CN202778303U - Up-down double circulation stirring and dispensing device - Google Patents

Abstract

The upper and lower double-circulation stirring dispensing device involves the technical field of sewage treatment mixing and dispensing, mainly including dispensing tank, liquid medicine storage tank, circulating stirring pump pipe, solenoid valves A, B, C, liquid medicine storage tank discharge pipe, and liquid medicine delivery pipe , rotameter, centrifugal pump, stirring nozzle; it is characterized in that one side of the bottom of the dispensing tank is connected to the pump pipe for circulating stirring, and one end of the pump pipe for circulating stirring is connected to the discharge pipe of the liquid medicine storage tank and connected to the centrifugal pump; the pump for circulating stirring is connected The upper end of the tube is in the shape of a horizontal arc, and the nozzle is located at 2/3 of the total height of the dispensing tank. Stirring tube, the stirring tube is connected to the stirring nozzle, and the solenoid valve D is installed on the stirring tube; the upper side of the dispensing tank is equipped with a liquid level sensor, and the center of the bottom is connected to the emptying pipe; the liquid medicine storage tank is connected to the discharge pipe of the liquid medicine storage tank. The utility model has the characteristics of one pump for two purposes, saving equipment investment for pumps and mechanical stirring, easy maintenance and simple operation.

Description

Up and down double circulation stirring dispensing device

technical field

The utility model relates to an upper and lower double-circulation stirring and dispensing device, which relates to the technical field of pump stirring and dispensing in sewage treatment equipment. the

Background technique

The mixing and dispensing method of the agitator driven by the variable speed of the motor that is generally sold on the market and is being used in general sewage stations. the

The mixing form is mainly composed of a stirring motor, a high transmission ratio reducer, a mixing blade, a dispensing tank, a support stand, etc. The high transmission ratio reducer generally adopts a cycloidal pinwheel reducer, which has a complex structure and high manufacturing precision requirements , high cost, difficult maintenance, and high technical requirements for maintenance workers. Generally, when this kind of reducer fails, it will be replaced with a new one, resulting in high maintenance and repair costs. the

The dispensing process of sewage treatment is to lead the tap water pipe to the top of the dosing device after it is installed in the sewage station. When working, measure the coagulant dosage according to the required configuration concentration, and first add the required corresponding amount of coagulant to the In the dispensing tank, turn on the tap water and add it to the dispensing tank, close the tap water valve when the water reaches the liquid level scale line on the dispensing tank, then turn on the stirring motor to drive the blades to stir, after stirring evenly, drain all the liquid into the liquid medicine storage tank, and then Carry out the next cycle and wait for the next discharge into the chemical liquid storage tank; the configured chemical liquid in the chemical liquid storage tank is output to the required units of the sewage treatment facility through the metering pump. Therefore, the idle rate of the stirring motor is high. For example, when the sewage treatment adopts the air flotation treatment process, generally a box of liquid medicine is stirred, the stirring motor needs to work for 1 hour, and a box of liquid medicine can be used for the metering pump to work for 8 to 12 hours. The idle rate of the stirring motor is 87.5% to 91.7%. the

The mechanical stirring driven by motor stirring has complex structure, high manufacturing precision requirements, high cost, difficult maintenance, high technical level requirements for maintenance workers, long stirring time, high energy consumption, and high equipment idle rate. the

Application number: 200910039415.9 Chinese patent application for automatic dosing jet mixing and pump stirring sewage treatment system literature discloses a dispensing device with a pump as stirring power, but the device has a defect: the dispensing water comes from a sewage tank, and the sewage will make the prepared The medicine liquid produces flocculation and precipitation, which reduces the efficacy of the medicine, and the flocculation and precipitation are transported and circulated by the pump, and the flocculated dirt is re-stirred to lose the effect of flocculation. the

Contents of the invention

In order to overcome the above-mentioned defects in the prior art, the purpose of this utility model is to provide an upper and lower double-circulation stirring dispensing device which reduces the energy consumption of mechanical stirring, saves the investment of mechanical stirring, has high efficiency, is convenient for maintenance, and can continuously dispense medicines. The technical scheme of the utility model is as follows:

Up and down double-circulation stirring dispensing device, including dispensing tank 1, liquid level sensor 2, console 3, emptying pipe 4, emptying valve 5, liquid medicine storage tank 6, circulation stirring pump pipe 7, solenoid valve A8, liquid medicine Storage tank discharge pipe 9, solenoid valve B10, liquid medicine delivery pipe 11, rotameter 12, solenoid valve C13, pump inlet pipe 14, centrifugal pump 15, pump outlet pipe 16, solenoid valve D17, stirring pipe 18, discharge Pipe 19, discharge valve 20, stirring nozzle 21, dispensing tank 22, tightening nut 31, tightening washer 32, stirring nozzle inlet pipe 33, stirring nozzle outlet pipe 34, tapered pipe thread 35, ordinary fine thread 36; It is characterized in that the dispensing tank 22 is connected to the circulating agitation pump pipe 7, and the circulating agitating pump pipe 7 is respectively connected to the discharge pipe 9 of the liquid medicine storage tank and the pump inlet pipe 14; the bottom side of the dispensing tank 22 is connected to the discharge pipe 19, so The discharge pipe 19 described above is connected to the liquid medicine storage tank 6, and the discharge valve 20 is equipped with on the discharge pipe 19; 18 is equipped with a solenoid valve D17; the medicinal liquid delivery pipe 11 is equipped with a rotameter 12 and a solenoid valve C13; the upper side of the dispensing tank 22 is equipped with a liquid level sensor 1, and the center of the bottom is connected to the emptying pipe 4 to empty The tube 4 is equipped with an emptying valve 5; the liquid medicine storage tank 6 is connected with the discharge pipe 9 of the liquid medicine storage tank. the

The upper end of the circulating stirring inlet pump pipe 7 is in the shape of a horizontal arc, the circular arc is the concentric circle of the dispensing tank 22, and the nozzle is located at 2/3 of the total height of the dispensing tank, and the circulating stirring inlet pump pipe 7 is equipped with a solenoid valve A8 . the

The liquid medicine delivery pipe 11 is equipped with a rotameter and a solenoid valve C13. the

A discharge valve 20 is installed on the discharge pipe 19 . the

The characteristic of the stirring nozzle is that the angle between the inlet pipe 33 of the stirring nozzle and the center line of the outlet pipe of the stirring nozzle 34 is 60°. the

The stirring nozzle 21 is connected with the dispensing tank 22 through the ordinary fine thread 36, and the dispensing tank 22 has a sealing gasket 32, a tightening thread nut 31 and a taper pipe thread 35 and the dispensing tank 22 are tightly fixed outside the wall of the dispensing tank 22. the

The pump inlet pipe 14 is respectively connected to the discharge pipe 9 of the liquid medicine storage tank and the pump pipe 7 for circulating stirring. the

The discharge pipe 9 of the liquid medicine storage tank is equipped with a solenoid valve B10. the

The upper and lower double circulation stirring dispensing process is characterized in that it includes the following steps:

A. Weigh a certain amount of coagulant as needed

B. When tap water is added to the dispensing tank 22, the coagulant required for sewage treatment is added at the same time, and the water is added to the liquid level sensor 1, and the water addition is stopped;

C. Close the solenoid valve B10, open the solenoid valve A8, close the solenoid valve C13, open the centrifugal pump 15, open the solenoid valve D17, and the supernatant in the dispensing tank 22 is stirred into the pump pipe 7, the pump inlet pipe 14, and the centrifugal pump through circulation 15. The stirring tube 18 and the stirring nozzle 21 enter the dispensing tank 22, because the angle between the inlet pipe 33 of the stirring nozzle and the center line of the outlet pipe of the stirring nozzle 34 is 60°. The coagulant is stirred, and at the same time, it circulates and stirs the liquid in the same clockwise direction as the suction direction of the pump pipe 7 and the spray nozzle 21, and the upper and lower sides work together to stir the materials in the dispensing tank 22. the

D. Close the centrifugal pump 15, solenoid valve A8 and solenoid valve D17 after the coagulant is stirred evenly and fully dissolved; open the discharge valve 20 and the medicinal liquid enters the medicinal liquid storage tank 6;

E. When liquid medicine is needed, close solenoid valve A8, solenoid valve D17, open solenoid valve B10, turn on centrifugal pump 15, open solenoid valve C13, and liquid medicine passes through liquid medicine storage tank discharge pipe 9, pump inlet pipe 14, and pump outlet pipe 16 The rotameter 12 and the delivery pipe 11 quantitatively deliver the liquid medicine to the required units of the sewage treatment facility. the

F. When cleaning, open the emptying valve 5 at the bottom of the dispensing tank 22 to discharge the residue and clean. the

The stirring time described in step B is 15-25 min. the

Beneficial effect

One centrifugal pump can realize the operation task of dispensing and transporting the liquid medicine to the required unit of the sewage treatment facility after the dispensing is completed, one pump for two purposes, saving equipment investment;

The upper end of the circulation stirring pump pipe 7 is a horizontal arc tube, and the arc is the concentric circle of the dispensing tank 22. The suction direction is the same as that of the clockwise direction of the liquid flowing from the stirring nozzle 21, so as to reduce the suction resistance. The stirring nozzle 21 and the circulating stirring inlet pump pipe 7 located at the top of the dispensing tank 22 work together to improve the stirring efficiency. the

The discharge pipe 9 of the liquid medicine storage tank is equipped with a solenoid valve B10, and the circulation stirring pump pipe 7 is equipped with a solenoid valve A8, so that stirring and dispensing and supplying medicine liquid to the sewage treatment sedimentation tank are carried out alternately, and the utilization of the centrifugal pump 15 is improved. rate, reduce the idle rate of the pump;

The upper end of the circulating stirring pump pipe 7 is horizontal to prevent solid particles from falling into the pipe to block the pipeline when feeding. The coagulant is sucked into the centrifugal pump 15 to prevent the plastic pump from being overloaded and burning out the motor. the

Described agitation nozzle 21 is characterized in that the angle between the center line of agitation nozzle inlet pipe 33 and agitation nozzle 34 outlet pipes is 60°, and the swirling fluid formed in the dispensing tank 22 by agitation nozzle 21 is used to agitate the liquid medicine, which can Make the coagulant that enters dispensing tank 22 rotate with water in dispensing tank 22, promote the dissolving of sewage treatment coagulant;

Save equipment investment for mechanical stirring;

The setting of the liquid medicine storage tank 6 of the auxiliary equipment can ensure that the medicine liquid can be transported to the sewage treatment sedimentation tank at any time;

Auxiliary equipment liquid level sensor 1, which can realize automatic control of adding water;

Dispensing tank 22 bottom centers are connected with emptying pipe 8, and emptying valve 5 is housed on the emptying pipe 8, which is conducive to emptying and cleaning of dispensing tank 22. the

The stirring nozzle 21 is connected with the dispensing tank 22 through the common fine thread 36, and the dispensing tank 22 has a sealing washer 32, a tightening thread nut 31 and a tapered pipe thread 35 which are tightly fixed with the dispensing tank. Easy to install and maintain. the

Description of drawings

Figure 1: Front view of the upper and lower double circulation stirring dispensing device;

Figure 2: Top view of the upper and lower double circulation stirring dispensing device;

Figure 3: Partial enlarged view of the mixing nozzle;

Figure 4: Sectional view of the stirring nozzle. the

In the figure: 1 dispensing tank, 2 liquid level sensor, 3 operating table, 4 emptying pipe, 5 emptying valve, 6 liquid medicine storage tank, 7 circulation stirring pump pipe, 8 solenoid valve A, 9 liquid medicine storage tank outlet Material pipe, 10 Solenoid valve B, 11 Liquid medicine delivery pipe, 12 Rotameter, 13 Solenoid valve C, 14 Pump inlet pipe, 15 Centrifugal pump, 16 Pump outlet pipe, 17 Solenoid valve D, 18 Stirring pipe, 19 Discharge Pipe, 20 discharge valve, 21 stirring nozzle, 31 tightening nut, 32 tightening washer, 33 stirring nozzle inlet pipe, 34 stirring nozzle outlet pipe, 35 taper pipe thread, 36 ordinary fine thread. the

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described further. the

Up and down double-circulation stirring dispensing device, including dispensing tank 1, liquid level sensor, 2 console 3, emptying pipe 4, emptying valve 5, liquid medicine storage tank 6, circulating stirring pump pipe 7, solenoid valve A8, liquid medicine Storage tank discharge pipe 9, solenoid valve B10, liquid medicine delivery pipe 11, rotameter 12, solenoid valve C13, pump inlet pipe 14, centrifugal pump 15, pump outlet pipe 16, solenoid valve D17, stirring pipe 18, discharge Pipe 19, discharge valve 20, stirring nozzle 21, dispensing tank 22, tightening nut 31, tightening washer 32, stirring nozzle inlet pipe 33, stirring nozzle outlet pipe 34, tapered pipe thread 35, ordinary fine thread 36; The dispensing tank 22 is connected to the circulation stirring inlet pump pipe 7, and the circulation stirring inlet pump pipe 7 is respectively connected to the discharge pipe 9 of the liquid medicine storage tank and the pump inlet pipe 14; The pipe 19 is connected to the liquid medicine storage tank 6, and the discharge pipe 19 is equipped with a discharge valve 20; the pump outlet pipe 16 is respectively connected to the liquid medicine delivery pipe 11 and the stirring pipe 18, and the stirring pipe 18 is connected to the stirring nozzle 21, and the stirring pipe 18 is equipped with an electromagnetic Valve D17; liquid medicine delivery pipe 11 is equipped with rotameter 12 and electromagnetic valve C13; said dispensing tank 22 upper side is equipped with liquid level sensor 1, the bottom center is connected with emptying pipe 4, and emptying pipe 4 is equipped with The emptying valve 5; the liquid medicine storage tank 6 is connected to the discharge pipe 9 of the liquid medicine storage tank. the

The upper end of the circulating stirring inlet pump pipe 7 is in the shape of a horizontal arc, the circular arc is the concentric circle of the dispensing tank 22, and the nozzle is located at 2/3 of the total height of the dispensing tank, and the circulating stirring inlet pump pipe 7 is equipped with a solenoid valve A8 . the

The liquid medicine delivery pipe 11 is equipped with a rotameter and a solenoid valve C13. the

A discharge valve 20 is installed on the discharge pipe 19 . the

The included angle between the centerlines of the inlet pipe 33 of the stirring nozzle and the outlet pipe of the stirring nozzle 34 is 60°. the

The stirring nozzle 21 is connected with the dispensing tank 22 through the ordinary fine thread 36, and the dispensing tank 22 has a sealing gasket 32, a tightening thread nut 31 and a taper pipe thread 35 and the dispensing tank 22 are tightly fixed outside the wall of the dispensing tank 22. the

The pump inlet pipe 14 is respectively connected to the discharge pipe 9 of the liquid medicine storage tank and the pump pipe 7 for circulating stirring. the

The discharge pipe 9 of the liquid medicine storage tank is equipped with a solenoid valve B10. the

Except for the technical features described in this specification, all are technologies well known to those skilled in the art. the

Claims (8)

1. Up and down double-circulation stirring dispensing device, including dispensing tank, liquid level sensor, operating table, emptying pipe, emptying valve, liquid medicine storage tank, circulation stirring pump pipe, solenoid valve A, liquid medicine storage tank discharge pipe , solenoid valve B, liquid medicine delivery pipe, rotameter, solenoid valve C, pump inlet pipe, centrifugal pump, pump outlet pipe, solenoid valve D, stirring pipe, discharge pipe, discharge valve, stirring nozzle, dispensing tank, Tight nut, tight washer, agitating nozzle inlet pipe, agitating nozzle outlet pipe, tapered pipe thread, ordinary fine thread; its characteristic is: the dispensing tank is connected to the pump pipe for circulating stirring, and the pump pipe for circulating stirring is respectively connected to the liquid medicine The outlet pipe of the storage tank and the inlet pipe of the pump; the bottom side of the dispensing tank is connected to the outlet pipe, and the outlet pipe is connected to the liquid medicine storage tank, and the outlet pipe is equipped with a discharge valve; the outlet pipes of the pump are respectively connected to the liquid medicine delivery pipe And stirring tube, the stirring tube is connected to the stirring nozzle, the stirring tube is equipped with a solenoid valve D; the liquid delivery pipe is equipped with a rotameter and a solenoid valve C; The emptying pipe is equipped with an emptying valve; the liquid medicine storage tank is connected with the discharge pipe of the liquid medicine storage tank. 2. The upper and lower double-circulation stirring dispensing device according to claim 1, characterized in that: the upper end of the circulating stirring inlet pump pipe is in the shape of a horizontal arc, and the arc is concentric to the dispensing tank. 3. The upper and lower double-circulation stirring dispensing device according to claim 1, characterized in that: the angle between the centerlines of the inlet pipe of the stirring nozzle and the outlet pipe of the stirring nozzle is 60°. 4. The upper and lower double-circulation stirring dispensing device as claimed in claim 1, characterized in that: the stirring nozzle is connected to the dispensing tank through ordinary fine thread, and there are sealing gaskets, tightening nuts and cone tubes outside the dispensing tank wall The thread is tightly fixed with the dispensing tank. 5. The upper and lower double-circulation stirring dispensing device according to claim 1, characterized in that: the pump inlet pipe is respectively connected to the discharge pipe of the liquid medicine storage tank and the circulating stirring inlet pump pipe. 6. The upper and lower double-circulation stirring dispensing device according to claim 1, characterized in that: the discharge pipe of the liquid medicine storage tank is equipped with a solenoid valve B. 7. The upper and lower double-circulation stirring dispensing device as claimed in claim 1, characterized in that: the liquid medicine delivery pipe is equipped with a rotameter and a solenoid valve C. 8. The upper and lower double-circulation stirring dispensing device as claimed in claim 2, characterized in that: the nozzle of the circulation stirring inlet pump pipe is located at 2/3 of the total height of the dispensing tank, and the solenoid valve A is installed on the circulation stirring inlet pump pipe. the

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