CN206121534U - Automatic dispensing device of control - Google Patents

Abstract

The utility model provides the utility model discloses an automatic control dispensing device, it includes: the precast box that connects gradually, mix evenly case and storage box precast box, mix evenly and all be provided with the agitator in case and the storage box, its characterized in that, still including set up in the medicine storage box of precast box entrance, constant pressure water supply device to and PLC electric cabinet, its bottom of medicine storage box is equipped with and is used for the frequency conversion screw rod conveyor that offers medicine, the electric cabinet is according to the water supply pressure automatic adjustment frequency conversion screw rod conveyor of dispense concentration and settlement. The utility model discloses an automatic dispensing device has improved the degree of accuracy and the stability of solution configuration to personnel intensity of labour has been reduced.

Description

An automatic control dispensing device

technical field

The utility model relates to the technical field of sewage treatment, in particular to an automatic control dispensing device suitable for preparing water-soluble solid particles or powder solutions.

Background technique

In the field of sewage treatment, in order to adjust the PH value of the liquid or coagulate the suspended matter in the sedimentation water, it is necessary to add chemicals for purification treatment. The drugs are generally an aqueous solution prepared with water and solid powder. In the prior art, human injection and manual stirring are generally used. The method is to add a certain amount of water first, and then add a certain amount of medicine. The labor load of the dispensing personnel is large, and manual operation is likely to lead to inaccurate dosing, unstable drug concentration control, poor dilution of the medicine, and insufficient dissolution. It leads to the generation of residue and sediment, which can easily cause pipeline blockage and sedimentation at the bottom of the device. Therefore, there is an urgent need for a dispensing equipment that automatically controls the dosage and concentration of the drug.

Utility model content

Therefore, the technical problem to be solved by the utility model is to overcome the defects in the prior art that the dispensing personnel have a large workload, the suitable dispensing equipment takes up a large space, the concentration control is unstable, and the dilution effect of the medicine is not good, so as to provide an automatic control dispensing device.

In order to achieve the above object, the technical solution of the utility model is: an automatic control dispensing device, which includes: a prefabricated box, a leveling box and a storage box connected in sequence, and the prefabricated box, the leveling box and the storage box are all provided with mixer;

It is characterized in that,

It also includes a drug storage box arranged at the entrance of the prefabricated box, a constant pressure water supply device, and a PLC electric control box;

The bottom of the drug storage box is provided with a frequency conversion screw conveying device for drug administration;

The electric control box automatically adjusts the frequency conversion screw conveying device according to the concentration of the medicine and the set water supply pressure.

Further, the first agitator with double impellers is installed in the prefabricated box, wherein the upper impeller is large and the lower impeller is small, and the two impellers form a cross; the mixing box and the storage box are respectively equipped with the first agitator with a single impeller. Second mixer and third mixer.

Further, the water inlet and outlet of the mixing box are provided with baffles, and the height of the two baffles is the same, water enters from the bottom of the prefabricated box, and flows out from the bottom of the mixing box.

Further, a drug intake port, a liquid level observation tube and a liquid level sensor are provided on the side of the storage box.

Further, the storage box is also provided with a high liquid level alarm point H1, a liquid dispensing stop point H2, a liquid dispensing start point H3 and an ultra-low liquid level alarm point H4, and the liquid level height is set by the storage tank. The liquid level sensor detects that the dispensing device starts dispensing medicine only when the liquid level of the storage tank is lower than the set point H3.

Further, the constant pressure water supply device is composed of a cut-off valve, a pressure regulating valve, and an electric valve in sequence, wherein the set pressure of the pressure regulating valve is lower than the pressure of municipal tap water supply.

Further, the electric control box is also used to control the valves in the automatic control dispensing device.

Further, the bottoms of the prefabricated box, the leveling box, and the storage box are all provided with drainage grooves.

The technical scheme of the utility model has the following advantages: automatic control of dosing is realized, the accuracy of solution configuration and the stability of wastewater treatment are improved, the labor intensity of staff is reduced, and work efficiency is improved.

Description of drawings

In order to more clearly illustrate the specific implementation of the utility model or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the specific implementation or the prior art will be briefly introduced below. Obviously, the following descriptions The accompanying drawings are some implementations of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative work.

Fig. 1 is the structural representation of automatic control dispensing device of the present utility model;

Explanation of reference signs:

1-prefabricated box; 2-mixing box; 3-storage box; 4-first agitator; 5-second agitator; 6-third agitator; 7-electric control box; 8-drug storage box; 9- Constant pressure water supply device; 10-first stop valve; 11-second stop valve; 12-pressure regulating valve; 13-electric valve; 14-frequency conversion screw conveying device

detailed description

The technical solutions of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the utility model, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Example 1

As shown in Figure 1, the utility model relates to an automatic control dispensing device, including a prefabricated box 1, a smoothing box 2, a storage box 3, an electric control box 7, a drug storage box 8, and a constant pressure water supply device 9. Wherein the prefabricated box 1 is equipped with a first agitator 4 with double impellers, wherein the upper impeller is large and the lower impeller is small, and the upper and lower impellers are cross-shaped impellers; the bottom of the prefabricated box 1 is also provided with a sewage groove. A smoothing box 2 is installed downstream of the prefabricated box 1, and baffles are provided at the water inlet and outlet of the smoothing box 2. Water enters from the bottom of the prefabricated box 1 and flows out from the bottom of the smoothing box 2. The two baffles are at the same height , an appropriate distance from the top of the box; the second agitator 5 is installed in the mixing box 2, and the bottom of the mixing box 2 is provided with a sewage groove. The downstream of the mixing box 2 is provided with a storage box 3, and a third agitator 6 is installed in the storage box 3; the bottom of the storage box 3 is provided with a sewage groove, and the side is provided with a drug intake port, a glass liquid level observation tube and a liquid level sensor. The constant pressure water supply device 9 is arranged on the inlet side of the prefabricated tank 1, and it is composed of a shut-off valve 11, a pressure regulating valve 12, and an electric valve 13 in sequence. The set pressure of the pressure regulating valve 12 is lower than the municipal tap water supply pressure. The medicine storage box 8 is arranged on the upper end of the prefabricated box 1 , and the bottom of the medicine storage box 8 is provided with a frequency conversion screw delivery device 14 for delivering medicine to the prefabricated box 1 . On the one hand, the electric control box 7 is used to realize the control of various operating parts and electric valves; The sensor sets high liquid level alarm point H1, stop dispensing liquid level point H2, start dispensing liquid level point H3 and ultra-low liquid level alarm point H4.

The working process of the automatic control dispensing device is: set the water inlet pressure through the pressure regulating valve 12 (if the water inlet pipe is connected to the municipal tap water pipe, then the set pressure is required to be lower than a certain value of the municipal tap water inlet pressure in order to stabilize the pressure. function), calculate the influent flow rate according to the pipe diameter, set the speed of the variable frequency screw conveying device 14 according to the required solution concentration requirements and the above flow rate, and control the dosing amount. Before dispensing, the system needs to perform self-inspection, wherein the self-inspection items include whether there is medicine powder in the medicine storage box 8, the exact position of the medicine liquid H in the storage box 3, and whether there is any failure in each device of the system. Working conditions, that is, the liquid level in the storage tank 3 is at or below the set point H3, and there is powder in the drug storage tank 8 and the system has no faults, then the system starts to operate normally; if the operating conditions are not met, the system sends a corresponding signal at Display on the electric control box 7 and transmit the corresponding signal to the control room.

The monitoring of the liquid level in the storage tank 3 is realized by a liquid level sensor. If the liquid level in the storage tank 3 is lower than the set point H3, the dispensing device starts dispensing medicine. Automatic operation can be selected on the electric control box 7, and manual operation can also be selected. Open the water inlet electric valve 13, the frequency conversion screw conveying device 14, and start the first agitator 4 and the second agitator 5; if the storage tank 3 liquid level If it is higher than the set point H2, stop dispensing, close the water inlet electric valve 13, the frequency conversion screw conveying device 14, and stop the first agitator 4 and the second agitator 5. In order to prevent the settled solution from settling, the third agitator 6 is always running. If the liquid level of the storage tank 3 is lower than the set point H4 or higher than the set point H1, an alarm command will be issued, which is deemed to be an intervention and needs to be eliminated. A first cut-off valve 10 and a second cut-off valve 11 are provided for the convenience of maintenance, and funnels are provided at the bottom of the prefabricated box 1, the mixing box 2, and the storage box 3, so that the residual solution in the box can be drained during maintenance.

The automatic control dispensing device of the utility model controls the water flow rate by adjusting the water pressure, and controls the dosing amount through the frequency converter to ensure the stability and controllability of the solution concentration; the solution preparation process is gradually completed through each solution tank, and the solution tank They are separated from each other, fully stirred and dissolved through the prefabricated box and the mixing box, especially the inlet and outlet of the mixing box are equipped with baffles to ensure that the solution flowing into the storage box is uniform; the prefabricated box is equipped with a stirrer, By setting two impellers with a large top and a small bottom in a cross shape, it is possible to achieve sufficient stirring while preventing the impeller shaft from swinging; the dispensing device is automatically controlled by PLC, and the PLC controls according to the set liquid level. When it is in the position, open the electric valve to add water, and start the frequency conversion screw dosing machine at the same time, and match the dosage of dry medicine with the amount of water to obtain accurate concentration. After reaching the high liquid level, stop the water inlet valve, frequency conversion screw conveyor, stop dispensing, and the system can set ultra-high liquid level and ultra-low liquid level alarm points to ensure safe operation.

Apparently, the above-mentioned embodiments are only examples for clear description, rather than limiting the implementation. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. And the obvious changes or variations derived therefrom are still within the scope of protection of the utility model.

Claims (8)

1. one kind automatically controls dispensation apparatus, and it includes：The precast box (1) that is sequentially connected, case (2) and storage box (3) are mixed well, The precast box (1), mix well in case (2) and storage box (3) and be provided with agitator；

Characterized in that,

It is also electric including the medicament storage case (8) for being arranged at the precast box (1) porch, constant pressure water supply equipment (9), and PLC Control case (7)；

Described its bottom of medicament storage case (8) is provided with the frequency conversion screw conveying device (14) for dispensing；

The electric cabinet (7) is according to pressure of supply water adjust automatically frequency conversion screw conveying device (14) with concentration and setting.

It is 2. according to claim 1 to automatically control dispensation apparatus, it is characterised in that：It is provided with the precast box (1) double First agitator (4) of impeller, wherein upper impeller is big, lower impeller is little, two impellers are in right-angled intersection；It is described to mix well case (2) and institute State the second agitator (5) and the 3rd agitator (6) that single impeller is separately installed with storage box (3).

It is 3. according to claim 2 to automatically control dispensation apparatus, it is characterised in that：The intake-outlet for mixing well case (2) It is highly identical that place is equipped with deflection plate at deflection plate, and two, and water is entered from the precast box (1) bottom, and from described case (2) is mixed well Flow out bottom.

It is 4. according to claim 3 to automatically control dispensation apparatus, it is characterised in that：Storage box (3) side sets gets it filled Agent mouth, liquid level observation pipe and liquid level sensor.

It is 5. according to claim 4 to automatically control dispensation apparatus, it is characterised in that：Height is additionally provided with the storage box (3) Liquid level warning point H1, stopping make up a prescription liquid level point H2, start make up a prescription liquid level point H3 and ultralow liquid level warning point H4, liquid level by Liquid level sensor detection in the storage box (3), the dispensation apparatus only when the liquid level of storage box (3) is less than set point H3 Start to make up a prescription.

It is 6. according to claim 1 to automatically control dispensation apparatus, it is characterised in that：The constant pressure water supply equipment (9) by cut Only valve (11), pressure regulator valve (12), motor-driven valve (13) are sequentially constituted, wherein the setting pressure of the pressure regulator valve (12) is less than municipal administration certainly Water pressure of supply water.

It is 7. according to claim 5 to automatically control dispensation apparatus, it is characterised in that：The electric cabinet (7) is additionally operable to control The each valve automatically controlled in dispensation apparatus.

It is 8. according to claim 1 to automatically control dispensation apparatus, it is characterised in that：The precast box (1), described mix well case (2), the bottom of the storage box (3) is equipped with pollution discharge groove.