CN111992076A

CN111992076A - Sewage treatment chemical dissolving tank and chemical adding method thereof

Info

Publication number: CN111992076A
Application number: CN202010852571.3A
Authority: CN
Inventors: 陈正国
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2020-11-27

Abstract

The invention discloses a reagent dissolving box for sewage treatment and a dosing method thereof, and belongs to the technical field of reagent dissolving boxes. The invention provides a sewage treatment's medicament dissolves case, includes water tank, agitator tank, inlet pipe, one side fixedly connected with inlet tube that the agitator tank was kept away from to the water tank, water tank upper end one side is connected with the force (forcing) pump, the one side that the water tank upper end is close to the agitator tank is connected with the cylinder, the invention through the setting of force (forcing) pump, cylinder, connection rope, accuse flitch, just can realize that water and material enter into the agitator tank simultaneously according to the proportion under the condition that does not need the manpower, not only reduced user's the amount of labour, still improved work efficiency, through first motor, the setting of spiral puddler, can make water and material roll from top to bottom, make water and material dissolve more abundant, accelerated the speed that the medicament dissolves, thereby further improved work efficiency, satisfied the actual user demand of user.

Description

Sewage treatment chemical dissolving tank and chemical adding method thereof

Technical Field

The invention relates to the technical field of a medicament dissolving tank, in particular to a medicament dissolving tank for sewage treatment and a medicament adding method thereof.

Background

At present, when people treat sewage, various chemical agents are required to be added into the sewage to be used as coagulation, flocculation and coagulant aid for disinfection and sterilization so as to achieve the aim of water purification; for the throwing of some granular solid chemical agents, the dissolution is generally carried out firstly, and the granular solid chemical agents can be thrown into a reaction tank for coagulation or flocculation or coagulation assistance according to a certain proportion by controlling the concentration of the dissolution.

However, before the existing chemical dissolving tank for sewage treatment is directly used, because materials and water must be fed simultaneously, a user must control the feeding speed according to the amount of water, so that the labor intensity of the user is greatly increased, and the reaction of the user becomes low with the lapse of time, which may cause untimely feeding and affect the working efficiency.

Disclosure of Invention

The invention aims to solve the problems that before the existing sewage treatment chemical dissolving tank is directly used, because materials and water are required to be fed simultaneously, a user needs to control the feeding speed according to the quantity of water, the labor intensity of the user is greatly increased, and the reaction of the user becomes low along with the lapse of time, so that the feeding time is possibly shortened, and the working efficiency is possibly influenced, and provides the sewage treatment chemical dissolving tank and the dosing method thereof.

In order to achieve the purpose, the invention adopts the following technical scheme:

a medicament dissolving tank for sewage treatment comprises a water tank, an agitator tank and an inlet pipe, wherein the water tank is connected with the agitator tank through a connecting water pipe, a one-way valve is fixedly connected inside the connecting water pipe, one side of the water tank, which is far away from the agitator tank, is fixedly connected with an inlet pipe, a first valve is arranged on the inlet pipe, one side of the upper end of the water tank is connected with a pressure pump, the pressure pump is connected with the water tank through an inlet pipe, one side of the upper end of the water tank, which is close to the agitator tank, is connected with a cylinder through a hard pipe, one side of the inside of the cylinder, which is close to the inlet pipe, is connected with a first return spring, the other end of the first return spring is connected with a sealing plate, the sealing plate is connected inside the cylinder in a sliding manner, the inlet pipe is fixedly connected, be connected with second return spring on the fixed block, second return spring keeps away from the one end fixedly connected with and the inlet pipe assorted accuse flitch of fixed block, be connected through being connected the rope between closing plate and the accuse flitch, the agitator tank upper end is equipped with the work box, the first motor of fixedly connected with in the work box, the output fixedly connected with spiral puddler of first motor, spiral puddler rotates in the agitator tank, the agitator tank goes out the medicine mouth and is connected with out the pencil, it is equipped with the second valve on the pencil to go out, the equal fixedly connected with bracing piece in water tank, agitator tank lower extreme both sides.

Preferably, a box cover is arranged at the upper end of the stirring box, first magnetic blocks are connected to two sides of the box cover, and second magnetic blocks matched with the first magnetic blocks are arranged on two sides of the stirring box.

Preferably, work box fixed connection is in the upper end of case lid, work box inside both sides all are connected with the dwang through the pivot rotation, the one end fixedly connected with action wheel, two that the pivot was kept away from to the spiral puddler the equal fixedly connected with of one end and the action wheel assorted from the driving wheel of pivot, the one end of keeping away from the dwang from the driving wheel is connected with first puddler, first puddler runs through in the case lid, and rotates in the agitator tank, the surface of first puddler evenly is connected with a plurality of stirring rods.

Preferably, the surface of the working box is provided with a sound insulation layer.

Preferably, the inside one end that is close to the inlet pipe of water tank is equipped with the float piece, the water tank upper end is equipped with the through hole, float piece upper end fixedly connected with connecting rod, the one end that the float piece was kept away from to the connecting rod runs through in the through hole, and rotates and be connected with the restriction wheel, restriction wheel and connecting rope position phase-match, through sealing member sealing connection between through hole and the connecting rod.

Preferably, one side that the inlet pipe is close to the cylinder is connected with the take-up pulley, connect rope sliding connection on the take-up pulley.

Preferably, the surface of the material control plate is provided with a sealing rubber pad.

Preferably, a water level observation window is arranged at the upper end of one side of the water tank close to the water inlet pipe.

Preferably, the lower end of the support rod is rotatably connected with a ground bolt through threads.

A dosing method mainly comprises the following steps:

s1, pouring the material into the feed pipe by the user, and opening the first valve on the feed pipe to inject water into the water tank;

s2, after water is injected, a pressure pump is started to pressurize the inside of the water tank, water enters the stirring box through a connecting water pipe under the action of pressure, gas also enters the cylinder through a hard pipe while the pressure pump pressurizes the water, so that the sealing plate is pushed to move, the connecting rope becomes loose at the moment, the material control plate moves upwards under the action of a second return spring, so that materials flow out of the gap and are discharged into the stirring box through the discharge port, and the water and the materials can simultaneously enter the stirring box in proportion without manpower;

s3, when water and materials enter the stirring box, a user starts the first motor to drive the spiral stirring rod to rotate, and the water and the materials are driven by the spiral stirring rod to roll up and down, so that the water and the materials are dissolved more fully, the dissolving speed of the medicament is increased, and the working efficiency is improved.

And S4, after stirring, the user can connect the hose to the medicine outlet of the medicine outlet pipe in a sealing way, and open the second valve to discharge the dissolved medicine into the sewage treatment tank through the hose, so as to purify the sewage.

Compared with the prior art, the invention provides a sewage treatment medicament dissolving tank and a medicament adding method thereof, and the sewage treatment medicament dissolving tank has the following beneficial effects:

1. when the chemical dissolving box for sewage treatment and the chemical adding method thereof are used, a user firstly moves the dissolving box to a designated working position to fix the dissolving box to prevent the dissolving box from moving during working and influencing the working efficiency, one side of the water tank far away from the stirring box is fixedly connected with a water inlet pipe, a first valve is arranged on the water inlet pipe, one side of the upper end of the water tank is connected with a pressure pump, the pressure pump is connected with the water tank through an air inlet pipe, one side of the upper end of the water tank close to the stirring box is connected with a cylinder, the cylinder is connected with the water tank through a hard pipe, one side of the interior of the cylinder close to a feed pipe is connected with a first return spring, the other end of the first return spring is connected with a sealing plate, the sealing plate is connected inside the cylinder in a sliding manner, the, the fixed block is connected with a second return spring, one end of the second return spring, which is far away from the fixed block, is fixedly connected with a material control plate matched with the feeding pipe, the sealing plate is connected with the material control plate through a connecting rope, after the dissolving tank is fixed, a user pours the material into the feeding pipe, the first valve is opened to inject water into the water tank, after the water is injected, the pressure pump is opened to pressurize the inside of the water tank, the water enters the stirring tank through the connecting pipe under the action of pressure, the pressure pump pressurizes the water and simultaneously leads the gas to enter the cylinder through the hard pipe so as to push the sealing plate to move, at the moment, the connecting rope becomes loose, the material control plate moves upwards under the action of the second return spring, so that the material flows out from a gap, the material is discharged into the stirring tank through the discharge port, and because the material and the water must be discharged simultaneously, the user must control the feeding speed according to the quantity of water, greatly increasing the labor intensity of users, and along with the time, the reaction of the users becomes lower, possibly causing the influence on the working efficiency when the feeding is not timely, through the arrangement of the pressure pump, the air cylinder, the connecting rope and the material control plate, the water and the materials can simultaneously enter the stirring box in proportion without manpower, not only reducing the labor amount of the users, but also improving the working efficiency, the upper end of the stirring box is provided with the working box, the working box is internally and fixedly connected with a first motor, the output end of the first motor is fixedly connected with a spiral stirring rod, the spiral stirring rod rotates in the stirring box, the medicine outlet of the stirring box is connected with a medicine outlet pipe, when the water and the materials enter the stirring box, the users start the first motor to drive the spiral rotating rod to rotate, under the drive of the spiral rotating rod, the water and the materials roll up and down, so that the water and the materials are more fully dissolved, the dissolving speed of the medicament is accelerated, so that the working efficiency is improved;

the device has the advantages that the arrangement of the pressure pump, the air cylinder, the connecting rope and the material control plate can realize that water and materials simultaneously enter the stirring box in proportion without manpower, so that the labor capacity of a user is reduced, the working efficiency is improved, the arrangement of the first motor and the spiral stirring rod can roll the water and the materials up and down, the water and the materials are more fully dissolved, the medicament dissolving speed is increased, the working efficiency is further improved, and the actual use requirements of the user are met.

Drawings

FIG. 1 is a schematic structural diagram of a chemical dissolving tank for sewage treatment and a chemical feeding method thereof according to the present invention;

FIG. 2 is a second schematic structural view of a chemical dissolving tank for sewage treatment and a chemical feeding method thereof according to the present invention;

FIG. 3 is a third schematic structural view of a chemical dissolving tank for sewage treatment and a chemical feeding method thereof according to the present invention;

FIG. 4 is a schematic structural view of part A in FIG. 3, illustrating a chemical dissolving tank for wastewater treatment and a chemical adding method thereof according to the present invention;

FIG. 5 is a schematic structural view of a portion B in FIG. 3 of a chemical dissolving tank for sewage treatment and a chemical adding method thereof according to the present invention;

FIG. 6 is a schematic structural view of a chemical dissolving tank for sewage treatment and a chemical adding method thereof, shown in FIG. 1, of a portion C.

In the figure: 1. a water tank; 2. a stirring box; 3. a feed pipe; 4. a cylinder; 5. a pressure pump; 6. An air inlet pipe; 7. a water inlet pipe; 8. a water level observation window; 9. connecting a water pipe; 10. a one-way valve; 11. A box cover; 12. a work box; 13. a first motor; 14. rotating the rod; 15. a driven wheel; 16. a driving wheel; 17. a stirring rod; 18. a first stirring rod; 20. a helical agitator shaft; 22. a support bar; 24. a medicine outlet pipe; 26. a ground bolt; 27. connecting ropes; 28. a floaters block; 29. a sealing plate; 30. a first return spring; 101. a connecting rod; 202. a first magnetic block; 201. a second magnetic block; 301. a material control plate; 302. a second return spring; 303. a receiving wheel; 401. and (4) hard tubes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1:

referring to fig. 1-6, a chemical dissolving tank for sewage treatment comprises a water tank 1, an agitator tank 2, a feeding pipe 3, the water tank 1 is connected with the agitator tank 2 through a connecting water pipe 9, a one-way valve 10 is fixedly connected inside the connecting water pipe 9, a water inlet pipe 7 is fixedly connected to one side of the water tank 1 away from the agitator tank 2, a first valve is arranged on the water inlet pipe 7, a pressure pump 5 is connected to one side of the upper end of the water tank 1, the pressure pump 5 is connected with the water tank 1 through an air inlet pipe 6, a cylinder 4 is connected to one side of the upper end of the water tank 1 close to the agitator tank 2, the cylinder 4 is connected with the water tank 1 through a hard pipe 401, a first return spring 30 is connected to one side of the inside of the cylinder 4 close to the feeding pipe 3, a sealing plate 29 is connected to the other, discharge gate and 2 fixed connection of agitator tank of inlet pipe 3, the inside both sides fixedly connected with fixed block of inlet pipe 3's feed inlet, be connected with second return spring 302 on the fixed block, the one end fixedly connected with and the inlet pipe 3 assorted accuse flitch 301 of fixed block are kept away from to second return spring 302, be connected through being connected rope 27 between closing plate 29 and the accuse flitch 301, 2 upper ends of agitator tank are equipped with work box 12, first motor 13 of fixedly connected with in work box 12, the output end fixedly connected with spiral puddler 20 of first motor 13, spiral puddler 20 rotates in agitator tank 2, 2 medicine outlets of agitator tank are connected with out pencil 24, be equipped with the second valve on the play pencil 24, water tank 1, the equal fixedly connected with bracing piece 22 in 2 lower extreme both sides of agitator tank.

When the dissolving tank is used by a user, the dissolving tank is firstly moved to a designated working position and is fixed, so that the dissolving tank is prevented from moving during working, and the working efficiency is influenced, one side of the water tank 1, which is far away from the stirring tank 2, is fixedly connected with a water inlet pipe 7, the water inlet pipe 7 is provided with a first valve, one side of the upper end of the water tank 1 is connected with a pressure pump 5, the pressure pump 5 is connected with the water tank 1 through an air inlet pipe 6, one side of the upper end of the water tank 1, which is close to the stirring tank 2, is connected with a cylinder 4 through a hard pipe 401, one side of the interior of the cylinder 4, which is close to the feeding pipe 3, is connected with a first return spring 30, the other end of the first return spring 30 is connected with a sealing plate 29, the sealing plate 29 is slidably connected inside the cylinder 4, the feeding pipe, the fixed block is connected with a second return spring 302, one end of the second return spring 302, which is far away from the fixed block, is fixedly connected with a material control plate 301 matched with the feeding pipe 3, the sealing plate 29 is connected with the material control plate 301 through a connecting rope 27, after the dissolving tank is fixed, a user pours the material into the feeding pipe 3, when the first valve is opened, the water tank 1 is filled with water, after the water is filled, the pressure pump 5 is opened to pressurize the inside of the water tank 1, the water enters the stirring tank 2 through a connecting water pipe 9 under the action of the pressure, when the pressure pump 5 pressurizes the water, the gas also enters the cylinder 4 through the hard pipe 401, so as to push the sealing plate 29 to move, at the moment, the connecting rope 27 becomes loose, the material control plate 301 moves upwards under the action of the second return spring 302, so that the material flows out of the gap and is discharged into the stirring tank 2 through the discharge port, because the materials and the water are fed simultaneously, the feeding speed of a user is controlled according to the amount of water, the labor intensity of the user is greatly increased, the reaction of the user becomes lower along with the passage of time, the working efficiency is possibly affected when the feeding is not timely, the water and the materials can simultaneously enter the stirring box 2 in proportion without manpower by arranging the pressure pump 5, the air cylinder 4, the connecting rope 27 and the material control plate 301, the labor amount of the user is reduced, the working efficiency is also improved, the upper end of the stirring box 2 is provided with the working box 12, the first motor 13 is fixedly connected in the working box 12, the output end of the first motor 13 is fixedly connected with the spiral stirring rod 20, the spiral stirring rod 20 rotates in the stirring box 2, the medicine outlet of the stirring box 2 is connected with the medicine outlet pipe 24, when the water and the materials enter the stirring box 2, the user is starting first motor 13 to drive spiral puddler 20 and rotate, under the drive of spiral puddler 20, water rolls from top to bottom with the material, makes more abundant that water and material dissolve, has accelerated the speed that the medicament dissolved, thereby has improved work efficiency.

Example 2:

referring to fig. 1-6, a chemical dissolving tank for sewage treatment and a chemical adding method thereof are substantially the same as in example 1, and further: 2 upper ends of agitator tank are equipped with case lid 11, and case lid 11 both sides are connected with first

magnetic path

202, and 2 both sides of agitator tank are equipped with first magnetic path 202 assorted second magnetic path 201, and convenience of customers opens case lid 11, carries out the dismouting to its inside part and maintains.

Example 3:

referring to fig. 1-6, a chemical dissolving tank for sewage treatment and a chemical adding method thereof are substantially the same as in example 1, and further: 12 fixed connection of work box in case lid 11's upper end, 12 inside both sides of work box all rotate through the pivot and are connected with dwang 14, spiral puddler 20 is close to the one end fixedly connected with action wheel 16 of first motor 13, the equal fixedly connected with of one end of pivot and action wheel 16 assorted from driving wheel 15 are kept away from to two dwang 14, the one end of keeping away from dwang 14 from driving wheel 15 is connected with first puddler 18, first puddler 18 runs through in case lid 11, and rotate in agitator tank 2, the surface homogeneous coupling of first puddler 18 has a plurality of stirring rods 17, further improve the stirring effect to the mixture, improve its work efficiency.

Example 4:

referring to fig. 1-6, a chemical dissolving tank for sewage treatment and a chemical adding method thereof are substantially the same as in example 1, and further: the surface of the working box 12 is provided with a sound insulation layer, which plays a sound insulation role for the first motor 13.

Example 5:

referring to fig. 1-6, a chemical dissolving tank for sewage treatment and a chemical adding method thereof are substantially the same as in example 1, and further: the end of the water tank 1 close to the feeding pipe 3 is provided with a float block 28, the upper end of the water tank 1 is provided with a through hole, the upper end of the float block 28 is fixedly connected with a connecting rod 101, the end of the connecting rod 101 far away from the float block 28 penetrates through the through hole and is rotatably connected with a limiting wheel, the limiting wheel is matched with the connecting rope 27 in position, the through hole is hermetically connected with the connecting rod 101 through a sealing piece, when the water in the water tank 1 is too little, a user starts to add water into the water tank 1, at the moment, the pressure pump 5 continuously works, when the water enters the water tank 1, the pressure in the water tank 1 is instantly increased, so that the material control plate 301 instantly rises, the float block 28 also rises along with the rise of the water level, and by limiting the upward acting force of the wheel pair on the connecting rope 27, the material control plate 301 is limited by the connecting rope 27 and cannot instantly move upwards, the increase of the concentration of the solvent is effectively prevented, and the stability of the dissolving box is improved.

Example 6:

referring to fig. 1-6, a chemical dissolving tank for sewage treatment and a chemical adding method thereof are substantially the same as in example 1, and further: one side that inlet pipe 3 is close to cylinder 4 is connected with the take-up pulley 303, connects rope 27 sliding connection on the take-up pulley 303, prevents to connect rope 27 and slides on the inner wall of inlet pipe 3, and the increase is to the wearing and tearing of connecting rope 27, through the setting of take-up pulley 303, and rope 27's life can be connected in effectual extension.

Example 7:

referring to fig. 1-6, a chemical dissolving tank for sewage treatment and a chemical adding method thereof are substantially the same as in example 1, and further: accuse flitch 301 surface is equipped with sealing rubber pad, when unloading to it, plays sealed effect that can be fine, can also prevent accuse flitch 301 fish tail inlet pipe 3, has improved this dissolving box's practicality.

Example 8:

referring to fig. 1-6, a chemical dissolving tank for sewage treatment and a chemical adding method thereof are substantially the same as in example 1, and further: one side upper end that water tank 1 is close to inlet tube 7 is equipped with water level observation window 8, and the user can learn the height condition of water level through observing water level observation window 8, and then in time adds water to water tank 1, has further improved this practicality that dissolves the case.

Example 9:

referring to fig. 1-6, a chemical dissolving tank for sewage treatment and a chemical adding method thereof are substantially the same as in example 1, and further: the lower end of the supporting rod 22 is rotatably connected with a ground bolt 26 through threads, and a user can fix the supporting rod 22 on the ground through the ground bolt 26, so that the dissolving box is prevented from shaking, and the stability of the dissolving box is improved.

It should be noted that in this patent application, all the electrical components are connected to an external master controller and a 220V commercial power point, and the master controller may be a conventional known device controlled by a computer or the like, and it should be noted that in the above embodiment, the driving motor may be a forward and reverse rotation motor with a model number of 90YR120GY38, and the pressure pump 5 may be a pumping pump with a model number of HL-CY 001;

according to the invention, through the arrangement of the pressure pump 5, the cylinder 4, the connecting rope 27 and the material control plate 301, water and materials can simultaneously enter the stirring box 2 in proportion without manpower, so that not only is the labor capacity of a user reduced, but also the working efficiency is improved, through the arrangement of the first motor 13 and the spiral stirring rod 20, the water and the materials can be rolled up and down, the water and the materials are more fully dissolved, the medicament dissolving speed is accelerated, the working efficiency is further improved, and the actual use requirements of the user are met.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a sewage treatment's medicament dissolving tank, includes water tank (1), agitator tank (2), inlet pipe (3), its characterized in that, be connected through connecting water pipe (9) between water tank (1) and agitator tank (2), connect inside fixedly connected with check valve (10) of water pipe (9), one side fixedly connected with inlet tube (7) that agitator tank (2) were kept away from to water tank (1), be equipped with first valve on inlet tube (7), water tank (1) upper end one side is connected with force (forcing) pump (5), be connected through intake pipe (6) between force (forcing) pump (5) and water tank (1), one side that water tank (1) upper end is close to agitator tank (2) is connected with cylinder (4), be connected through hard tube (401) between cylinder (4) and water tank (1), one side that cylinder (4) inside is close to inlet pipe (3) is connected with first return spring (30), the other end of the first return spring (30) is connected with a sealing plate (29), the sealing plate (29) is connected inside the cylinder (4) in a sliding manner, the inlet pipe (3) is fixedly connected with the water tank (1), the discharge hole of the inlet pipe (3) is fixedly connected with the stirring box (2), both sides inside the feed inlet of the inlet pipe (3) are fixedly connected with fixed blocks, the fixed blocks are connected with second return springs (302), one ends, far away from the fixed blocks, of the second return springs (302) are fixedly connected with control plates (301) matched with the inlet pipe (3), the sealing plate (29) and the control plates (301) are connected through connecting ropes (27), the upper end of the stirring box (2) is provided with a working box (12), a first motor (13) is fixedly connected in the working box (12), and the output end of the first motor (13) is fixedly connected with a spiral stirring rod (20), spiral puddler (20) rotate in agitator tank (2), agitator tank (2) play medicine mouth is connected with out pencil (24), be equipped with the second valve on play pencil (24), water tank (1), agitator tank (2) lower extreme both sides equal fixedly connected with bracing piece (22).

2. The chemical dissolving tank for sewage treatment according to claim 1, wherein a tank cover (11) is arranged at the upper end of the stirring tank (2), first magnetic blocks (202) are connected to two sides of the tank cover (11), and second magnetic blocks (201) matched with the first magnetic blocks (202) are arranged on two sides of the stirring tank (2).

3. The sewage treatment's medicament dissolving tank of claim 2, characterized in that, work box (12) fixed connection is in the upper end of case lid (11), the inside both sides of work box (12) all are connected with dwang (14) through the pivot rotation, spiral puddler (20) are close to one end fixedly connected with action wheel (16) of first motor (13), two the equal fixedly connected with of one end and action wheel (16) assorted from driving wheel (15) that the pivot was kept away from in dwang (14), the one end of keeping away from dwang (14) from driving wheel (15) is connected with first puddler (18), first puddler (18) run through in case lid (11), and rotate in agitator tank (2), the surface of first puddler (18) evenly is connected with a plurality of puddlers (17).

4. The chemical dissolving tank for sewage treatment according to claim 3, wherein the surface of the working tank (12) is provided with a sound insulation layer.

5. The sewage treatment's medicament dissolves case of claim 1, characterized by, the inside one end that is close to inlet pipe (3) of water tank (1) is equipped with float piece (28), water tank (1) upper end is equipped with the through hole, float piece (28) upper end fixedly connected with connecting rod (101), the one end that float piece (28) were kept away from to connecting rod (101) runs through in the through hole, and rotates and be connected with the restriction wheel, the restriction wheel and connecting rope (27) position phase-match, pass through sealing member sealing connection between through hole and connecting rod (101).

6. The chemical dissolving tank for sewage treatment according to claim 1, wherein a receiving wheel (303) is connected to one side of the feeding pipe (3) close to the cylinder (4), and the connecting rope (27) is slidably connected to the receiving wheel (303).

7. The chemical dissolving tank for sewage treatment according to claim 1, wherein the surface of the material controlling plate (301) is provided with a sealing rubber pad.

8. The chemical dissolving tank for sewage treatment according to claim 1, wherein a water level observation window (8) is arranged at the upper end of one side of the water tank (1) close to the water inlet pipe (7).

9. The chemical dissolving tank for sewage treatment according to any of claims 1 to 8, wherein the lower end of the support rod (22) is rotatably connected with a ground bolt (26) through a thread.

10. A chemical feeding method, which adopts the chemical dissolving tank for sewage treatment according to any one of claims 1 to 9, and is characterized by mainly comprising the following steps:

s1, pouring the material into the feeding pipe (3), opening the first valve on the water inlet pipe (7) to fill water into the water tank (1);

s2, after water is injected, a pressure pump (5) is started to pressurize the interior of a water tank (1), water enters a stirring tank (2) through a connecting water pipe (9) under the action of pressure, gas also enters an air cylinder (4) through a hard pipe (401) while the pressure pump (5) pressurizes the water, so that a sealing plate (29) is pushed to move, at the moment, a connecting rope (27) becomes loose, a material control plate (301) moves upwards under the action of a second return spring (302), so that materials can flow out of a gap and are discharged into the stirring tank (2) through a discharge port, and the water and the materials can simultaneously enter the stirring tank (2) in proportion without manpower;

s3, after the water and the materials enter the stirring box (2), a user starts the first motor (13) to drive the spiral stirring rod (20) to rotate, and the water and the materials are driven by the spiral stirring rod (20) to roll up and down, so that the water and the materials are dissolved more fully, the medicament dissolving speed is accelerated, and the working efficiency is improved.

And S4, after stirring, the user can connect the hose to the medicine outlet of the medicine outlet pipe (24) in a sealing way, and open the second valve to discharge the dissolved medicine into the sewage treatment tank through the hose, thereby purifying the sewage.