Quantitative flocculant adding device for pretreatment of mixed wastewater

Abstract

The utility model discloses a flocculating agent quantitative adding device for pretreatment of mixed wastewater, which relates to the technical field of resin production and comprises a tank body, a motor is fixed at the top of the tank body, a cross plate is fixed at the bottom of the top wall of the tank body, a fixed ring is fixed at the bottom of the cross plate, and a connecting ring is mounted on the outer side of the fixed ring through a bearing. A transmission part is arranged on the outer side of the output end of the motor, the other end of the transmission part is fixed to the outer side of the connecting ring, a spraying cover is fixed to the bottom of the connecting ring, a through hole is formed in the bottom wall of the spraying cover in a penetrating mode, and a stirring rod is fixed to the bottom of the spraying cover. The forming speed of an alkaline environment is greatly accelerated.

Description

TECHNICAL FIELD

[0001] The utility model relates to mixed wastewater pretreatment production technical field, concretely is a flocculating agent quantitative adding device for mixed wastewater pretreatment. BACKGROUND

[0002] The flocculating agent quantitative adding device for mixed wastewater pretreatment plays a vital role in wastewater treatment. It can accurately control the dosage of flocculating agent, regardless of the changes in wastewater quality, and can ensure the stability of the treatment effect, avoiding poor treatment caused by adding too little, and preventing waste and secondary pollution caused by adding too much. At the same time, the device helps to improve the flocculation efficiency, makes the flocculating agent evenly dispersed in the wastewater, optimizes the flocculation process, forms flocculation with compact structure and good settling performance, thereby speeding up the solid-liquid separation speed and improving the efficiency of the entire pretreatment process. In addition, it also has the advantages of easy management and cost control, can record the addition data of flocculating agent, facilitate management personnel to trace and evaluate the treatment process, and realize cost accounting and optimization through accurate measurement, while ensuring the effect of wastewater treatment, reducing the treatment cost, and is an important equipment indispensable in the mixed wastewater pretreatment process.

[0003] Mixed wastewater refers to complex wastewater containing impurities, heavy metals, high COD, etc. The treatment of such wastewater requires adding alkali in the ton barrel to form hydroxide precipitate of heavy metals, then adding PAM, PAC and other flocculants to flocculate (only under alkaline conditions can flocculation occur) and precipitate, and then pumping the water to the transfer ton barrel by the water pump with a filter screen at the front end, and finally performing system treatment.

[0004] The defects of the existing flocculating agent quantitative adding device are: since the complex wastewater containing impurities, heavy metals, high COD, etc. can only flocculate with PAM, PAC and other flocculants under alkaline conditions, the existing device directly injects alkali or PAM, PAC and other flocculants into the tank body according to the required dosage for mixing and reaction, but the mixing efficiency is low, multiple mixing of alkali is not considered, the formation speed of alkaline environment is slow, and the flocculation efficiency is low. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a flocculating agent quantitative adding device for mixed wastewater pretreatment, which can solve the technical problems of slow formation speed of alkaline environment and low flocculation efficiency in the prior art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a flocculating agent quantitative adding device for the pretreatment of mixed wastewater, including jar body, the top of jar body is fixed with motor, the bottom of jar body top wall is fixed with cross plate, the bottom of cross plate is fixed with fixed ring, the outside of fixed ring is equipped with connecting ring through bearing, the output outside of motor is provided with transmission part, the other end of transmission part is fixed to the outside of connecting ring, the bottom of connecting ring is fixed with spray cover, the bottom wall of spray cover is equipped with through hole, the bottom of spray cover is fixed with stirring rod.

[0007] Specifically, the top of the jar body is fixed with a water inlet, the outside of the jar body is equipped with a water outlet, the bottom of the jar body is fixed with a discharge port, the outside of the jar body is fixed with a base plate, and the base plate is located on the top of the water outlet.

[0008] Specifically, the cross plate is provided in a cross shape, and a circular hole is formed in the middle of the cross plate. One branch of the cross plate is penetrated by the output end of the motor, and another branch of the cross plate penetrated by the motor is provided with a lye channel. The other two branches of the cross plate are respectively provided with a PAM channel and a PAC channel. The lye channel, the PAM channel and the PAC channel are in communication with the circular hole. A one-way valve is fixed to the inside of one end of the lye channel, the PAM channel and the PAC channel close to the circular hole. A flow sensor is fixed to the inside of each one-way valve.

[0009] Specifically, the transmission part includes gear one, gear two and meshing belt. The gear one is fixed to the output end of the motor, and the gear one is located at the bottom of the cross plate. The gear two is fixed to the outside of the connecting ring. The meshing belt is sleeved on the outside of the gear one and the gear two, and the meshing belt is engaged with the gear one and the gear two. The bottom of the cross plate is fixed with a protective shell. The gear one, the gear two and the meshing belt are located on the inside of the square box.

[0010] Specifically, the outside of the jar body is fixed with a four-way box one through a pipeline. The outside of the jar body is fixed with a PAM pipeline. The outside of the jar body is fixed with a PAC pipeline. The PAM pipeline and the PAC pipeline are connected with two output ends of the four-way box one. The PAM pipeline is in communication with the PAM channel. The PAC pipeline is in communication with the PAC channel.

[0011] Specifically, the input end bottom of the four-way box one is fixed with a connecting pipe. The top of the base plate is fixed with a metering pump. The output end of the metering pump is fixedly connected with the bottom of the connecting pipe. The top of the base plate is fixed with a four-way box two. The output end of the four-way box two is fixedly connected with the input end of the metering pump.

[0012] Specifically, the top of the cross plate is fixed with a flow splitting cone.

[0013] Compared with the prior art, the utility model has the beneficial effects as follows:

[0014] 1. The utility model discloses a spray cover is installed, waste water enters the tank body, and lye enters the tank body simultaneously, and the spray cover sprays lye to the inside with waste water, carries out the preliminary mixing, when waste water and lye fall to the tank body bottom and bounce, carries out secondary mixing, and then the stirring rod stirs waste water and lye, mixes again, and the formation speed of alkaline environment is accelerated greatly, and then the working efficiency is accelerated.

[0015] 2. The utility model discloses a shunt cone is installed, and the shunt cone guides waste water to the four -corner, avoids the direct impact spray cover and cross plate of water flow, forms water curtain, and mixes with the lye or flocculation agent that spray cover sprays. DRAWINGS

[0016] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0017] Figure 2 It is the section structure schematic diagram of the utility model;

[0018] Figure 3 It is Figure 2 the enlarged view of A of

[0019] Figure 4 It is the cross plate cross section schematic diagram of the utility model;

[0020] Figure 5 It is the tank body cross section schematic diagram of the utility model.

[0021] In the drawing: 1, tank body;2, motor;3, water inlet;4, water outlet;5, discharge gate;6, base plate;7, cross plate;8, PAM channel;9, PAC channel;10, lye channel;11, link pipe;12, PAM pipeline;13, PAC pipeline;14, four-way box one;15, flow sensor;16, metering pump;17, four-way box two;18, protective shell;19, gear one;20, fixed ring;21, connecting ring;22, gear two;23, spray cover;24, through -hole;25, stirring rod;26, shunt cone. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0023] In the description of the utility model, it needs to explain, the term "upper", "lower", "internal", "external" "front end", "rear end", "both ends", "one end", "the other end" and so on indicate the orientation or positional relationship is based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element must have a particular orientation, a particular orientation and operation, therefore cannot be understood as a limitation on the utility model. In addition, the term "first", "second" is only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the utility model, it needs to explain, unless otherwise expressly provided and limited, the terms "installation", "provided with", "connection" and so on, should be broadly understood, for example, "connection", can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] Embodiment: please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 And Figure 5 , a kind of polycondensation kettle for resin production, including tank body 1, motor 2 is fixed at the top of tank body 1, cross plate 7 is fixed at the top wall bottom of tank body 1, fixed ring 20 is fixed at the bottom of cross plate 7, connecting ring 21 is installed on the outside of fixed ring 20 by bearing, transmission part is provided on the output end outside of motor 2, another end of transmission part is fixed to the outside of connecting ring 21, spraying cover 23 is fixed at the bottom of connecting ring 21, through hole 24 is formed in the bottom wall of spraying cover 23, stirring rod 25 is fixed at the bottom of spraying cover 23.

[0026] Further, cross plate 7 is set as cross shape, and round hole is formed in the middle of cross plate 7, one branch of cross plate 7 is penetrated by the output end of motor 2, alkali channel 10 is formed in the other branch of cross plate 7 penetrated by motor 2, PAM channel 8 and PAC channel 9 are formed in the other two branches of cross plate 7 respectively, alkali channel 10, PAM channel 8 and PAC channel 9 are communicated with round hole, one-way valve is fixed in the inside of alkali channel 10, PAM channel 8 and PAC channel 9 close to the end of round hole, flow sensor 15 is fixed in the inside of each one-way valve.

[0027] In the embodiment, flow sensor 15 is used to detect the dosage of alkali, PAC and PAM entering tank body 1.

[0028] Further, the transmission part comprises gear one 19, gear two 22 and meshing belt, gear one 19 is fixed on the outside of the output end of motor 2, and gear one 19 is located at the bottom of cross plate 7, gear two 22 is fixed on the outside of connecting ring 21, meshing belt is sleeved on the outside of gear one 19 and gear two 22, and meshing belt is engaged with gear one 19 and gear two 22, the bottom of cross plate 7 is fixed with protective shell 18, and gear one 19, gear two 22 and meshing belt are located inside the square box.

[0029] Further, the outside of tank body 1 is fixed with four-way box one 14 through pipeline, the outside of tank body 1 is fixed with PAM pipeline 12, the outside of tank body 1 is fixed with PAC pipeline 13, and PAM pipeline 12 and PAC pipeline 13 are connected with two output ends of four-way box one 14, PAM pipeline 12 is communicated with PAM channel 8, and PAC pipeline 13 is communicated with PAC channel 9.

[0030] In the embodiment, the inside of three output ends of four-way box one 14 is fixed with electromagnetic valve.

[0031] Further, the bottom of the input end of four-way box one 14 is fixed with adapter pipe 11, the top of base plate 6 is fixed with metering pump 16, the output end of metering pump 16 is fixedly connected with the bottom of adapter pipe 11, the top of base plate 6 is fixed with four-way box two 17, and the output end of four-way box two 17 is fixedly connected with the input end of metering pump 16.

[0032] In the embodiment, the inside of three input ends of four-way box two 17 is fixed with electromagnetic valve, the staff opens motor 2 and metering pump 16, opens the electromagnetic valve of four-way box one 14 leading to the output end of lye channel 10, opens the electromagnetic valve of the input end of one end of four-way box two 17 away from metering pump 16, then injects wastewater into the inside of tank body 1 through water inlet 3, metering pump 16 absorbs lye through four-way box two 17, then metering pump 16 is pumped into spraying cover 23 through adapter pipe 11, four-way box one 14 and lye channel 10, lye is sprayed from the inside of through hole 24 under the action of pressure, motor 2 drives meshing belt and gear two 22 to rotate through gear one 19, gear two 22 drives spraying cover 23 to rotate through connecting ring 21, spraying cover 23 drives stirring rod 25 to rotate, wastewater enters tank body 1 at the same time as lye enters tank body 1, spraying cover 23 sprays lye into wastewater, preliminary mixing is carried out, when wastewater and lye fall to the bottom of tank body 1 and bounce up, secondary mixing is carried out, then stirring rod 25 stirs wastewater and lye, mixing is carried out again, which greatly accelerates the formation speed of alkaline environment.

[0033] After the injection of wastewater and lye reaches the designated standard, the staff stops injecting wastewater and lye, and the staff sucks the specified dose of PAM (or PAC) through the four-way valve two 17 through the same steps, and the metering pump 16 pumps into the spray cover 23 through the connecting pipe 11, the four-way valve one 14 and the PAM channel 8 (or the PAC channel 9), and sprays to the top of the wastewater and lye mixture, and is mixed by stirring;

[0034] Further, the top of the tank body 1 is fixed with a water inlet 3, the outer side of the tank body 1 is penetrated and installed with a water outlet 4, the bottom of the tank body 1 is fixed with a discharge port 5, the outer side of the tank body 1 is fixed with a base plate 6, and the base plate 6 is located at the top of the water outlet 4.

[0035] In this embodiment, the staff connects the water pump with a filter screen at the front end to the water outlet 4, connects the PAM storage tank and the PAC storage tank to the two input ends of the four-way valve two 17 away from the tank body 1 side using the connecting pipeline, connects the alkali storage tank and the input end of the four-way valve two 17 away from the metering pump 16 side using the connecting pipeline, and then fixes and communicates the pipeline for conveying wastewater with the water inlet 3.

[0036] After the stirring time is reached, the motor 2 and the metering pump 16 are turned off, and the PAM (or PAC) and the wastewater and lye mixture are reacted and precipitated, after the precipitation is finished, the water is pumped into the transfer ton barrel by starting the water pump, and finally the system is processed, the precipitation is accumulated at the bottom of the tank body 1, and the discharge port 5 is opened for discharge when the treatment is needed.

[0037] Further, the top of the cross plate 7 is fixed with a flow splitting cone 26.

[0038] In this embodiment, the flow splitting cone 26 guides the wastewater to the periphery, avoiding the direct impact of the water flow on the spray cover 23 and the cross plate 7, and forming a water curtain.

[0039] Working principle: Before using the device, the device should be checked for problems affecting the use, the staff will be equipped with filter screen pump and water outlet 4 connection, using the connecting pipeline PAM storage tank and PAC storage tank and four-way box two 17 away from the tank body 1 side of the two input end connection, using the connecting pipeline alkali storage tank and four-way box two 17 away from the metering pump 16 side of the input end connection, then the pipeline and water inlet 3 fixed and communication of waste water, the staff open motor 2 and metering pump 16, open four-way box one 14 to the alkali liquid way 10 output end of the electromagnetic valve, open four-way box two 17 away from the input end of the electromagnetic valve of metering pump 16, then through the water inlet 3 to the tank body 1 inside injection of waste water, metering pump 16 will be pumped into the alkali liquid spray cover 23, alkali liquid from the inside of the hole 24 spray, motor 2 through the transmission and connecting ring 21 drive spray cover 23 rotation, spray cover 23 drive stirring rod 25 rotation, waste water into the tank body 1 at the same time alkali liquid into the tank body 1, spray cover 23 will be sprayed to the alkali liquid and waste water inside, preliminary mixing, when waste water and alkali liquid fall to the tank body 1 bottom bounce after secondary mixing, then stirring rod 25 on waste water and alkali liquid stirring, mixing again;

[0040] After injection of waste water and alkali liquid to reach the working specified standard, the staff stop injection of waste water and alkali liquid, the staff through the same steps, will be specified dose of PAM (or PAC) to waste water and alkali liquid mixture, by stirring mixing;

[0041] After reaching the stirring time, close motor 2 and metering pump 16, wait for PAM (or PAC) and waste water and alkali liquid mixture reaction, precipitation, after the end of precipitation, by starting the water pump to the water to the transfer ton barrel, finally again for system processing, precipitation in the tank body 1 bottom accumulation, need to be handled when open discharge outlet 5 discharge.

[0042] It is apparent to those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and that the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the present application being defined by the appended claims rather than the foregoing description, and it is intended to include all changes coming within the meaning and equivalency range of the claims. Any reference signs in the claims should not be construed as limiting the claims to which they belong.

Claims

1. A flocculant dosing device for the pretreatment of mixed wastewater, comprising a tank body (1), a motor (2) is fixed on the top of the tank body (1), characterized in that: The cross plate (7) is fixed at the bottom of the top wall of the tank body (1), the bottom of the cross plate (7) is fixed with a fixed ring (20), the outer side of the fixed ring (20) is installed with a connecting ring (21) through a bearing, the outer side of the output end of the motor (2) is provided with a transmission part, the other end of the transmission part is fixed to the outer side of the connecting ring (21), the bottom of the connecting ring (21) is fixed with a spraying cover (23), the bottom wall of the spraying cover (23) is provided with a through hole (24), the bottom of the spraying cover (23) is fixed with a stirring rod (25).

2. The flocculant dosing apparatus for the pretreatment of mixed wastewater according to claim 1, characterized by: The top of the tank body (1) is fixed with a water inlet (3), the outer side of the tank body (1) is installed with a water outlet (4), the bottom of the tank body (1) is fixed with a discharge port (5), the outer side of the tank body (1) is fixed with a base plate (6), and the base plate (6) is located at the top of the water outlet (4).

3. The flocculant dosing apparatus for the pretreatment of mixed wastewater according to claim 2, characterized by: The cross plate (7) is provided in a cross shape, a circular hole is formed in the middle of the cross plate (7), one branch of the cross plate (7) is penetrated by the output end of the motor (2), the cross plate (7) is penetrated by another branch located on the same straight line and penetrated by the motor (2) to form a lye channel (10), the other two branches of the cross plate (7) are respectively penetrated to form a PAM channel (8) and a PAC channel (9), the lye channel (10), the PAM channel (8) and the PAC channel (9) are communicated, and the inner side of one end of the lye channel (10), the PAM channel (8) and the PAC channel (9) is fixed with a one-way valve, and the inner side of each one-way valve is fixed with a flow sensor (15).

4. The flocculant dosing apparatus for the pretreatment of mixed wastewater according to claim 1, characterized by: The transmission part includes a gear one (19), a gear two (22) and a meshing belt, the gear one (19) is fixed to the outer side of the output end of the motor (2), and the gear one (19) is located at the bottom of the cross plate (7), the gear two (22) is fixed to the outer side of the connecting ring (21), the meshing belt is sleeved on the gear one (19) and the gear, and the meshing belt is engaged with the gear one (19) and the gear two (22), the bottom of the cross plate (7) is fixed with a protective shell (18), and the gear one (19), the gear two (22) and the meshing belt are located in the inner side of the square box.

5. The flocculant dosing apparatus for the pretreatment of mixed wastewater according to claim 3, characterized by: The outer side of the tank body (1) is fixed with a four-way box one (14) through a pipeline, the outer side of the tank body (1) is fixed with a PAM pipeline (12), the outer side of the tank body (1) is fixed with a PAC pipeline (13), and the PAM pipeline (12) and the PAC pipeline (13) are connected with two output ends of the four-way box one (14), the PAM pipeline (12) and the PAM channel (8) are communicated, and the PAC pipeline (13) and the PAC channel (9) are communicated.

6. The flocculant dosing apparatus for the pretreatment of mixed wastewater according to claim 5, characterized by: The input end of the four-way box one (14) is fixed with a connecting pipe (11) at the bottom, the top of the base plate (6) is fixed with a metering pump (16), the output end of the metering pump (16) is fixedly connected with the bottom of the connecting pipe (11), the top of the base plate (6) is fixed with a four-way box two (17), and the output end of the four-way box two (17) is fixedly connected with the input end of the metering pump (16).

7. The flocculant dosing apparatus for the pretreatment of mixed wastewater according to claim 1, characterized by: The top of the cross plate (7) is fixed with a shunt cone (26).

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