stop water supply; open the second solenoid valve to make the first water outlet pipe conduct, so that the water in the water scale passes through the first solenoid valve. The water outlet pipe enters the stirring body to stir the material. When it is necessary to add additives to the stirring body, open the first metering valve to quantitatively add the additives in the additive bin into the mixing hopper through the inverted conical outlet. When the additives are liquid, open the third solenoid valve to allow the liquid additives to pass through the second The water outlet pipe enters the mixing body; when the additive is solid powder, open the second metering valve to make the water in the water scale enter the mixing bucket through the third water delivery pipe, and start the stirring device to mix the additive and water in the mixing bucket evenly , and then open the third solenoid valve to make the additive solution enter the stirring body through the second water outlet pipe; when the water tank needs to be filled with water, start the water pump to pump the water in the storage tank into the water tank. To sum up, the water supply system of the concrete mixing station of the present invention is convenient for users to add water and additives to the mixing host, and can control the adding time and amount of additives to ensure the qualified rate of concrete.

In a preferred example of the present invention, the support frame can be further configured as follows: the support frame includes a support, a first placement plate is rotatably arranged on the support, and a second placement plate is arranged above the first placement plate, so The center of the first placing plate and the second placing plate is provided with a fixed shaft, the bottom end of the fixed shaft is coaxially fixed with a servo motor, the second placing plate is provided with a number of fixing holes in the circumference, and the additive bin It is vertically arranged between the fixing hole and the second placing plate, and the inverted conical outlet leaks out from the fixing hole.

By adopting the above technical solution, various additives need to be added in the concrete preparation process. The user needs to load different types of additives into different additive bins according to the addition sequence of the additives in the concrete preparation process, start the servo motor, and the output shaft of the servo motor rotates to drive The additive bins distributed in the circumferential direction are driven to rotate by the first placing plate, and different kinds of additives are added into the mixing bucket, which is convenient for users to use.

In a preferred example of the present invention, it can be further configured that: the support is provided with a fixing plate at the bottom of the servo motor.

By adopting the above technical solution, the servo motor is fixed on the fixed plate, so that the placement is more stable and the servo motor can work normally.

In a preferred example of the present invention, it can be further configured that: the opening of the mixing hopper is funnel-shaped.

By adopting the above technical solution, the funnel-shaped opening facilitates the alignment of the inverted conical outlet with the opening of the mixing hopper and facilitates the addition of additives.

In a preferred example of the present invention, it can be further configured as follows: the stirring device includes a drive motor arranged on one side of the mixing bucket, the output shaft of the drive motor is coaxially connected with a rotating shaft, and the rotating shaft is located inside the mixing bucket , the side wall of the rotating shaft is provided with a stirring blade.

By adopting the above technical scheme, when it is necessary to stir the water and additives in the mixing hopper evenly to make them fully dissolved, start the drive motor to make the output shaft rotate to drive the rotating shaft to rotate, and the rotating shaft rotates to drive the stirring blade to rotate to fully stir it.

In a preferred example of the present invention, it can be further configured as follows: a water outlet pipe is connected to the bottom end of the first water outlet pipe and the second water outlet pipe, and a water outlet pipe is evenly arranged on the side wall of the water outlet pipe close to the stirring main body. hole.

By adopting the above technical solution, the contact area between water or additives and the material in the stirring body is increased through the water outlet pipe and the water outlet hole, which facilitates the subsequent stirring of the stirring body.

In a preferred example of the present invention, it can be further configured as follows: a fourth water delivery pipe is arranged between the water tank and the water scale, a fourth solenoid valve is arranged on the fourth water delivery pipe, and the fourth water delivery pipe is provided with a fourth solenoid valve. The diameter of the water pipe is smaller than the diameter of the second water delivery pipe.

By adopting the above technical solution, when adding water to the water scale, the user first opens the first solenoid valve and the fourth solenoid valve to add water to the water scale through the second water delivery pipe and the fourth water delivery pipe. When the required value is approached, close the first solenoid valve, add water to the water scale only through the fourth water delivery pipe, and then close the fourth solenoid valve to complete the water adding process. Using this solution not only shortens the time required for users to add water to the water scale , and the amount of water added is more precise.

In a preferred example of the present invention, it can be further configured that: the bottom end of the cross section of the water storage tank is inclined toward the bottom end of the first water conveying pipe, and the bottom end of the first water conveying pipe is provided with a filter screen frame.

By adopting the above technical solution, the inclined arrangement of the bottom end of the water storage tank can facilitate the water pump to pump away the water at the bottom of the water storage tank through the first water delivery pipe, and the filter screen frame can prevent the first water delivery pipe from pumping away the sediment or debris in the water storage tank. The damage of the water pump can reduce the maintenance frequency of the water pump and reduce the maintenance cost.

To sum up, the present utility model includes at least one of the following beneficial technical effects:

1. When the material in the stirring main body needs to be mixed with water, open the first solenoid valve to make the second water pipe conduct, so that the water in the water tank enters the water scale through the second water pipe, and weighs the inside of the water scale. The quality of the water, when the water in the water scale reaches the required amount, close the first solenoid valve to stop water supply; open the second solenoid valve to conduct the first water outlet pipe, so that the water in the water scale enters the stirring through the first water outlet pipe The material is stirred in the main body. When it is necessary to add additives to the stirring body, open the first metering valve to quantitatively add the additives in the additive bin into the mixing hopper through the inverted conical outlet. When the additives are liquid, open the third solenoid valve to allow the liquid additives to pass through the second The water outlet pipe enters the mixing body; when the additive is solid powder, open the second metering valve to make the water in the water scale enter the mixing bucket through the third water delivery pipe, and start the stirring device to mix the additive and water in the mixing bucket evenly , and then open the third solenoid valve to make the additive solution enter the stirring body through the second water outlet pipe; when the water tank needs to be filled with water, start the water pump to pump the water in the storage tank into the water tank. To sum up, the water supply system of the concrete mixing station of the present invention is convenient for users to add water and additives to the mixing host, and can control the adding time and amount of additives to ensure the qualified rate of concrete.

2. A variety of additives need to be added in the concrete preparation process. The user needs to load different types of additives into different additive bins according to the addition order of the additives in the concrete preparation process, start the servo motor, and the output shaft of the servo motor rotates to drive through the first place. The plate drives the additive bins distributed in the circumferential direction to rotate, and adds different kinds of additives into the mixing bucket, which is convenient for users to use.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present utility model;

Figure 2 is a schematic diagram of the overall cross-sectional structure of the present invention.

In the figure, 1, storage tank; 11, first water pipe; 12, water pump; 13, filter frame; 2, water tank; 21, second water pipe; 22, first solenoid valve; 23, fourth water pipe; 24, the fourth solenoid valve; 3, the water scale; 31, the first outlet pipe; 32, the second solenoid valve; 4, the stirring body; 5, the support frame; The first metering valve; 54, the support; 541, the first placing plate; 542, the second placing plate; 543, the fixed shaft; 544, the fixed hole; 545, the servo motor; 546, the fixed plate; 6, the mixing bucket; 61 , the third water delivery pipe; 62, the second metering valve; 63, the second water outlet pipe; 64, the third solenoid valve; 65, the drive motor; 66, the rotating shaft; 67, the stirring blade; 68, the water outlet pipe; 69, the water outlet 7. Opening.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

As shown in FIG. 1 and FIG. 2 , it is a water supply system for a concrete mixing station disclosed by the utility model, including a water storage tank 1 , a water tank 2 and a water scale 3 , and a first water delivery pipe 11 is arranged between the water storage tank 1 and the water tank 2 , the first water pipe 11 is provided with a water pump 12, and the bottom end of the section of the water storage tank 1 is inclined toward the bottom end of the first water pipe 11, so that the first water pipe 11 can pump away the water at the bottom of the water storage tank 1, and the first water pipe The bottom end of 11 is provided with a filter screen frame 13 to prevent the first water pipe 11 from pumping away the sediment or debris in the water storage tank 1 and causing damage to the water pump 12, and a second water pipe 21 is provided between the water tank 2 and the water scale 3, A first solenoid valve 22 is provided on the second water delivery pipe 21, a fourth water delivery pipe 23 is provided between the water tank 2 and the water scale 3, and a fourth solenoid valve 24 is provided on the fourth water delivery pipe 23. The diameter is smaller than the diameter of the second water delivery pipe 21 , the bottom of the water scale 3 is provided with a first water outlet pipe 31 , the first water outlet pipe 31 is provided with a second solenoid valve 32 , and the stirring body 4 is located below the first water outlet pipe 31 . When water needs to be added in the water tank 2, start the water pump 12 to pump the water in the water storage tank 1 into the water tank 2; when the material in the stirring body 4 needs to be mixed with water, first open the first solenoid valve 22 and the fourth solenoid valve 24 to pass through The second water pipe 21 and the fourth water pipe 23 jointly add water to the water scale 3. When the water in the water scale 3 reaches the required value, the first solenoid valve 22 is closed, and the water scale is only connected to the water scale through the fourth water pipe 23. Add water in 3, and then close the fourth solenoid valve 24 to complete the water adding process. Using this solution not only shortens the time required for the user to add water to the water scale 3, but also the amount of water added is more accurate; finally, open the second solenoid valve 32 to make the first The water outlet pipe 31 is connected, so that the water in the water scale 3 enters the stirring main body 4 through the first water outlet pipe 31 to stir the material. A support frame 5 is arranged on one side of the stirring main body 4, an additive bin 51 is arranged on the support frame 5, an inverted conical outlet 52 is provided at the bottom of the additive bin 51, and a first metering valve 53 is provided at the inverted conical outlet 52. A mixing hopper 6 is provided below the outlet 52, and a funnel-shaped opening 7 is provided on the top of the mixing hopper 6 for adding additives. A third water delivery pipe 61 is arranged between the mixing hopper 6 and the water scale 3, and a There is a second metering valve 62, the bottom end of the mixing bucket 6 is provided with a second water outlet pipe 63, the second water outlet pipe 63 is provided with a third solenoid valve 64, the stirring body 4 is located under the second water outlet pipe 63, and the mixing bucket 6 is provided with There is a stirring device. When the additive needs to be added to the stirring body 4, the first metering valve 53 is opened to quantitatively add the additive in the additive bin 51 into the mixing hopper 6 through the inverted conical outlet 52. When the additive is liquid, the third metering valve is opened. The solenoid valve 64 makes the liquid additive enter the stirring body 4 through the second water outlet pipe 63; when the additive is solid powder, open the second metering valve 62 to make the water in the water scale 3 quantitatively enter the mixing hopper through the third water delivery pipe 61 6 , start the stirring device to mix the additive and water in the mixing bucket 6 evenly, and then open the third solenoid valve 64 so that the additive solution enters the stirring body 4 through the second water outlet pipe 63 .

As shown in FIG. 1 and FIG. 2 , the support frame 5 includes a support 54 , a first placing plate 541 is rotatably disposed on the support 54 , a second placing plate 542 is disposed above the first placing plate 541 , and the first placing plate 541 and the The center of the second placement plate 542 is provided with a fixed shaft 543, the bottom end of the fixed shaft 543 is coaxially fixed with a servo motor 545, and the support 54 is provided with a fixed plate 546 at the bottom of the servo motor 545 for fixing the servo motor 545. A plurality of fixing holes 544 are defined on the circumference of the plate 542 , the additive bin 51 is vertically arranged between the fixing holes 544 and the second placing plate 542 , and the inverted conical outlet 52 leaks out of the fixing holes 544 . The user needs to load different kinds of additives into different additive bins 51 according to the adding sequence of additives in the concrete preparation process, start the servo motor 545, and the output shaft of the servo motor 545 rotates to drive the circumferentially distributed additive bins through the first placing plate 541. 51 is rotated to add different kinds of additives into the mixing bucket 6 .

As shown in Figures 1 and 2, the stirring device includes a drive motor 65 arranged on one side of the mixing bucket 6, the output shaft of the drive motor 65 is coaxially connected with a rotating shaft 66, the rotating shaft 66 is located inside the mixing bucket 6, and the side wall of the rotating shaft 66 is provided with Stirring blade 67, when it is necessary to stir the water and additives in the mixing bucket 6 evenly to make it fully dissolved, start the driving motor 65 to make its output shaft rotate to drive the rotating shaft 66 to rotate, and the rotating shaft 66 rotates to drive the stirring blade 67 to rotate to fully stir it. .

As shown in Figures 1 and 2, a water outlet pipe 68 is connected to the bottom end of the first water outlet pipe 31 and the second water outlet pipe 63. The water outlet pipe 68 is evenly provided with water outlet holes 69 near the side wall of the stirring body 4 to increase the amount of water or additives. The contact area with the material in the stirring main body 4 is convenient for subsequent stirring by the stirring main body 4 .

The implementation principle of this embodiment is: when the water supply system of the concrete mixing station of the present invention is in use, when the material in the mixing main body 4 needs to be mixed with water, the first solenoid valve 22 and the fourth solenoid valve 24 are first opened through the second input valve. The water pipe 21 and the fourth water pipe 23 jointly add water to the water scale 3. When the water in the water scale 3 reaches the required value, the first solenoid valve 22 is closed, and only the fourth water pipe 23 is used to add water to the water scale 3. , and then close the fourth solenoid valve 24 to complete the water adding process. Using this solution not only shortens the time required for the user to add water to the water scale 3, but also adds more accurate water; finally, open the second solenoid valve 32 to make the first water outlet pipe 31 Conduction, so that the water in the water scale 3 enters the stirring main body 4 through the first water outlet pipe 31 to stir the material.

When the user needs to add additives into the mixing main body 4, the user needs to load different types of additives into different additive bins 51 according to the adding sequence of the additives in the concrete preparation process, start the servo motor 545, and the output shaft of the servo motor 545 rotates to drive the The first placing plate 541 drives the circumferentially distributed additive bins 51 to rotate. When the corresponding inverted conical outlet 52 is located directly above the opening 7, the first metering valve 53 is opened to measure the additive in the additive bin 51 through the inverted conical outlet 52. Add it into the mixing hopper 6, when the additive is liquid, open the third solenoid valve 64 to make the liquid additive enter the stirring body 4 through the second water outlet pipe 63; when the additive is solid powder, open the second metering valve 62 to make the water The amount of water in the scale 3 enters the mixing bucket 6 through the third water delivery pipe 61, and the stirring device is started to mix the additive and water in the mixing bucket 6 evenly, and then the third solenoid valve 64 is opened to allow the additive solution to pass through the second water outlet pipe 63. into the stirring body 4 .

The examples of this specific embodiment are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore: all equivalent changes made according to the structure, shape and principle of the present invention are not It should be covered within the protection scope of the present invention.

Claims (8)

1. A water supply system for a concrete mixing station, comprising a water storage tank (1), a water tank (2) and a water scale (3), and a first water delivery pipe (11) is arranged between the water storage tank (1) and the water tank (2). ), a water pump (12) is arranged on the first water delivery pipe (11), and a second water delivery pipe (21) is arranged between the water tank (2) and the water scale (3). The water pipe (21) is provided with a first solenoid valve (22), the bottom of the water scale (3) is provided with a first water outlet pipe (31), and the first water outlet pipe (31) is provided with a second solenoid valve ( 32), the stirring main body (4) is located below the first water outlet pipe (31), and is characterized in that: a support frame (5) is provided on one side of the stirring main body (4), and a support frame (5) is provided on the support frame (5). There is an additive bin (51), the bottom of the additive bin (51) is provided with an inverted conical outlet (52), the inverted conical outlet (52) is provided with a first metering valve (53), and the inverted conical outlet (52) is provided with a first metering valve (53). A mixing bucket (6) is arranged below the outlet (52), an opening (7) is arranged at the top of the mixing bucket (6), and a third input is arranged between the mixing bucket (6) and the water scale (3). A water pipe (61), the third water delivery pipe (61) is provided with a second metering valve (62), the bottom end of the mixing bucket (6) is provided with a second water outlet pipe (63), the second water outlet pipe (63) is provided with a third solenoid valve (64), the stirring body (4) is located below the second water outlet pipe (63), and a stirring device is provided in the mixing bucket (6). 2 . The water supply system for a concrete mixing station according to claim 1 , wherein the support frame ( 5 ) comprises a support ( 54 ), and the support ( 54 ) is rotatably provided with a first placing plate. 3 . (541), a second placing plate (542) is arranged above the first placing plate (541), and a fixed shaft (543) is arranged in the center of the first placing plate (541) and the second placing plate (542). ), the bottom end of the fixed shaft (543) is coaxially fixed with a servo motor (545), the second placing plate (542) is provided with a number of fixing holes (544) on the circumference, and the additive bin (51) is vertical It is arranged between the fixing hole (544) and the second placing plate (542), and the inverted conical outlet (52) leaks out of the fixing hole (544). 3 . The water supply system for a concrete mixing station according to claim 2 , wherein a fixing plate ( 546 ) is provided on the support ( 54 ) at the bottom of the servo motor ( 545 ). 4 . 4 . The water supply system for a concrete mixing station according to claim 1 , wherein the opening ( 7 ) of the mixing hopper ( 6 ) is funnel-shaped. 5 . 5 . The water supply system for a concrete mixing station according to claim 1 , wherein the mixing device comprises a driving motor ( 65 ) arranged on one side of the mixing bucket ( 6 ), and the driving motor ( 65 ) outputs the output The shaft is coaxially connected with a rotating shaft (66), the rotating shaft (66) is located inside the mixing bucket (6), and a stirring blade (67) is provided on the side wall of the rotating shaft (66). 6. A water supply system for a concrete mixing station according to claim 1, characterized in that: a water outlet pipe (68) is connected to the bottom end of the first water outlet pipe (31) and the second water outlet pipe (63), Water outlet holes (69) are evenly arranged on the side wall of the water outlet pipe (68) close to the stirring main body (4). 7. A water supply system for a concrete mixing station according to claim 1, characterized in that: a fourth water delivery pipe (23) is provided between the water tank (2) and the water scale (3), and the A fourth solenoid valve (24) is arranged on the fourth water delivery pipe (23), and the diameter of the fourth water delivery pipe (23) is smaller than the diameter of the second water delivery pipe (21). 8. A water supply system for a concrete mixing station according to claim 1, characterized in that: the bottom end of the cross section of the water storage tank (1) is inclined toward the bottom end of the first water pipe (11), and the A filter screen frame (13) is arranged at the bottom end of a water delivery pipe (11).

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