A settling agent dispensing device and system

Abstract

This utility model provides a sedimentation reagent preparation device and system, relating to the field of coal slurry sedimentation technology. It includes a reagent preparation module and a quantitative dosing module. The reagent preparation module includes a reagent preparation tank, a stirring unit, and a heating unit. The stirring unit and heating unit are located inside the reagent preparation tank, and the outside of the reagent preparation tank is provided with an insulation layer for heat preservation. The quantitative dosing module includes a dosing unit and a water dosing unit. The output ports of the dosing unit and the water dosing unit are respectively connected to the input port of the reagent preparation tank. A storage tank is connected to a mixing tank via a dosing motor, and the mixing tank is connected to the reagent preparation tank via a dosing fan. This invention alleviates the technical problems of existing preparation devices lacking insulation equipment and requiring manual addition of dry powder, achieving precise control of the addition ratio of polyacrylamide powder and water, enabling the preparation of a target concentration solution in a short time, and ensuring the normal operation of the concentration system.

Description

Technical Field

[0001] This utility model relates to the field of coal slurry sedimentation technology, and in particular to a sedimentation agent preparation device and system. Background Technology

[0002] During coal preparation, a suspension containing coal slime particles, known as coal slime water, is generated. At the coal preparation plant, a polyacrylamide solution is typically added to the coal slime water. The polyacrylamide solution adsorbs the suspended particles in the coal slime water, thereby accelerating the settling of the coal slime particles and achieving solid-liquid separation of the coal slime water.

[0003] In the existing technology, heat is transferred to the heating box through the medium heating chamber and heat exchange chamber to heat the solution and accelerate the preparation of polyacrylamide solution. However, the preparation device is not equipped with a heat preservation device. Maintaining the temperature of the polyacrylamide solution consumes a lot of electrical energy, and the dry powder needs to be added manually, which may cause the dry powder to agglomerate or accumulate locally, affecting the solution concentration. In addition, the equipment cost of this preparation device is too high, the space occupied is too large, and there are many delicate parts in the equipment, making it difficult to adapt to the harsh environment of coal preparation plant. Utility Model Content

[0004] The purpose of this invention is to provide a sedimentation agent preparation device and system to alleviate the technical problems of existing preparation devices lacking heat preservation equipment and requiring manual addition of dry powder.

[0005] In a first aspect, this utility model provides a sedimentation reagent preparation device, comprising: a reagent preparation module and a quantitative dosing module, wherein the quantitative dosing module is connected to the reagent preparation module;

[0006] The reagent preparation module includes a reagent preparation box, a stirring unit, and a heating unit. The stirring unit and the heating unit are located inside the reagent preparation box, and the outside of the reagent preparation box is provided with an insulation layer for heat preservation.

[0007] The quantitative dosing module includes a dosing unit and a water dosing unit. The output ports of the dosing unit and the water dosing unit are respectively connected to the input port of the reagent preparation tank. The dosing unit includes a dosing motor, a storage tank, a mixing tank, and a dosing fan. The storage tank is connected to the mixing tank through the dosing motor, and the mixing tank is connected to the reagent preparation tank through the dosing fan.

[0008] Optionally, the reagent preparation device further includes a reagent storage module, which is connected to the reagent preparation module. The reagent storage module includes a reagent storage box and a dispensing pipe. The reagent storage box is connected to the reagent preparation box, the dispensing pipe is located on one side of the reagent storage box, and the outside of the reagent storage box is provided with an insulation layer for heat preservation.

[0009] Optionally, the stirring unit includes a stirring drive and a stirring element. The stirring drive is fixedly connected to the reagent preparation box, the stirring element is located inside the reagent preparation box, and one end of the stirring element is connected to the output shaft of the stirring drive.

[0010] Optionally, the heating unit includes a heating element and a temperature sensor, with the temperature sensor and heating element located inside the reagent preparation box, and the temperature sensor connected to the heating element.

[0011] Optionally, the reagent preparation tank is equipped with a pressure relief valve and a first level gauge, the first level gauge being located at the lowest liquid level in the reagent preparation tank, and the pressure relief valve being located above the reagent preparation tank.

[0012] Optionally, the drug preparation device further includes a transfer valve, which is located between the drug outlet of the drug preparation box and the drug inlet of the drug storage box.

[0013] Optionally, the medicine storage tank is equipped with a second level gauge, which is located at the lowest level of the medicine storage tank.

[0014] Alternatively, the insulation material of the insulation layer may be rock wool, polyurethane foam, aluminum silicate fiber, or polystyrene foam.

[0015] Secondly, this utility model also provides a sedimentation agent preparation system, including a controller and a sedimentation agent preparation device, wherein the sedimentation agent preparation device is the aforementioned sedimentation agent preparation device; the controller is connected to a stirring unit, a heating unit, a dosing unit and a water adding unit respectively.

[0016] Optionally, the controller is connected to the first level gauge and the transfer valve respectively; when the first level gauge detects that the liquid level in the drug storage tank is lower than the preset value, the controller controls the transfer valve to transfer the drug solution in the drug preparation tank to the drug storage tank.

[0017] This utility model provides a sedimentation reagent preparation device and system, which realizes reagent preparation through a reagent preparation module and a quantitative dosing module, thereby alleviating the technical problems of existing preparation devices lacking heat preservation equipment and requiring manual addition of dry powder. It achieves precise control of the addition ratio of polyacrylamide powder and water, and can prepare a solution of the target concentration in a short time, ensuring the normal operation of the concentration system. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a sedimentation agent preparation device provided in an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of a sedimentation agent preparation system provided in an embodiment of the present invention.

[0021] Icons: 110-Reagent preparation tank; 120-Stirring unit; 130-Heating unit; 140-Temperature sensor; 150-Pressure relief valve; 160-First level gauge; 210-Dosing motor; 220-Storage tank; 230-Dosing fan; 240-Mixing tank; 250-Dosing inlet pipe; 310-Water valve; 320-Water inlet pipe; 410-Reagent storage tank; 420-Second level gauge; 430-Dosing outlet; 440-Dosing pump; 500-Transfer valve; 600-Controller. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] Figure 1 This is a schematic diagram of a sedimentation dosing preparation device provided in an embodiment of the present invention, as shown below. Figure 1 As shown, the reagent preparation device includes a reagent preparation module and a quantitative dosing module. The quantitative dosing module is connected to the reagent preparation module. The reagent preparation module is used to configure the concentration of the polyacrylamide solution used for sedimentation and to maintain the temperature of the polyacrylamide solution. The quantitative dosing module is used to add an appropriate amount of reagent and water to the reagent preparation module according to the required concentration of the polyacrylamide solution.

[0025] The reagent preparation module includes a reagent preparation box 110, a stirring unit 120, and a heating unit 130. The stirring unit 120 and the heating unit 130 are located inside the reagent preparation box 110. The outside of the reagent preparation box 110 is provided with an insulation layer for heat preservation, which is used to slow down the temperature drop inside the reagent preparation box 110. The stirring unit 120 is used to mix water and reagents. The heating unit 130 is used to bring the temperature of the reagents inside the reagent preparation box 110 to a preset temperature, which is generally 20-30 degrees Celsius.

[0026] The quantitative dosing module includes a dosing unit and a water dosing unit. The output ports of the dosing unit and the water dosing unit are respectively connected to the input port of the reagent preparation tank 110. The dosing unit includes a dosing motor 210, a storage tank 220, a mixing tank 240 and a dosing fan 230. The storage tank 220 is connected to the mixing tank 240 through the dosing motor 210, and the mixing tank 240 is connected to the reagent preparation tank 110 through the dosing fan 230.

[0027] In this embodiment, depending on whether the dosage in the drug storage tank 410 is sufficient, if not, the drug is prepared through the drug preparation tank 110. First, the required clean water is added to the drug preparation tank 110 through the water addition unit. Then, the stirring unit 120 is started. Next, it is determined whether the temperature of the clean water in the drug preparation tank 110 is at the preset temperature. If not, the clean water is heated by the heating unit 130 until the preset temperature is reached, and then the heating is stopped. Finally, the required powdered polyacrylamide is added to the drug preparation tank 110 through the dosing unit. When the dosing fan 230 stops, the stirring unit 120 continues to run until the preset time is reached and then stops running, thus completing one drug preparation.

[0028] The sedimentation reagent preparation device provided in this application can quickly prepare a polyacrylamide solution of a specified concentration for use in the on-site thickening system of a coal preparation plant, avoiding the entry of coal slurry into the circulating water due to inadequate sedimentation of coal slurry, which would interfere with the separation and affect the clean coal index.

[0029] In an optional embodiment, the drug preparation device further includes a drug storage module connected to the drug preparation module. The drug storage module includes a drug storage box 410 and a drug dispensing pipe. The drug storage box 410 is connected to the drug preparation box 110. The drug dispensing pipe is located on one side of the drug storage box 410. An insulation layer is provided on the outside of the drug storage box 410 for heat preservation. The insulation layer is used to slow down the temperature drop inside the drug storage box 410.

[0030] In this embodiment, after preparing a pre-concentrated polyacrylamide agent through the agent preparation box 110, the agent in the agent preparation box 110 is transferred to the agent storage box 410 for storage, and the agent in the agent storage box 410 is transported to the concentrator through the dispensing pipe on the agent storage box 410.

[0031] Furthermore, one end of the dispensing pipe is connected to the concentrator, and the other end is connected to the reagent storage tank 410 via the dosing pump 440. The dispensing pipe is located at the bottom of the reagent storage tank 410, facilitating smooth extraction of the reagent. When the concentrator is operating, the dispensing pipe accurately delivers the reagent stored at the bottom to the concentrator via the dosing pump 440, achieving efficient reagent addition.

[0032] In one optional embodiment, the stirring unit 120 includes a stirring drive and a stirring element. The stirring drive is fixedly connected to the reagent preparation tank 110, and the stirring element is located inside the reagent preparation tank 110. One end of the stirring element is connected to the output shaft of the stirring drive. The heating unit 130 includes a heating element and a temperature sensor 140. The temperature sensor 140 and the heating element are respectively located inside the reagent preparation tank 110, and the temperature sensor 140 is connected to the heating element. The reagent preparation tank 110 is equipped with a pressure relief valve 150 and a first level gauge 160. The first level gauge 160 is located at the lowest liquid level position of the reagent preparation tank 110, and the pressure relief valve 150 is located above the reagent preparation tank 110.

[0033] Furthermore, the mixing unit 120 includes, but is not limited to, paddle mixers, turbine mixers, propeller mixers, anchor mixers, frame mixers, and screw mixers.

[0034] Furthermore, the heating unit 130 includes, but is not limited to, steam heating and thermal conduction heating.

[0035] In this embodiment, the first level gauge 160 detects whether the liquid level in the reagent preparation tank 110 is lower than a preset value. If so, the required clean water is added to the reagent preparation tank 110 through the water addition unit. The temperature sensor 140 detects the temperature of the clean water. If the water temperature does not reach the preset temperature, the heating unit 130 is controlled to heat the clean water. When the water temperature reaches the preset temperature, the stirring unit 120 is started and the required reagent is added to the reagent preparation tank 110 through the dosing unit. During the stirring process, when the pressure in the reagent preparation tank 110 is greater than the preset pressure value, the pressure relief valve 150 is activated to ensure that the pressure in the reagent preparation tank 110 is equal to the external pressure.

[0036] In an optional embodiment, the drug preparation device further includes a transfer valve 500, which is located between the drug outlet 430 of the drug preparation box 110 and the drug inlet of the drug storage box 410.

[0037] The medicine storage tank 410 is equipped with a second level gauge 420, which is located at the lowest level of the medicine storage tank 410.

[0038] In this embodiment, one end of the transfer valve 500 is located at the bottom of the drug preparation box 110, and the other end is located at the top of the drug storage box 410. The transfer valve 500 connects the drug preparation box 110 and the drug storage box 410. When the drug preparation box 110 completes the drug preparation, the transfer valve 500 is controlled to transport the drug in the drug preparation box 110 to the drug storage box 410.

[0039] The second level gauge 420 is used to detect the dosage of the drug in the drug storage tank 410. If the dosage of the drug in the drug storage tank 410 does not meet the dosage required by the current concentrator, the drug needs to be prepared on-site through the drug preparation tank 110. If the dosage of the drug in the drug storage tank 410 meets the dosage required by the current concentrator, the drug in the drug storage tank 410 is transported to the concentrator through the drug outlet pipe by the dosing pump 440.

[0040] In one optional embodiment, the dosing unit includes a dosing motor 210, a storage tank 220, a mixing tank 240, and a dosing fan 230. The storage tank 220 is connected to the mixing tank 240 via the dosing motor 210, and the mixing tank 240 is connected to the reagent preparation tank 110 via the dosing fan 230.

[0041] In this embodiment, the required agent in the storage tank 220 is transported to the mixing tank 240 by the dosing motor 210. After the added agent is mixed in the mixing tank 240, the mixed agent is transported to the agent preparation tank 110 by the dosing fan 230 and the inlet pipe 250.

[0042] In one optional embodiment, the water supply unit includes a water supply valve 310, a water inlet pipe 320, and a storage tank, which is connected to the reagent preparation tank 110 via the water supply valve 310 and the water inlet pipe 320.

[0043] In one alternative embodiment, the insulation material of the insulation layer includes, but is not limited to, rock wool, polyurethane foam, aluminum silicate fiber, and polystyrene foam.

[0044] Furthermore, the insulation layer can also be insulated by steam or by heating.

[0045] The sedimentation agent preparation device provided in this embodiment performs the following agent preparation process:

[0046] 1. Determine whether the dosage of the medicine in the medicine storage tank is sufficient by using the second level gauge in the medicine storage tank. If it is sufficient, control the dosing pump to deliver the medicine to the concentrator; if it is insufficient, start preparing the solution through the medicine preparation tank.

[0047] 2. Obtain the liquid level of the reagent preparation tank through the first liquid level gauge. If it is lower than the preset value, add the required clean water to the reagent preparation tank through the water addition unit and turn on the stirring unit.

[0048] 3. The temperature sensor detects the water temperature in the reagent preparation tank. If it is lower than the preset temperature, the heating unit will start and stop heating once the water temperature reaches the preset temperature.

[0049] 4. Add the required dry powder agent to the agent preparation tank through the dosing unit until the dosing fan stops working. Then the stirring unit continues to run until the preset time is reached and then stops running.

[0050] 5. Open the transfer valve to transfer the concentrated medicine in the preparation tank to the storage tank, completing one preparation of medicine.

[0051] Compared with existing dry powder polyacrylamide solution constant temperature heating devices, the sedimentation reagent preparation device provided in this application has a simple structure, no complex parts, and lower overall equipment cost; the equipment occupies a small area and can be placed in the on-site concentration pump room, which not only solves the space occupation problem, but also the concentration pump room can play a role in shock absorption; it is equipped with an automated dry powder addition structure to ensure that the dry powder can be automatically and quantitatively added to the solution; the heating unit is detachable, which can periodically remove scale or replace the heating head, and can directly heat clean water through the heating unit to avoid the problems of heat loss and slow heating speed caused by long heating paths; and insulation material is installed on the outside of the reagent preparation tank and the reagent storage tank to keep the solution warm.

[0052] Figure 2 A schematic diagram of a sedimentation agent preparation system provided in an embodiment of this utility model is shown below. Figure 2 As shown, the system includes a controller 600 and a sedimentation agent preparation device, which is the sedimentation agent preparation device mentioned above; the controller 600 is connected to the stirring unit 120, the heating unit 130, the dosing unit and the water dosing unit respectively.

[0053] In an optional embodiment, the controller 600 is connected to the first level gauge 160 and the transfer valve 500 respectively; when the first level gauge 160 detects that the liquid level in the drug storage tank 410 is lower than a preset value, the controller 600 controls the transfer valve 500 to operate so that the drug solution in the drug preparation tank 110 is transferred into the drug storage tank 410.

[0054] Specifically, after the preparation tank 110 completes the preparation of the drug solution, the controller 600 controls the transfer valve 500 to open, so that the prepared drug solution in the preparation tank 110 is transferred to the drug storage tank 410.

[0055] Furthermore, the medicine storage box 410 is used to store medicine solutions when in operation, while the medicine preparation box 110 is empty when not in operation.

[0056] In one optional embodiment, the sedimentation agent preparation device includes a agent preparation module and a quantitative dosing module, the quantitative dosing module being connected to the agent preparation module; the agent preparation module includes an agent preparation tank 110, a stirring unit 120, and a heating unit 130, the stirring unit 120 and the heating unit 130 being disposed within the agent preparation tank 110; the quantitative dosing module includes a dosing unit and a water adding unit, the output ports of the dosing unit and the water adding unit being respectively connected to the input of the agent preparation tank 110. The dosing unit includes a dosing motor 210, a storage tank 220, a mixing tank 240, and a dosing fan 230. The storage tank 220 is connected to the mixing tank 240 via the dosing motor 210, and the mixing tank 240 is connected to the reagent preparation tank 110 via the dosing fan 230. Both the reagent storage tank 410 and the reagent preparation tank 110 are provided with an insulation layer for heat preservation. The controller 600 is connected to the dosing unit, the stirring unit 120, the heating unit 130, and the water dosing unit.

[0057] In an optional embodiment, the drug preparation device further includes a drug storage module connected to the drug preparation module; the drug storage module includes a drug storage box 410 and a drug dispensing pipe, the drug storage box 410 is connected to the drug preparation box 110, and the drug dispensing pipe is located on one side of the drug storage box 410.

[0058] In one optional embodiment, the stirring unit 120 includes a stirring drive and a stirring element. The stirring drive is fixedly connected to the reagent preparation box 110, the stirring element is located inside the reagent preparation box 110, and one end of the stirring element is connected to the output shaft of the stirring drive.

[0059] In an optional embodiment, the heating unit 130 includes a heating element and a temperature sensor 140, which are located in the reagent preparation box 110, and the temperature sensor 140 is connected to the heating element via a controller 600.

[0060] In one optional embodiment, the reagent preparation tank 110 is provided with a pressure relief valve 150 and a first level gauge 160. The first level gauge 160 is located at the lowest level of the reagent preparation tank 110, and the pressure relief valve 150 is located above the reagent preparation tank 110. The controller 600 is connected to the pressure relief valve 150 and the first level gauge 160 respectively.

[0061] In an optional embodiment, the drug preparation device further includes a transfer valve 500, which is located between the drug outlet 430 of the drug preparation box 110 and the drug inlet of the drug storage box 410.

[0062] In one optional embodiment, the medicine storage tank 410 is provided with a second level gauge 420, which is located at the lowest liquid level of the medicine storage tank 410; the controller 600 is connected to the second level gauge 420.

[0063] In one optional embodiment, the insulation material of the insulation layer is rock wool, polyurethane foam, aluminum silicate fiber, and polystyrene foam.

[0064] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0065] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0066] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0067] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A settling agent dispensing device, characterized by, include: The drug preparation module and the quantitative dosing module are connected to the drug preparation module. The reagent preparation module includes a reagent preparation box, a stirring unit, and a heating unit. The stirring unit and the heating unit are located inside the reagent preparation box, and the outside of the reagent preparation box is provided with a heat preservation layer for heat preservation. The quantitative dosing module includes a dosing unit and a water dosing unit. The output ports of the dosing unit and the water dosing unit are respectively connected to the input port of the reagent preparation tank. The dosing unit includes a dosing motor, a storage tank, a mixing tank, and a dosing fan. The storage tank is connected to the mixing tank through the dosing motor, and the mixing tank is connected to the reagent preparation tank through the dosing fan.

2. The settling agent dispensing apparatus of claim 1, wherein, It also includes a medicine storage module, which is connected to the medicine preparation module; the medicine storage module includes a medicine storage box and a medicine dispensing pipe, the medicine storage box is connected to the medicine preparation box, the medicine dispensing pipe is located on one side of the medicine storage box, and the outside of the medicine storage box is provided with an insulation layer for heat preservation.

3. The settling agent dispensing apparatus of claim 1, wherein, The stirring unit includes a stirring drive and a stirring element. The stirring drive is fixedly connected to the reagent preparation box, the stirring element is located inside the reagent preparation box, and one end of the stirring element is connected to the output shaft of the stirring drive.

4. The settling agent dispensing apparatus of claim 1, wherein, The heating unit includes a heating element and a temperature sensor. The temperature sensor and the heating element are respectively located in the reagent preparation box, and the temperature sensor is connected to the heating element.

5. The settling agent dispensing apparatus of claim 1 or 3, wherein, The reagent preparation tank is equipped with a pressure relief valve and a first liquid level gauge. The first liquid level gauge is located at the lowest liquid level in the reagent preparation tank, and the pressure relief valve is located above the reagent preparation tank.

6. The sedimentation reagent preparation device according to claim 2, characterized in that, It also includes a transfer valve, which is located between the drug outlet of the drug preparation box and the drug inlet of the drug storage box.

7. The sedimentation agent preparation device according to claim 2 or 6, characterized in that, The medicine storage tank is equipped with a second level gauge, which is located at the lowest level of the medicine storage tank.

8. A sedimentation reagent preparation system, characterized in that, It includes a controller and a sedimentation agent preparation device, wherein the sedimentation agent preparation device is the sedimentation agent preparation device as described in any one of claims 1-7; the controller is connected to a stirring unit, a heating unit, a dosing unit and a water dosing unit respectively.

9. The sedimentation reagent preparation system according to claim 8, characterized in that, The controller is connected to the first level gauge and the transfer valve respectively. When the first level gauge detects that the liquid level in the drug storage tank is lower than the preset value, the controller controls the transfer valve to transfer the drug solution in the drug preparation tank to the drug storage tank.

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