CN221062559U - Flocculant configuration and supply device - Google Patents

Abstract

The utility model provides a flocculating agent configuration and supply device, which comprises a mixing tank, a using tank, a preparing tank, a feeding device for quantitatively conveying flocculating agent particles aiming at the preparing tank and a water injection pipeline for conveying desalted water aiming at the preparing tank, wherein the feeding device comprises a feeding device and a water injection pipeline; the discharge ports of the preparation tank and the use tank are respectively provided with a conveying valve, the outlet ends of the two conveying valves are respectively connected with the inlet end of the pumping assembly, and the outlet end of the pumping assembly is connected with the mixing tank; a balance valve is arranged between the preparation tank and the discharge port of the use tank, and the preparation tank is communicated with the use tank when the balance valve is opened; and stirrers are arranged in the preparation tank and the mixing tank. According to the utility model, quantitative and proportional addition of flocculant particles is realized through the feeding device, so that the configuration concentration of the flocculant is ensured to meet the requirement; the use tank and the preparation tank are alternately used through the balance valve, so that the flocculating agent supply of the device can be realized without stopping, and the risk of outage caused by overlong flocculating agent configuration time is solved.

Description

Flocculant configuration and supply device

Technical Field

The utility model relates to the technical field of flocculant configuration, in particular to a device for preparing and supplying a flocculant.

Background

In the acid regeneration desilication process, a flocculant preparing and adding system is generally provided with three parts of a flocculant preparing tank, a flocculant using tank and a mixing tank which are independently arranged and connected in series in sequence, wherein a supply pump is arranged between the using tank and the mixing tank for pumping the flocculant. In addition, in order to save space, some manufacturers cancel the mixing tank, directly throw the flocculant of the using tank into the reaction tank, and once the system is stopped, sediment caking is generated in the reaction tank, and the reaction tank needs to be cleaned regularly or special people are arranged to stare at the site to perform configuration in time.

The two flocculant configuration and addition systems mainly have the following problems in the actual production process:

1. When the liquid level of the flocculant using tank is low, a valve of a preparation tank needs to be manually opened to the site for timely replenishment;

2. When the liquid level of the flocculant preparation tank is low, the flocculant preparation tank needs to be configured on the manual site, and water is added while feeding, so that the problem of uneven configuration is easy to occur, and the effect of influencing flocculation due to local caking of the flocculant is caused;

3. At least stirring for 2 hours is needed for preparing the flocculant, and the possibility of flocculant outage occurs once the flocculant is prepared or supplemented in time;

4. the three independent devices have large occupied area and are inconvenient to maintain.

In view of the foregoing, there is a great need for an improved flocculant placement and supply apparatus that addresses the problems of the prior art.

Disclosure of utility model

The utility model aims to provide a device for preparing and supplying a flocculating agent, which aims to solve the problem that the flocculating agent is easy to be supplied intermittently when preparing or supplementing the flocculating agent in the prior art, and the specific technical scheme is as follows:

A flocculant allocation and supply device, comprising a mixing tank, a using tank, a preparing tank, a feeding device for conveying flocculant particles to the preparing tank and a water injection pipeline for conveying desalted water to the preparing tank; the discharge ports of the preparation tank and the use tank are respectively provided with a conveying valve, the outlet ends of the two conveying valves are respectively connected with the inlet end of the pumping assembly, and the outlet end of the pumping assembly is connected with the mixing tank; a balance valve is arranged between the preparation tank and the discharge port of the use tank, and the preparation tank is communicated with the use tank when the balance valve is opened; and stirrers are arranged in the preparation tank and the mixing tank.

In the above technical solution, preferably, the preparation tank is provided with a funnel, the funnel is located below the outlet end of the feeding device, and the flocculant particles enter the preparation tank through the funnel; the water injection pipeline is also used for injecting desalted water into the funnel when flocculant particles are added.

In the above technical solution, preferably, the water injection pipeline includes a first branch for injecting desalted water into the preparation tank and a second branch for injecting desalted water into the funnel, and the first branch and the second branch are respectively provided with a control valve.

In the above technical scheme, preferably, the balance valve, the control valve and the delivery valve are all electromagnetic ball valves.

In the above technical scheme, preferably, the feeding device comprises a screw conveyer and a storage box, wherein a feed inlet of the screw conveyer is connected with the storage box, and the screw conveyer is used for quantitatively adding flocculant particles into the preparation tank.

In the above technical solution, preferably, the use tank and the preparation tank are both provided with a liquid level meter for detecting the liquid level.

In the above technical solution, preferably, the pumping assembly comprises at least two feed pumps arranged in parallel, a single feed pump being provided with ball valves at both its inlet and outlet ends.

In the above technical solution, preferably, the agitator is driven by an electric motor or a hydraulic motor.

In the above technical solution, preferably, a partition plate is provided inside the tank body to divide the tank body into a mixing tank, a use tank and a preparation tank.

The technical scheme of the utility model has the following beneficial effects:

In the flocculant allocation and supply device, the feeding device comprises the storage box and the screw conveyor, and the flocculant particles are quantitatively and proportionally added by controlling the rotation times of the screw conveyor, so that the allocation flocculant concentration can accurately meet the production requirement. The preparation tank and the use tank are communicated through the balance valve, when the flocculant in the use tank is used up to reach a low liquid level, the balance valve can be automatically opened to balance the flocculant in the preparation tank into the use tank, then the preparation tank and the residual flocculant in the use tank can be sequentially pumped into the mixing tank, the flocculant can be configured in the preparation tank after the flocculant in the preparation tank is used up to reach the low liquid level (at this time, the flocculant is supplied by the use tank to be pumped into the mixing tank), the flocculant supply of the device can be realized without stopping through the alternate use of the use tank and the preparation tank, and the risk of outage caused by overlong flocculant configuration time is solved.

In addition to the objects, features and advantages described above, the present utility model has other objects, features and advantages. The present utility model will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of a flocculant arrangement and supply apparatus of the present utility model;

Wherein, 1, a first delivery valve, 2, a balance valve, 3, a second delivery valve, 4, a supply pump, 5, a mixing tank, 6, a first stirrer, 7, a first liquid level meter, 8 and a using tank, 9, a second liquid level meter 10, a second stirrer 11, a funnel 12, a screw conveyer 13, a storage box 14, a water injection pipeline 15 and a preparation tank.

Detailed Description

The present utility model will be described more fully hereinafter in order to facilitate an understanding of the present utility model, and preferred embodiments of the present utility model are set forth. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Examples:

Referring to fig. 1, the present embodiment provides a flocculant arrangement and supply apparatus, including a mixing tank 5, a use tank 8, a preparation tank 15, a feeding device for feeding flocculant particles to the preparation tank 15, and a water injection line 14 for feeding desalted water to the preparation tank 15; the discharge ports of the preparation tank 15 and the use tank 8 are respectively provided with a delivery valve, the outlet ends of the two delivery valves are respectively connected with the inlet end of a pumping assembly, and the outlet end of the pumping assembly is connected with the mixing tank 5; a balance valve 2 is arranged between the preparation tank 15 and a discharge hole of the use tank 8, and the preparation tank 15 is communicated with the use tank 8 when the balance valve 2 is opened; the preparation tank 15 and the mixing tank 5 are respectively provided with a stirrer, specifically, the preparation tank 15 is provided with a stirrer II 10 for stirring flocculant particles and desalted water, and the mixing tank 5 is provided with a stirrer I6 for stirring and mixing waste acid and flocculant from the reaction tank.

Specifically, in this embodiment, the discharge port of the preparation tank 15 is provided with a first delivery valve 1, and the discharge port of the use tank 8 is provided with a second delivery valve 3; one end of the balance valve 2 is connected between the discharge port of the preparation tank 15 and the first delivery valve, the other end of the balance valve 2 is connected between the discharge port of the use tank 8 and the second delivery valve 3, and the preparation tank and the use tank are communicated after the balance valve 2 is opened, so that the liquid levels of the preparation tank and the use tank are consistent, and in the embodiment, the function of opening the balance valve is to enable the solution (flocculant solution after mixing flocculant particles and desalted water) in the preparation tank 15 to enter the use tank 8.

In this embodiment, the pumping of the flocculant in the preparation tank or the use tank into the mixing tank 5 is achieved by a pumping assembly, whereby the mixing of the flocculant with the spent acid from the reaction tank is achieved in the mixing tank.

Preferably, a funnel 11 is arranged on the preparation tank 15, the funnel 11 is positioned below the outlet end of the feeding device, and the flocculant particles enter the preparation tank 15 through the funnel 11; the water injection pipeline 14 is further used for injecting desalted water into the funnel 11 when adding flocculant particles, and the siphon effect is generated by injecting desalted water into the funnel 11, so that the flocculant particles in the funnel 11 are completely sucked into the preparation tank 15 smoothly.

Specifically, the water injection pipeline 14 includes a first branch and a second branch for injecting desalted water into the preparation tank 15 and the funnel 11, and the first branch and the second branch are respectively provided with control valves, and the control valves are respectively arranged to independently control the on-off of the first branch and the second branch, so that the desalted water injection into the preparation tank and the funnel can be independently controlled.

Specifically, the balance valve 2, the control valve and the conveying valve are all electromagnetic ball valves, and the electromagnetic ball valves are selected to realize automatic control of the on-off of the ball valves, so that the operation complexity of the device is reduced.

Specifically, the feeding device comprises a screw conveyer 12 and a storage box 13, wherein a feed inlet of the screw conveyer 12 is connected with the storage box 13, a discharge outlet of the screw conveyer is positioned above the hopper 11, and the screw conveyer 12 is used for quantitatively adding flocculant particles into the preparation tank 15. The storage box 13 is used for storing flocculant particles, a pressure switch can be arranged in the storage box, and when the flocculant particles are insufficient, workers can be reminded of adding the flocculant particles into the storage box, so that continuous supply of the flocculant particles is ensured; during charging, the spiral conveyor rotates according to set times to ensure that the flocculant particles added into the preparation tank 15 are equal each time, the proportion of the flocculant particles added each time and the desalted water injected into the preparation tank is configured, the concentration of the flocculant can be accurately configured, and the production requirement is met.

Specifically, the use tank 8 and the preparation tank 15 are both provided with a liquid level meter for detecting a liquid level, as shown in fig. 1, the use tank 8 is provided with a first liquid level meter 7 for detecting a liquid level in the use tank 8, and the preparation tank 15 is provided with a second liquid level meter 9 for detecting a liquid level in the preparation tank 15. The liquid level heights of the using tank and the preparing tank are detected by the liquid level meter I and the liquid level meter II respectively, so that automatic control of flocculant allocation in the preparing tank and automatic control of on-off of the balance valve can be realized.

Specifically, the pumping assembly includes at least two feed pumps 4 that set up in parallel, and single feed pump 4 all sets up the ball valve (this ball valve is not shown in the drawings, and this ball valve can be manual ball valve or electromagnetic field) in its entry end and exit end department, sets up the ball valve and conveniently closes the pipeline when dismantling the maintenance to the feed pump, prevents that the flocculating agent from revealing. During normal operation, only one feed pump 4 is required to pump flocculant into the mixing tank, and redundant arrangement of the feed pumps can realize that when the working feed pump 4 has a shutdown fault, the feed pump can be switched to the standby feed pump 4 in time to work, so that the shutdown time of the device is reduced.

Of course, in some embodiments the pumping assembly may contain only one feed pump 4, and the feed pump 4 is provided with ball valves at both the inlet and outlet ends; it is also possible to provide only one feed pump 4 to meet the normal operating requirements of the device, but the device requires maintenance at a standstill when the feed pump 4 fails at a standstill.

Preferably, the stirrer is driven by a motor or a hydraulic motor, and stirring and mixing of the solution are realized by driving the stirrer to rotate; the stirrer and its driving member are all of the prior art.

In this embodiment, preferably, a partition plate is provided inside the tank body to divide the tank body into a mixing tank 5, a use tank 8 and a preparation tank 15, that is, the mixing tank, the use tank and the preparation tank are combined inside one large tank body, and the mixing tank, the use tank and the preparation tank are obtained by partitioning the space inside the large tank body, so that the problem that the mixing tank, the use tank and the preparation tank are independently provided with occupied space and large space can be solved.

Of course, in some embodiments it is also possible to provide the mixing tank, the use tank and the preparation tank independently, and the problem of large space occupation is solved by arranging three tanks side by side or stacking.

Preferably, the embodiment further includes a control unit for realizing control, a control panel, and other devices, where the control unit may be a single chip microcomputer or a PLC, and the automatic configuration of the device and the supply of the flocculant are realized through the control unit, and the circuit structure for realizing the automatic control is referred to in the prior art.

The technical scheme of the embodiment is specifically as follows:

And the operators supplement flocculant particles according to the prompt of the pressure switch in the storage box so as to ensure the continuous supply of the flocculant particles.

When the second level gauge 9 in the preparation tank 15 gives an alarm of low level (lower than 10%), an operator presses a button of "flocculant configuration" to perform flocculant configuration, and the specific configuration process is as follows:

Automatically replenishing water (i.e., desalted water) to a liquid level of 65% by a pair of by-pass preparation tanks 15; the second stirrer 10 is started, the spiral conveyor 12 starts to add flocculant particles into the preparation tank 15 according to set rotation times, and meanwhile, desalted water is injected into the funnel 10 through the second branch to generate a siphon effect;

After the flocculant particles are added, continuously supplementing water to the preparation tank 15, and when the liquid level reaches 90%, automatically closing the first branch and the second branch to stop water injection; the second stirrer 10 is automatically stopped after working for 150min, so that the concentration of the flocculant can be accurately controlled.

In the production process, the preparation tank and the use tank are used alternately, and the process is as follows:

1. Firstly, using a flocculating agent in a tank 8, automatically opening a second conveying valve 3, and pumping the flocculating agent into a mixing tank 5 by using a pumping assembly (namely a supply pump 4) to mix the flocculating agent with waste acid from the reaction tank;

2. When the liquid level is detected to be lower than 10% by using the first liquid level meter 7 in the tank 8, the first conveying valve 1 of the preparation tank is automatically opened, the second conveying valve 3 of the preparation tank is automatically closed, and the flocculant in the preparation tank 15 is pumped into the mixing tank 5 through the pumping assembly; at the same time the balancing valve 2 is automatically opened, the liquid in the preparation tank 15 will be balanced into the use tank 8, and after the liquid level is balanced the balancing valve 2 is automatically closed.

3. When the liquid level meter II 9 in the preparation tank 15 detects that the liquid level is lower than 10%, an alarm is given, the conveying valve II 3 of the use tank is automatically opened, the conveying valve I1 of the preparation tank is automatically closed, and the flocculant in the use tank 8 is pumped into the mixing tank through the pumping assembly. The operator then confirms that the flocculant is being placed in the preparation tank by pressing the "flocculant placement" button.

4. The steps 1-3 are circulated in sequence, so that no conflict between flocculant allocation and use can be met, and the alternate use of the preparation tank and the use tank can be ensured.

The technical scheme of the utility model has the following effects:

In the flocculant allocation and supply device, the feeding device comprises the storage box and the screw conveyor, and the flocculant particles are quantitatively and proportionally added by controlling the rotation times of the screw conveyor, so that the allocation concentration of the flocculant can accurately meet the production requirement; the preparation tank and the use tank are communicated through the balance valve, when the flocculant in the use tank is used up to reach a low liquid level, the balance valve is opened to balance the flocculant in the preparation tank into the use tank, then the preparation tank and the residual flocculant in the use tank can be pumped into the mixing tank in sequence, the flocculant can be configured in the preparation tank after the flocculant in the preparation tank is used up to reach the low liquid level (at this time, the flocculant is provided by the use tank to be pumped into the mixing tank), the flocculant supply of the device can be realized without stopping through the alternate use of the use tank and the preparation tank, and the risk of outage caused by overlong flocculant configuration time is solved.

By integrating the preparation tank, the use tank and the mixing tank into one large tank, the floor space which is originally occupied by the independent arrangement of the preparation tank, the use tank and the mixing tank is reduced; through the redundant arrangement of the supply pumps, the single supply pump can be switched to the standby supply pump to work in time when the single supply pump fails, and the problem that a device needs to be stopped when the failed supply pump is maintained is solved.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (9)

1. A device for configuring and supplying flocculant, which is characterized by comprising a mixing tank (5), a using tank (8), a preparing tank (15), a feeding device for conveying flocculant particles to the preparing tank (15) and a water injection pipeline (14) for conveying desalted water to the preparing tank (15); delivery valves are arranged at the discharge ports of the preparation tank (15) and the use tank (8), the outlet ends of the two delivery valves are connected with the inlet end of a pumping assembly, and the outlet end of the pumping assembly is connected with the mixing tank (5); a balance valve (2) is arranged between the preparation tank (15) and the discharge port of the use tank (8), and the preparation tank (15) is communicated with the use tank (8) when the balance valve (2) is opened; the preparation tank (15) and the mixing tank (5) are respectively provided with a stirrer.

2. The flocculant arrangement and supply device according to claim 1, characterized in that the preparation tank (15) is provided with a funnel (11), the funnel (11) being located below the outlet end of the feeding device, the flocculant particles entering the preparation tank (15) through the funnel (11); the water injection pipeline (14) is also used for injecting desalted water into the hopper (11) when flocculant particles are added.

3. The flocculant arrangement and supply device according to claim 2, characterized in that the water injection line (14) comprises a first branch for injecting desalinated water into the preparation tank (15) and a second branch for injecting desalinated water into the hopper (11), the first and second branches being provided with control valves, respectively.

4. A flocculant arrangement and supply device according to claim 3, characterized in that the balancing valve (2), the control valve and the transfer valve are all solenoid valves.

5. The flocculant arrangement and supply device according to claim 1, characterized in that the feeding device comprises a screw conveyor (12) and a storage tank (13), a feed opening of the screw conveyor (12) being connected to the storage tank (13), the screw conveyor (12) being used for dosing flocculant particles into the preparation tank (15).

6. The flocculant arrangement and supply device according to claim 1, characterized in that a level gauge for detecting the liquid level is provided in both the use tank (8) and the preparation tank (15).

7. A flocculant arrangement and supply device according to claim 1, characterized in that the pumping assembly comprises at least two supply pumps (4) arranged in parallel, a single supply pump (4) being provided with ball valves at both its inlet and outlet ends.

8. The flocculant placement and supply device of claim 1, wherein the agitator is driven by an electric or hydraulic motor.

9. The apparatus for the arrangement and supply of a flocculant according to any one of claims 1 to 8, characterized in that a partition is provided inside the tank, dividing the tank inside into a mixing tank (5), a use tank (8) and a preparation tank (15).