CN219526363U - Lime adding device of sewage treatment system - Google Patents

Abstract

The utility model discloses a lime adding device of a sewage treatment system, which comprises a reaction tank and a lime silo, wherein the lime silo is provided with a feed inlet, a gas outlet and a discharge outlet, the feed inlet of the lime silo is connected with a pneumatic pipeline conveying device, the gas outlet of the lime silo is connected with a dust removing device, and the dust removing device is provided with a purified gas outlet; the discharge port of the lime silo is connected with the feed inlet of the reaction tank through a uniform-speed feeding device. The beneficial effects of the utility model are as follows: the device can reduce the lime unloading difficulty of the sewage treatment system, reduce environmental pollution in the unloading process, achieve the purposes of uniform addition, reduction of lime waste, guarantee of stable water quality of the reaction tank, reduce the blocking probability of the reaction tank, reduce the cleaning labor intensity and realize continuous and stable production.

Description

Lime adding device of sewage treatment system

Technical Field

The utility model relates to the technical field of sewage treatment equipment, relates to the addition of sewage treatment agents, and in particular relates to a lime adding device of a sewage treatment system.

Background

The production sewage of chemical industry production enterprises must be treated and discharged. The process flow of the sewage treatment system is mature. The sewage treatment of some production lines needs to add lime to a reaction tank, adjust the composition of substances in the sewage through chemical reaction, neutralize acidic substances and remove some components in a precipitation mode. The lime adding process of the traditional sewage treatment system is as follows: as shown in fig. 2, lime is discharged into the lime storage tank, a regulating plugboard is arranged at the bottom discharge hole of the lime storage tank to control the feeding speed, and lime falls into the disc feeder from the discharge hole of the lime storage tank and then is fed into the reaction tank. The main problems are: the dust is large in the unloading process, the pollution is serious, and the unloading is not clean; by adopting a disc feeding mode, the lime feeding speed is not easy to control and adjust, the feeding amount in the reaction tank is unstable, blockage often occurs, and the cleaning labor intensity is high; after adding, the mixing is not uniform, equipment and pipelines are corroded, blockage is easy to occur, the lime waste is large, the operation cost is high, and adverse effects are brought to the economic benefit of enterprises. For this purpose, the lime adding device is improved based on the actual operating situation.

Disclosure of Invention

In view of this, the present utility model provides a lime adding apparatus for a sewage treatment system.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the lime adding device of the sewage treatment system comprises a reaction tank and is characterized by also comprising a lime silo which is provided with a feed inlet, an air outlet and a discharge outlet,

the feeding port of the lime silo is connected with a pneumatic pipeline conveying device, the air outlet of the lime silo is connected with a dust removing device, and the dust removing device is provided with a purified gas outlet;

the discharge port of the lime silo is connected with the feed inlet of the reaction tank through a uniform-speed feeding device.

Preferably, the pneumatic pipeline conveying device comprises a compressed air source and a transferring device, the transferring device is provided with a transferring bin, the transferring bin is provided with a compressed air inlet and a material outlet, the compressed air inlet of the transferring bin is connected with a high-pressure gas outlet of the compressed air source through a pipeline, and the material outlet of the transferring bin is connected with a feeding hole of the lime silo through a pipeline.

Preferably, the above-mentioned transfer device is a lime transfer vehicle, and the lime transfer vehicle is provided with a closed cargo compartment, and the cargo compartment is the transfer bin.

Preferably, the top of the lime silo is respectively provided with a feed inlet and an air outlet, the feed inlet faces downwards, the air outlet faces upwards, and the bottom of the lime silo is provided with the discharge outlet;

the dust removing device is a cloth bag dust remover.

Preferably, the constant-speed feeding device is an electric screw feeder, a material inlet of the electric screw feeder is connected with a discharge hole of the lime silo, and a feeding hole of the electric screw feeder is connected with a feeding hole of the reaction tank.

Preferably, the reaction tank is provided with a tank cover, the tank cover is provided with a sewage inlet and a lime feed opening, and the lime feed opening is connected with a feed opening of the electric screw feeder;

the bottom of the reaction tank is provided with a sewage outlet, and a stirring device is arranged in the reaction tank.

The beneficial effects of the utility model are as follows: the device can reduce the lime unloading difficulty of the sewage treatment system, reduce environmental pollution in the unloading process, achieve the purposes of uniform addition, reduction of lime waste, guarantee of stable water quality of the reaction tank, reduce the blocking probability of the reaction tank, reduce the cleaning labor intensity and realize continuous and stable production.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a schematic view of a lime adding apparatus of the related art.

Detailed Description

The utility model is further described below with reference to examples and figures.

As shown in fig. 1, the lime adding device of the sewage treatment system comprises a reaction tank 1 and a lime silo 3, wherein the lime silo 3 is provided with a feed inlet, an air outlet and a discharge outlet. The lime silo 3 is characterized in that a pneumatic pipeline conveying device is connected to a feed inlet of the lime silo 3, a dust removing device 4 is connected to an air outlet of the lime silo 3, and a purified gas outlet is formed in the dust removing device 4. The discharge port of the lime silo 3 is connected with the feed inlet of the reaction tank 1 through a uniform-speed feeding device 2.

Thus, the whole process of adding lime to the reaction tank is carried out in a closed environment. The dust emission is avoided, the occurrence of lime water absorption agglomeration in the conveying process is greatly reduced, and the failure occurrence rate of hardening and blocking is reduced. Meanwhile, the uniform feeding device 2 is adopted for feeding, so that the uniformity of lime addition is ensured, and the water quality of the water outlet of the reaction tank 1 is stable.

In this embodiment, pneumatic pipeline conveying device includes compressed air source 6 and transfer device 5, transfer device 5 is provided with and transports storehouse 5a, and this transportation storehouse 5a is provided with compressed air inlet and material export, and the compressed air inlet of this transportation storehouse 5a passes through the pipe connection compressed air source 6's high-pressure gas export, and the material export of this transportation storehouse 5a passes through the pipe connection lime silo 3's feed inlet.

The compressed air source 6 can use a compressed air machine or the compressed air machine and a compressed air storage tank are combined, the compressed air storage tank provides continuous and stable air flow, the air flow is prevented from being interrupted or even reflowed when the compressed air machine is suddenly powered off or stopped in a fault mode, and the stability and the safety of aerodynamic force are ensured.

The transfer device 5 is a lime transfer vehicle provided with a closed cargo compartment, i.e. the transfer bin 5a. The top of carriage sets up compressed air import, sets up the material export near the bottom of carriage, under compressed air effect, lime powder discharges from the material export.

The top of lime silo 3 is provided with feed inlet, gas outlet respectively, the feed inlet is down, the gas outlet is up, the bottom of lime silo 3 is provided with the discharge gate. After entering the lime silo 3 from the feed inlet, lime powder automatically falls under the action of gravity, and air is discharged upwards from the air outlet, so that continuous entry of lime is maintained.

In one embodiment, the dust removing device 4 is a bag-type dust remover. The constant-speed feeding device 2 is an electric screw feeder, a material inlet of the electric screw feeder is connected with a discharge hole of the lime silo 3, and a feeding hole of the electric screw feeder is connected with a feeding hole of the reaction tank 1.

In order to reduce the dust of lime powder in the feeding process of the reaction tank 1 as much as possible, the reaction tank 1 is provided with a tank cover 1a, the tank cover 1a is provided with a sewage inlet and a lime feeding port, and the lime feeding port is connected with a feeding port of the electric screw feeder.

The stirring device 1b is arranged in the reaction tank 1, so that lime is uniformly mixed with sewage after falling into the reaction tank 1. The bottom of the reaction tank 1 is provided with a sewage outlet, and sewage treated by the process enters a downstream treatment process for further treatment.

When the lime transfer vehicle arrives, lime is directly pressed to the lime silo 3 by compressed air, and generated dust is collected by cloth bag dust removal. After the bottom adopts spiral feeding, the feeding of the reaction tank 1 is very stable, and the frequency of blockage is reduced. In the normal operation process, the frequency of screw feeding is regulated, lime is ensured to be stably and uniformly added into the reaction tank, and under the stirring effect, the water quality discharged from the reaction tank 1 is ensured to be continuously and stably input into the subsequent working procedure. The unloading process can be safely and rapidly finished, and environmental pollution is reduced. The spiral feeder is uniform in feeding, the system process index is very stable and convenient to operate, the labor intensity of workers is reduced, the corrosion of the device is greatly reduced, the frequency of blocking and cleaning in the later working procedure is also greatly reduced, the lime consumption is also greatly reduced, the operation cost is reduced, and the economic benefit of enterprises is increased.

Finally, it should be noted that the above description is only a preferred embodiment of the present utility model, and that many similar changes can be made by those skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims (6)

1. The utility model provides a sewage treatment system's lime adds device, includes reaction tank (1), its characterized in that: also comprises a lime silo (3), the lime silo (3) is provided with a feed inlet, an air outlet and a discharge outlet,

the feeding port of the lime silo (3) is connected with a pneumatic pipeline conveying device, the air outlet of the lime silo (3) is connected with a dust removing device (4), and the dust removing device (4) is provided with a purified air outlet;

the discharge port of the lime silo (3) is connected with the feed inlet of the reaction tank (1) through a uniform-speed feeding device (2).

2. The lime addition apparatus of a sewage treatment system according to claim 1, wherein: the pneumatic pipeline conveying device comprises a compressed air source (6) and a transferring device (5), the transferring device (5) is provided with a transferring bin (5 a), the transferring bin (5 a) is provided with a compressed air inlet and a material outlet, the compressed air inlet of the transferring bin (5 a) is connected with the high-pressure gas outlet of the compressed air source (6) through a pipeline, and the material outlet of the transferring bin (5 a) is connected with the feeding port of the lime silo (3) through a pipeline.

3. The lime addition apparatus of a sewage treatment system according to claim 2, wherein: the transfer device (5) is a lime transfer vehicle, and the lime transfer vehicle is provided with a closed cargo compartment, namely a transfer bin (5 a).

4. The lime addition apparatus of a sewage treatment system according to claim 2, wherein: the top of the lime silo (3) is provided with a feed inlet and an air outlet respectively, the feed inlet faces downwards, the air outlet faces upwards, and the bottom of the lime silo (3) is provided with the discharge outlet;

the dust removing device (4) is a cloth bag dust remover.

5. The lime addition apparatus of a sewage treatment system according to claim 2, wherein: the constant-speed feeding device (2) is an electric screw feeder, a material inlet of the electric screw feeder is connected with a discharge hole of the lime silo (3), and a feeding hole of the electric screw feeder is connected with a feeding hole of the reaction tank (1).

6. The lime addition system of claim 5, wherein the lime addition system comprises: the reaction tank (1) is provided with a tank cover (1 a), the tank cover (1 a) is provided with a sewage inlet and a lime feeding port, and the lime feeding port is connected with a feeding port of the electric screw feeder;

the bottom of the reaction tank (1) is provided with a sewage outlet, and a stirring device (1 b) is arranged in the reaction tank (1).