Fully automatic solution preparation device

Abstract

The utility model relates to the technical field of solution preparation devices, in particular to a fully automatic solution preparation device, comprising a box body, a dry powder dosing tank and a control system, wherein the dry powder dosing tank is located above the box body, the upper part of the dry powder dosing tank is a round tank and the lower part is a funnel with a bottom seal, and a straight short tube is arranged on the side wall of the funnel near the bottom; the box body is placed horizontally, a plurality of stirring paddles are arranged in the box body, a motor corresponding to the position of the stirring paddle is arranged on the upper wall of the box body, the stirring paddle passes through the upper wall of the box body and is connected to the motor, the motor is connected to the control system, a water inlet and a liquid outlet are arranged on the side wall of the box body, the water inlet is communicated with a water pipe through a pipeline, the liquid outlet is communicated with the outlet short tube, and an extended square tube is arranged on the top of the box body; an opening is arranged on the side wall of the square tube, a reducer is inserted into the opening, the reducer is connected to the water pipe, and a straight short tube on the side wall of the funnel near the bottom is inserted into the square tube, and the utility model reduces the wear of the stirring blade of the equipment by powder blocks during the stirring process.

Description

Technical Field

[0001] The utility model relates to the technical field of solution preparation devices, in particular to a full-automatic solution preparation device. Background Art

[0002] In industrial production, it is often necessary to prepare a large amount of solution, for example, using powders of PAM, PAC, activated carbon, dyes, flour, lime, sugar, etc. to prepare solutions. Most existing preparation devices include a box, a stirring paddle is arranged in the box, a dry powder dosing machine and a water injection port are arranged on the box to prepare the solution. However, this solution preparation device has obvious disadvantages. For example:

[0003] (1) During the mixing process of dry powder, agglomeration will occur, which will lead to lower solution quality. At the same time, the powder agglomerates will cause wear on the stirring blades of the equipment during the mixing process.

[0004] (2) The dry powder dosing device uses a funnel as an outlet to feed powder into the box. During the feeding process, the powder at the funnel outlet will adhere to the inner wall of the funnel, so some powder will not be able to flow smoothly to the downstream equipment, resulting in negative effects such as raw material loss and inaccurate solution concentration ratio.

[0005] (3) Most dry powder feeders use a vacuum pump to draw out the powder, which is very expensive.

[0006] (4) This preparation method mostly involves adding materials once and stirring to prepare the solution. Therefore, the solution preparation is batch-based, and there is a time interval between the preparation of each batch of solution. The time cost of solution preparation is too high.

[0007] (5) There is no waste liquid collection design, which makes subsequent treatment of the waste liquid inconvenient.

[0008] (6) The powder temperature cannot be controlled, resulting in the inability to meet the powder temperature control requirements during the preparation process of some solutions.

[0009] (7) There is no machine fault alarm device, and the operator cannot repair the machine in time.

[0010] Therefore, in order to overcome the above shortcomings, we designed a fully automatic solution preparation device. Utility Model Content

[0011] The technical problem to be solved by the utility model is to solve the deficiencies of the above-mentioned prior art and provide a fully automatic solution preparation device.

[0012] In order to solve the above technical problems, the present invention adopts the following technical scheme: a fully automatic solution preparation device, comprising a box, a dry powder dosing tank and a control system, wherein the dry powder dosing tank is located above the box, the upper part of the dry powder dosing tank is a round tank and the lower part is a funnel with a sealed bottom, and a straight short tube is provided on the side wall of the funnel near the bottom; the box is placed horizontally, and a plurality of stirring paddles are provided in the box, and a motor corresponding to the position of the stirring paddle is provided on the upper wall of the box, and the stirring paddle passes through the upper wall of the box and is connected to the motor, and the motor is connected to the control system, and a water inlet and a liquid outlet are provided on the side wall of the box, the water inlet is communicated with the water pipe through a pipeline, and the liquid outlet is communicated with the outlet short tube, and an extended square tube is provided on the top of the box; an opening is provided on the side wall of the square tube, and a reducer extends into the opening, and the reducer is connected to the water pipe, and the straight short tube of the funnel near the bottom side wall extends into the square tube.

[0013] The technical principle and technical effect of this scheme: the straight short tube at the bottom of the funnel puts the powder into the box from the position of the square tube. While the powder is being delivered, water is transported through the water pipe to the reducer and the pipe connected to the water inlet of the box. The water flow in the water pipe is affected by the diameter change of the reducer, resulting in changes in flow velocity and flow rate. The flow velocity increases and the flow rate decreases. The accelerated flow rate makes the water flow have a certain impact force. When the water is sprayed toward the square tube through the reducer, on the one hand, the impact force of the water flow itself will disperse the sticky powders. On the other hand, the water flow and part of the powder will be mixed for the first time to form a suspension, which reduces the agglomeration of the powder entering the box and reduces the wear of the mixing blades of the equipment by the powder blocks during the mixing process.

[0014] Afterwards, the suspension formed in the square tube and the powder passing through the square tube enter the box body and merge with the water entering the box body from the water inlet, and are stirred by the stirring paddle at the same time, thereby forming a uniform solution.

[0015] Furthermore, a vibrator and a motor for controlling the opening and closing of the vibrator are provided in the funnel, and the motor is connected to the control system.

[0016] Compared with the prior art, in the process of adding materials, the powder at the funnel outlet will adhere to the inner wall of the funnel, which will cause some powder to be unable to flow smoothly to the downstream equipment, resulting in negative effects such as raw material loss and inaccurate solution concentration ratio. The optimization point of this solution is that when the control system controls the motor to make the vibrator vibrate, the vibration will spread to the powder on the side wall of the dry powder feeding tank. This vibration can break the electrostatic force between the powders, thereby reducing the adhesion of the powder to the wall of the dry powder feeding tank, so that the powder slides off the wall of the dry powder feeding tank and flows smoothly into the square tube.

[0017] Furthermore, a long tube communicating with the round tank is provided on the side wall of the round tank, a fan for exhausting air to form negative pressure and a fan motor connected to the fan are provided on the top of the round tank, the fan motor drives the fan to exhaust air to form negative pressure so that the powder enters the round tank through the long tube, and the fan is connected to the control system.

[0018] Compared with the dry powder feeders in the prior art that mostly use the vacuum pump to draw the powder, which has the problem of high cost, the optimization point of this solution is: the control system controls the fan motor on the top of the round tank to drive the fan to rotate and draw air to form a negative pressure, so that the powder enters the round tank through the long tube. The fan motor, fan and long tube are common purchased equipment, while the vacuum pump is an industrial equipment with a high purchase cost. Using the fan motor, fan and long tube instead of the vacuum pump greatly saves the purchase cost of the original parts.

[0019] Furthermore, a temperature sensor is provided in the straight short tube, and the temperature sensor is connected to the control system.

[0020] Compared with the prior art which cannot control the powder temperature, there is a problem that the demand for powder temperature control during the configuration process of some solutions cannot be met. The optimization point of this solution is that the temperature sensor can measure the temperature of the powder in the straight short tube and transmit the temperature to the control system. When the temperature transmitted by the temperature sensor is different from the temperature set by the control system, the control system can alarm and stop the working fans, motors and vibrators.

[0021] Furthermore, a plurality of partitions are provided in the box body, which divide the box body into a primary solution chamber, a secondary solution chamber and a liquid storage chamber. The primary solution chamber, the secondary solution chamber and the liquid storage chamber are connected in an overflow manner, and the solution in the primary solution chamber can flow into the secondary solution chamber. The upper wall of the primary solution chamber is connected to the square tube, and the water inlet on the side wall of the box body is located in the primary solution chamber, and the water inlet is connected to the water pipe through a pipeline. The liquid outlet on the side wall of the box body is located in the liquid storage chamber, and the liquid outlet is connected to the liquid outlet pipe. An overflow hole is provided on the upper part of the outer wall of the liquid storage chamber, and sewage outlets are provided below the primary solution chamber, the secondary solution chamber and the liquid storage chamber. A stirring paddle is provided in the primary solution chamber and the secondary solution chamber, and the stirring paddles in the primary solution chamber and the secondary solution chamber are connected to the motor outside the box.

[0022] Compared with the batch-prepared solution configured after one-time addition and stirring in the prior art, there is a time interval between the preparation of each batch of solution, which leads to the problem of too high time cost of solution preparation. The optimization point of this scheme is: after the powder and water enter the box, the stirring paddle in the primary solution chamber starts to stir the solution driven by the motor. When the solution in the primary solution chamber reaches the height of the partition, the solution enters the secondary solution chamber by overflow. The stirring paddle in the secondary solution chamber starts to stir the solution driven by the motor. When the solution in the secondary solution chamber reaches the height of the partition, the solution enters the liquid storage chamber by overflow. The prepared solution flows out through the liquid outlet pipe on the liquid storage chamber. Through this design, this scheme improves the shortcoming of the prior art that it takes a long time to prepare solutions in batches, and greatly saves time cost.

[0023] Furthermore, it also includes a manifold, all sewage outlets are connected to the manifold through pipelines, an overflow pipe connected to the overflow hole is provided on the manifold, the pipe mouth of the overflow pipe passes through the pipe wall of the manifold and is connected to the manifold, and the manifold is also connected to a vent pipe, which discharges the liquid in a centralized manner.

[0024] Compared with the problem of inconvenience in subsequent treatment of waste liquid caused by the lack of waste liquid collection design in the prior art, the optimization point of this solution is: when it is necessary to prepare another solution, the waste liquid in the box can be discharged through the drain port, and the manifold collects the waste liquid. At the same time, when the solution in the liquid storage chamber reaches the overflow hole, the excess prepared solution flows into the manifold through the overflow pipe, and the liquid in the manifold is discharged uniformly through the vent pipe. Through this design, this solution makes up for the deficiency of the prior art that no waste liquid collection design is added, and facilitates the subsequent treatment of the waste liquid.

[0025] Furthermore, the liquid storage chamber is provided with a vertically placed high liquid level gauge, a low liquid level gauge and an extremely low liquid level gauge, as well as a high position alarm electrically connected to the high liquid level gauge, a low position alarm electrically connected to the low liquid level gauge, and an extremely low position alarm electrically connected to the extremely low liquid level gauge. The high liquid level gauge is located at the upper part of the liquid storage chamber, the low liquid level gauge is located at the lower part of the liquid storage chamber, the extremely low liquid level gauge is located below the low liquid level gauge, the high liquid level gauge is located lower than the overflow hole, and the high position alarm, the low position alarm and the extremely low position alarm are all connected to the control system.

[0026] Compared with the problem in the prior art that the operator cannot repair the machine in time due to the lack of a machine failure alarm device, the advantage of this solution is that when the solution in the liquid storage chamber reaches the high-level liquid level gauge, the high-level alarm will sound an alarm, and the operator can stop preparing the solution at this time; when the solution in the liquid storage chamber reaches the low-level liquid level gauge, the low-level alarm will sound an alarm, and the operator needs to turn on the control system, stirring motor, water pipes and other equipment to continue preparing the solution; after turning on the above-mentioned control system, stirring motor, water pipes and other equipment, the solution in the liquid storage chamber continues to drop until it reaches the extremely low-level liquid level gauge, and the extremely low-level alarm will sound an alarm, and the operator needs to re-check each link in this solution and repair the problematic links so that each link in this solution can smoothly prepare the solution.

[0027] Furthermore, a variable frequency screw feeder is provided in the dry powder feeding tank, and the variable frequency screw feeder includes a variable frequency motor and a screw shaft located in a straight short tube, and a spiral groove for accommodating powder is provided on the screw shaft.

[0028] The technical solution and principle of this scheme are: the variable frequency motor can adjust its own speed according to the signal of the control system. By adjusting the speed of the motor, the rotation rate of the screw shaft can be controlled. When the motor is started, the motor drives the rotation of the screw shaft. The screw shaft is responsible for material transportation. At the same time, the powder is contained in the spiral groove. This structure ensures that the material will not accumulate or get stuck during the transportation process. This design transports the material from the feed port to the discharge port, realizing continuous and stable material transportation.

[0029] Furthermore, a powder level sensor is provided in the lower part of the funnel.

[0030] When the powder level reaches the sensor position, the sensor will detect the corresponding signal change. This signal will be transmitted to the control system. After receiving the sensor signal, the control system will adjust the output frequency of the inverter according to the preset control logic to adjust the running speed of the screw feeder. By reducing or increasing the rotation rate of the screw shaft, the control system can ensure that the material feeding amount matches the set value.

[0031] The advantages of the utility model are as follows: 1. The square tube design connected with the reducer reduces the agglomeration of powder, improves the uniformity of the solution, and reduces the wear of the powder on the equipment during the stirring process. 2. The vibrator on the outer wall of the funnel reduces the adhesion of the powder at the outlet of the funnel on the inner wall of the funnel, so that the powder flows smoothly to the downstream equipment, thereby reducing the loss of raw materials. 3. The dry powder dosing tank absorbs the powder by replacing the vacuum pump with a fan and a long tube, which reduces the cost of purchasing original parts. 4. A partition is set in the box body to make the solution flow in an overflow manner, and the solution preparation can be automatically and continuously carried out, omitting the interval time of batch preparation of the solution, reducing the time cost of solution preparation. 5. A waste liquid pipeline is added to collect the waste liquid well, which is convenient for subsequent waste liquid treatment. 6. A powder temperature sensor is designed to meet the demand for powder temperature control during the solution configuration process. 7. The design of the high-level liquid gauge and the low-level liquid gauge is convenient for operators to overhaul the equipment. 8. The setting of the variable frequency screw feeder realizes precise feeding and improves the accuracy of the solution configuration ratio. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is the principle diagram of the utility model.

[0033] Figure 2 It is the front view of the utility model.

[0034] Figure 3 It is a side view of the utility model. DETAILED DESCRIPTION

[0035] The present invention is described in detail below with reference to the accompanying drawings and embodiments:

[0036] The figure marks in the drawings of the specification include: round tank 1, fan motor 2, funnel 3, vibrator motor 4, vibrator 5, powder level sensor 6, temperature sensor 7, straight short tube 8, square tube 9, stirring paddle motor 10, reducer 11, partition 12, sewage outlet 13, overflow hole 14, manifold 15, overflow pipe 16, outlet short pipe 17, low level meter 18, extremely low level meter 19, high level meter 20, frequency conversion motor 21, flow temperature sensor 22, flow meter 23, box 24, solenoid valve 25, water pipe spare pipeline 26, spiral shaft 27, control system 28, vent pipe 29, long pipe 30.

[0037] See also Figure 1 , Figure 2 , Figure 3As shown, a fully automatic solution preparation device includes a box 24, a dry powder dosing tank and a control system 28, the dry powder dosing tank is located above the box 24, the upper part of the dry powder dosing tank is a round tank 1 and the lower part is a funnel 3 with a bottom seal, and a straight short tube 8 is provided on the side wall of the funnel 3 near the bottom; the box 24 is placed horizontally, and a plurality of stirring paddles are provided in the box 24, and a motor corresponding to the position of the stirring paddle is provided on the upper wall of the box 24, and the stirring paddle passes through the upper wall of the box 24 and is connected to the stirring paddle motor 10, and the stirring paddle motor 10 is connected to the control system 28, and a water inlet and a liquid outlet are provided on the side wall of the box 24, the water inlet is communicated with the water pipe through a pipeline, and the liquid outlet is communicated with the outlet short tube 17, and an extended square tube 9 is provided on the top of the box 24; an opening is provided on the side wall of the square tube 9, and a reducer 11 extends into the opening, and the reducer 11 is connected to the water pipe, and the straight short tube 8 of the funnel 3 near the bottom side wall extends into the square tube 9.

[0038] The straight short tube 8 at the bottom of the funnel 3 throws the powder into the box 24 from the position of the square tube 9. While the powder is being delivered, water is transported to the reducer 11 and the pipeline connected to the water inlet of the box 24 through the water pipe. The water flow in the water pipe is affected by the diameter change of the reducer 11, resulting in changes in flow velocity and flow rate, the flow velocity increases and the flow rate decreases, and the accelerated flow rate makes the water flow have a certain impact force. When the water is sprayed toward the square tube 9 through the reducer 11, on the one hand, the impact force of the water flow itself will disperse the powders that stick together, and on the other hand, the water flow and part of the powder will be mixed for the first time to form a suspension, which reduces the agglomeration of the powder entering the box 24 and reduces the wear of the stirring blades of the equipment by the powder blocks during the stirring process.

[0039] Thereafter, the suspension formed in the square tube 9 and the powder passing through the square tube 9 enter the box 24 and merge with the water entering the box 24 from the water inlet, and are stirred by the stirring paddle to form a uniform solution.

[0040] A vibrator 5 and a vibrator motor 4 for controlling the opening and closing of the vibrator 5 are arranged in the funnel 3 , and the vibrator motor 4 is connected to the control system 28 .

[0041] When the control system 28 controls the vibrator motor 4 to work and make the vibrator 5 vibrate, the vibration will be transmitted to the powder on the side wall of the dry powder feeding tank. This vibration can break the electrostatic force between the powders, thereby reducing the adhesion of the powder to the wall of the dry powder feeding tank, causing the powder to slide off the wall of the dry powder feeding tank and flow smoothly into the square tube 9.

[0042] A long tube 30 communicating with the round tank 1 is provided on the side wall of the round tank 1. A fan for exhausting air to form a negative pressure and a fan motor 2 connected to the fan are provided on the top of the round tank 1. The fan motor 2 drives the fan to exhaust air to form a negative pressure so that the powder enters the round tank 1 through the long tube 30. The fan is connected to the control system 28.

[0043] The control system 28 controls the fan motor 2 on the top of the round tank 1 to drive the fan to rotate and draw air to form a negative pressure, so that the powder enters the round tank 1 through the long tube 30. The fan motor 3, the fan and the long tube 30 are commonly purchased equipment, while the vacuum pump is an industrial equipment with a high purchase cost. Using the fan motor 3, the fan and the long tube 30 instead of the vacuum pump greatly saves the purchase cost of the original parts.

[0044] A temperature sensor 7 is provided in the straight short tube 8 , and the temperature sensor 7 is connected to the control system 28 .

[0045] The temperature sensor 7 can measure the temperature of the powder in the straight short tube 8 and transmit the temperature to the control system 28. When the temperature transmitted by the temperature sensor 7 is different from the temperature set by the control system 28, the control system 28 can alarm and stop the working fan, motor, and vibrator 5.

[0046] A plurality of partitions 12 are provided in the box body 24, and the partitions 12 divide the box body 24 into a primary solution chamber, a secondary solution chamber and a liquid storage chamber. The primary solution chamber, the secondary solution chamber and the liquid storage chamber are connected in an overflow series manner, and the solution in the primary solution chamber can flow into the secondary solution chamber. The upper wall of the primary solution chamber is connected to the square tube 9, and the water inlet on the side wall of the box body 24 is located in the primary solution chamber, and the water inlet is connected to the water pipe through a pipeline. The liquid outlet on the side wall of the box body 24 is located in the liquid storage chamber, and the liquid outlet is connected to the liquid outlet pipe. An overflow hole 14 is provided on the upper part of the outer wall of the liquid storage chamber, and a sewage outlet 13 is provided below the primary solution chamber, the secondary solution chamber and the liquid storage chamber. A stirring paddle is provided in the primary solution chamber and the secondary solution chamber, and the stirring paddles in the primary solution chamber and the secondary solution chamber are connected to the stirring paddle motor 10.

[0047] After the powder and water enter the box body 24, the stirring paddle in the primary solution chamber starts to stir the solution driven by the stirring paddle motor 10. When the solution in the primary solution chamber reaches the height of the partition 12, the solution enters the secondary solution chamber by overflow. The stirring paddle in the secondary solution chamber starts to stir the solution driven by the stirring paddle motor 10. When the solution in the secondary solution chamber reaches the height of the partition 12, the solution enters the liquid storage chamber by overflow. The prepared solution flows out through the liquid outlet pipe on the liquid storage chamber. Through this design, the present scheme improves the time-consuming shortcoming of preparing solutions in batches in the prior art, and greatly saves time costs.

[0048] The pipeline outside the box body 24 also includes a manifold 15, all the sewage outlets 13 are connected to the manifold 15 through pipelines, and the manifold 15 is provided with an overflow pipe 16 connected to the overflow hole 14. The pipe mouth of the overflow pipe 16 passes through the pipe wall of the manifold 15 and is connected to the manifold 15. The manifold 15 is also connected to a vent pipe 29, which discharges the liquid in a centralized manner.

[0049] When it is necessary to prepare another solution, the waste liquid in the box can be discharged through the drain port 13, and the manifold 15 collects the waste liquid. At the same time, when the solution in the liquid storage chamber reaches the overflow hole 14, the excess prepared solution flows into the manifold 15 through the overflow pipe 16, and the liquid in the manifold 15 is uniformly discharged through the vent pipe 29. Through this design, the present scheme makes up for the deficiency of the prior art that no waste liquid collection design is added, and facilitates the subsequent treatment of the waste liquid.

[0050] A vertically placed high-level liquid gauge 20, a low-level liquid gauge 18 and an extremely low-level liquid gauge 19 are provided in the liquid storage chamber. The high-level liquid gauge 20 is located at the upper part of the liquid storage chamber, the low-level liquid gauge 18 is located at the lower part of the liquid storage chamber, and the extremely low-level liquid gauge 19 is located below the low-level liquid gauge 18. The high-level liquid gauge 20 is located lower than the overflow hole 14. The high-level liquid gauge 20 is electrically connected to the high-level alarm, the low-level liquid gauge 18 is electrically connected to the low-level alarm, and the extremely low-level liquid gauge 19 is electrically connected to the extremely low-level alarm. The high-level alarm, the low-level alarm and the extremely low-level alarm are all connected to the control system.

[0051] When the solution in the liquid storage chamber reaches the high-level liquid level gauge 20, the high-level alarm will sound an alarm, and the operator can stop preparing the solution at this time; when the solution in the liquid storage chamber reaches the low-level liquid level gauge 18, the low-level alarm will sound an alarm, and the operator needs to turn on the control system, stirring motor, water pipes and other equipment to continue preparing the solution; after turning on the above-mentioned control system, stirring motor, water pipes and other equipment, the solution in the liquid storage chamber continues to drop until it reaches the extremely low-level liquid level gauge 19, and the extremely low-level alarm will sound an alarm. The operator needs to re-check each link in this plan and repair the problematic links so that each link in this plan can smoothly prepare the solution.

[0052] A variable frequency screw feeder is provided in the dry powder feeding tank, and the variable frequency screw feeder includes a variable frequency motor 21 and a screw shaft 27 located in a straight short tube 8, and a spiral groove for accommodating powder is provided on the screw shaft 27. The variable frequency motor 21 can adjust its own speed according to the signal of the control system 28. By adjusting the speed of the motor, the rotation rate of the screw shaft 27 can be controlled. When the motor starts, the motor drives the rotation of the screw shaft 27. The screw shaft 27 is responsible for material transportation. At the same time, the powder is contained in the spiral groove. This structure ensures that the material will not accumulate or get stuck during the transportation process. This design transports the material from the feed port to the discharge port, realizing continuous and stable material transportation.

[0053] A powder level sensor 6 is provided in the lower part of the hopper 3. When the powder level reaches the sensor position, the sensor will detect the corresponding signal change. This signal will be transmitted to the control system 28. After receiving the signal from the sensor, the control system 28 will adjust the output frequency of the frequency converter according to the preset control logic, thereby adjusting the running speed of the screw feeder. By reducing or increasing the rotation rate of the screw shaft 27, the control system 28 can ensure that the material feeding amount matches the set value.

[0054] In this embodiment, a solenoid valve 25 and a pressure display gauge are installed on the water pipe. The solenoid valve 25 is used to control the opening and closing of the water pipe. The solenoid valve 25 is connected to the control system 28. Ball valves are installed on the water pipe and located in the front and rear directions of the solenoid valve 25 along the water flow direction. In order to ensure the smooth preparation of the solution, a water pipe spare pipe 26 connected to the water pipe is installed on the water pipe. One end of the water pipe spare pipe 26 is located at the front end of the ball valve in the front direction, and the other end is located at the rear end of the ball valve in the rear direction. In addition, a pressure display gauge is installed on the water pipe. The pressure display gauge is close to the water inlet of the water pipe and is used to monitor the pressure in the water pipe.

[0055] In addition to the powder level sensor 6, this embodiment also designs a flow meter 23 installed on the water pipe, and a flow temperature sensor 22 connected to the flow meter 23. The flow meter 23 is located between the reducer and the front directional ball valve, and the flow temperature sensor 22 is connected to the control system 28.

[0056] The flow meter 23 displays the water flow in the water pipe, and the flow temperature sensor 22 transmits the temperature signal and flow signal of the water flow in the water pipe to the control system 28. After receiving the signal, the control system 28 can open and close the water pipe according to the set temperature and flow. Through the cooperation of the flow temperature sensor 22 and the temperature sensor 7 and the powder sensor in the control system, the solution ratio can be accurately controlled to obtain a solution of a preset concentration.

[0057] The above are only embodiments of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution are not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the technical solution of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A fully automatic solution preparation device, comprising a box, a dry powder dosing tank and a control system, characterized in that: The dry powder dosing tank is located above the box body, the upper part of the dry powder dosing tank is a round tank and the lower part is a funnel with a sealed bottom, and a straight short tube is provided on the side wall of the funnel near the bottom; the box body is placed horizontally, and a plurality of stirring paddles are provided in the box body, and a motor corresponding to the position of the stirring paddle is provided on the upper wall of the box body, and the stirring paddle passes through the upper wall of the box body and is connected to the motor, and the motor is connected to the control system, and a water inlet and a liquid outlet are provided on the side wall of the box body, the water inlet is communicated with the water pipe through a pipeline, and the liquid outlet is communicated with the outlet short tube, and an extended square tube is provided on the top of the box body; an opening is provided on the side wall of the square tube, and a reducer extends into the opening, and the reducer is connected to the water pipe, and the straight short tube of the funnel near the bottom side wall extends into the square tube.

2. The fully automatic solution preparation device according to claim 1, characterized in that: A vibrator and a motor for controlling the opening and closing of the vibrator are arranged in the funnel, and the motor is connected to the control system.

3. The fully automatic solution preparation device according to claim 1, characterized in that: A long tube communicating with the round tank is arranged on the side wall of the round tank, a fan for exhausting air to form negative pressure and a fan motor connected to the fan are arranged on the top of the round tank, the fan motor drives the fan to exhaust air to form negative pressure so that the powder enters the round tank through the long tube, and the fan is connected to the control system.

4. The fully automatic solution preparation device according to claim 1, characterized in that: A temperature sensor is arranged in the straight short tube, and the temperature sensor is connected to the control system.

5. The fully automatic solution preparation device according to claim 1, characterized in that: A plurality of partitions are arranged in the box body, which divide the box body into a primary solution chamber, a secondary solution chamber and a liquid storage chamber. The primary solution chamber, the secondary solution chamber and the liquid storage chamber are connected in an overflow manner, and the solution in the primary solution chamber can flow into the secondary solution chamber. The upper wall of the primary solution chamber is connected to a square tube, and the water inlet on the side wall of the box body is located in the primary solution chamber, and the water inlet is connected to a water pipe through a pipeline. The liquid outlet on the side wall of the box body is located in the liquid storage chamber, and the liquid outlet is connected to a liquid outlet pipe. An overflow hole is arranged on the upper part of the outer wall of the liquid storage chamber, and sewage outlets are arranged below the primary solution chamber, the secondary solution chamber and the liquid storage chamber, and a stirring paddle is arranged in the primary solution chamber and the secondary solution chamber.

6. The fully automatic solution preparation device according to claim 5, characterized in that: It also includes a manifold, all sewage outlets are connected to the manifold through pipelines, an overflow pipe connected to the overflow hole is provided on the manifold, the pipe mouth of the overflow pipe passes through the pipe wall of the manifold and is connected to the manifold, and the manifold is also connected to a vent pipe, which discharges the liquid in a centralized manner.

7. The fully automatic solution preparation device according to claim 5, characterized in that: The liquid storage chamber is provided with a vertically placed high liquid level gauge, a low liquid level gauge and an extremely low liquid level gauge, as well as a high position alarm electrically connected to the high liquid level gauge, a low position alarm electrically connected to the low liquid level gauge, and an extremely low position alarm electrically connected to the extremely low liquid level gauge. The high liquid level gauge is located at the upper part of the liquid storage chamber, the low liquid level gauge is located at the lower part of the liquid storage chamber, the extremely low liquid level gauge is located below the low liquid level gauge, the high liquid level gauge is located below the overflow hole, and the high position alarm, the low position alarm and the extremely low position alarm are all connected to the control system.

8. The fully automatic solution preparation device according to claim 1, characterized in that: The dry powder dosing tank is provided with a variable frequency screw feeder, which comprises a variable frequency motor and a screw shaft located in a straight short tube, and the screw shaft is provided with a spiral groove for accommodating powder.

9. The fully automatic solution preparation device according to claim 1, characterized in that: A powder level sensor is arranged in the lower part of the funnel.

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