Polyacrylamide pre-infiltration device and polyacrylamide proportioning device

Abstract

The utility model relates to a polyacrylamide pre-infiltrating device and a polyacrylamide proportioning device. The polyacrylamide pre-infiltrating device comprises a polyacrylamide stock bin, the bottom of the polyacrylamide stock bin is communicated with a spiral pusher, an infiltrating assembly is arranged at a discharge port of the spiral pusher, the infiltrating assembly comprises a conical head, the side wall of the conical head is provided with an annular water outlet with an opening facing downwards along the side wall of the conical head, and the annular water outlet is communicated with the bottom of the polyacrylamide stock bin. An annular bulge is arranged on the side wall of the conical head below the annular water outlet in a surrounding manner, the conical head is connected with an infiltration water pipe, and the infiltration water pipe is communicated with the annular water outlet through a channel in the conical head; and the sleeve is coaxially sleeved outside the conical head. The infiltrating water forms a boundary layer on the side wall of the conical head, and the boundary layer infiltrates the polyacrylamide powder sliding down along the side wall of the conical head. The annular bulge is used for generating vortex, so that the polyacrylamide sliding down along the conical head is fully infiltrated by water, and the polyacrylamide enters the water after being infiltrated, and is not caked.

Description

Technical Field

[0001] The utility model relates to the technical field of polyacrylamide impregnation and proportioning devices, in particular to a polyacrylamide pre-impregnation device and a polyacrylamide proportioning device. Background Art

[0002] Polyacrylamide has excellent flocculation and precipitation properties and is widely used in the water treatment field. Polyacrylamide products are difficult to dissolve, easily agglomerate, and easily condense after long-term exposure to air. Currently, most polyacrylamide products on the market are dry powders, generally in the form of granules or fine powders with a mesh size of around 20-80. Such products cannot be added directly to water for flocculation and precipitation, but instead need to be dissolved and prepared before use. The characteristic of polyacrylamide dissolution is that it swells first and then dissolves. When powdered polyacrylamide is added to water, it will immediately swell. If too much is added at one time, agglomeration will occur. Once agglomerated, the polyacrylamide is difficult to dissolve and can easily cause blockage accidents in the dosing equipment. Utility Model Content

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the utility model provides a polyacrylamide pre-impregnation device and a polyacrylamide proportioning device.

[0004] The utility model provides a polyacrylamide pre-impregnation device, comprising: a polyacrylamide silo, the bottom of the polyacrylamide silo is connected to a spiral pusher, an impregnation component is arranged at the discharge port of the spiral pusher, wherein the impregnation component comprises: a conical head, a side wall of the conical head is provided with an annular water outlet with an opening along the side wall of the conical head facing downward, an annular protrusion is arranged around the side wall of the conical head below the annular water outlet, the conical head is connected to an impregnation water pipe, and the impregnation water pipe is connected to the annular water outlet through a channel in the conical head; and a coaxial sleeve is sleeved outside the conical head.

[0005] Furthermore, a silo valve with adjustable opening is provided at the bottom discharge port of the polyacrylamide silo, a material level sensor is provided in the polyacrylamide silo, the driving circuit of the silo valve and the material level sensor are electrically connected to a PLC controller, and the PLC controller is electrically connected to an alarm.

[0006] Furthermore, a first vibration motor is provided at the connection between the spiral pusher and the polyacrylamide silo.

[0007] Furthermore, the infiltration water pipe is connected to a water inlet pipe provided with a first flow metering and regulating mechanism, and the first flow metering and regulating mechanism is electrically connected to a PLC controller.

[0008] In a second aspect, the present application provides a polyacrylamide proportioning device, which uses the polyacrylamide pre-impregnation device, including: a material tank provided with the polyacrylamide pre-impregnation device;

[0009] The chemical tank is connected to the heat-insulating cache water tank, and a second flow metering and regulating component is provided on the pipeline between the heat-insulating cache water tank and the chemical tank, and the second flow metering and regulating component is connected to the PLC controller;

[0010] A stirrer is provided in the material tank;

[0011] A viscometer is provided at the discharge pipe of the material-chemical tank, the discharge pipe of the material-chemical tank is connected to a discharge valve and a discharge pump, and a second liquid level meter is provided in the material-chemical tank.

[0012] Furthermore, a temperature sensor and a heater are provided in the heat-insulating cache water tank, and the temperature sensor and the heater are connected to a PLC controller.

[0013] Furthermore, a first liquid level gauge is provided in the thermal insulation cache water tank, the thermal insulation cache water tank is connected to a water supply pipe provided with an electric water supply valve, and the driving circuits of the first liquid level gauge and the electric water supply valve are connected to a PLC controller.

[0014] Furthermore, the discharge pump is connected to the maturation tank through a pipeline, the discharge pipe of the maturation tank is connected to the electric valve and the delivery pump, the delivery pump is connected to the storage tank through a pipeline, the discharge pipe of the storage tank is provided with a third flow metering and regulating mechanism, a third liquid level gauge is provided in the maturation tank, and a fourth liquid level gauge is provided in the storage tank.

[0015] Furthermore, the sleeve in the impregnation assembly in the polyacrylamide pre-impregnation device is fixed to a vibration base, the vibration base is fixed in the chemical tank, and a second vibration motor is provided on the vibration base.

[0016] The above technical solution provided by the embodiment of the utility model has the following advantages compared with the prior art:

[0017] The bottom of the polyacrylamide silo of the present application is connected to a spiral pusher, and a wetting assembly is provided at the discharge port of the spiral pusher, wherein the wetting assembly includes: a conical head, a side wall of the conical head having an annular water outlet opening facing downward along the side wall of the conical head, an annular protrusion surrounding the side wall of the conical head below the annular water outlet, the conical head connected to an infiltration water pipe, and the infiltration water pipe is connected to the annular water outlet through a channel within the conical head; the conical head is coaxially connected to a sleeve. The conical head disperses the falling polyacrylamide powder over a larger area, and the infiltration water enters through the infiltration water pipe under the control of a first flow metering and regulating mechanism, and is then discharged through the annular water outlet, forming a boundary layer on the side wall of the conical head, which infiltrates the polyacrylamide powder sliding down the side wall of the conical head. The annular protrusion is used to generate vortexes, which utilize the vortex effect to fully infiltrate the polyacrylamide sliding down the conical head. The soaked polyacrylamide falls through the gap between the sleeve and the conical head. After being soaked, the polyacrylamide enters the water without agglomeration, which is beneficial to subsequent dissolution and avoids clogging. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention.

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 This is a schematic diagram of a polyacrylamide pre-impregnation device provided in an embodiment of the present invention.

[0021] Figure 2 A schematic diagram of an infiltration assembly provided in an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of a polyacrylamide proportioning device provided in an embodiment of the present utility model.

[0023] The numbers and meanings in the figure are as follows:

[0024] 1. Polyacrylamide silo, 11. Silo valve;

[0025] 2. Screw pusher, 21. First vibration motor;

[0026] 3. Wetting assembly, 31. Conical head, 32. Annular water outlet, 33. Annular protrusion, 34. Wetting water pipe, 35. Sleeve, 36. First flow metering and regulating mechanism;

[0027] 4. Chemical tank, 41. Viscometer, 42. Discharge valve, 43. Discharge pump, 44. Second liquid level gauge;

[0028] 5. Insulated buffer water tank, 51. Temperature sensor, 52. Heater, 53. First liquid level gauge, 54. Electric water supply valve;

[0029] 6. Second flow metering and regulating component;

[0030] 7. Agitator;

[0031] 8. Maturation tank, 81. Electric valve, 82. Delivery pump, 83. Third liquid level gauge;

[0032] 9. Storage tank, 91. Third flow metering and regulating mechanism, 92. Fourth liquid level gauge. DETAILED DESCRIPTION

[0033] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0034] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0035] Example 1

[0036] See Figure 1 As shown, the embodiment of the present invention provides a polyacrylamide pre-impregnation device, comprising:

[0037] A polyacrylamide silo 1 is provided, the bottom of which is connected to a screw pusher 2, and an infiltration assembly 3 is provided at the discharge port of the screw pusher 2. In a specific implementation, the polyacrylamide silo 1 is bucket-shaped, and a silo valve 11 with an adjustable opening is provided at the bottom discharge port of the polyacrylamide silo 1. A level sensor is provided within the polyacrylamide silo 1, and the drive circuit of the silo valve 11 and the level sensor are electrically connected to a PLC controller, which is electrically connected to an alarm. The silo valve 11 adjusts the discharge speed of the polyacrylamide silo 1 by adjusting the opening. The level sensor uses an ultrasonic level sensor to detect the remaining amount of polyacrylamide in the polyacrylamide silo 1. When the amount is lower than the set amount, the PLC controller prompts through an alarm.

[0038] The screw pusher 2 is driven by a frequency converter, which is connected to a PLC controller. The PLC controller controls the speed of the screw pusher 2 to adjust the speed of supplying polyacrylamide. The polyacrylamide silo 1 and the screw pusher 2 cooperate to supply polyacrylamide at a constant speed. Because polyacrylamide easily agglomerates at the connection between the screw pusher 2 and the polyacrylamide silo 1, the present application provides a first vibration motor 21 at the connection between the screw pusher 2 and the polyacrylamide silo 1. The drive circuit of the first vibration motor 21 is electrically connected to the PLC controller, and the first vibration motor 21 vibrates to break up the agglomerates.

[0039] like Figure 2 As shown, the infiltration component 3 includes: a conical head 31, a side wall of the conical head 31 is provided with an annular water outlet 32, the opening of the annular water outlet 32 is downward along the side wall of the conical head, and an annular protrusion 33 is provided around the side wall of the conical head 31 below the annular water outlet 32, and the top of the annular protrusion 33 is an annular concave. The conical head 31 is connected to the infiltration water pipe 34, and the infiltration water pipe 34 is connected to the annular water outlet 32 through the channel inside the conical head 31; the outer coaxial sleeve 35 of the conical head 31 is connected. The infiltration water pipe 34 is connected to the water inlet pipe provided with a first flow metering and regulating mechanism 36, and the first flow metering and regulating mechanism 36 is electrically connected to the PLC controller. The flow metering and regulating mechanism involved in this application includes a flow meter and a flow regulating valve.

[0040] The conical head 31 disperses the falling polyacrylamide powder over a wider area. Water for infiltration, controlled by the first flow metering and regulating mechanism 36, enters through the infiltration water pipe 34 and is then discharged through the annular water outlet, forming a boundary layer on the sidewall of the conical head 31. This boundary layer infiltrates the polyacrylamide powder sliding down the sidewall of the conical head 31. Furthermore, the annular protrusion 33 is used to generate eddy currents, which, through the action of the eddy currents, fully infiltrates the polyacrylamide sliding down the conical head.

[0041] The soaked polyacrylamide falls through the gap between the sleeve 35 and the conical head 31. After being soaked, the polyacrylamide is put into water without agglomeration, which is conducive to subsequent dissolution and avoids clogging.

[0042] Example 2

[0043] like Figure 3 As shown, an embodiment of the present invention provides a polyacrylamide proportioning device, which uses the polyacrylamide pre-impregnation device described above, including: a material tank 4 provided with the polyacrylamide pre-impregnation device. During specific implementation, the sleeve 35 in the impregnation assembly 3 of the polyacrylamide pre-impregnation device is fixed to a vibration base, and the vibration base is fixed in the material tank 4. The vibration base is provided with a second vibration motor, which can drive the sleeve 35 to vibrate. When stubborn lumps are stuck in the gap between the sleeve 35 and the conical head 31, the sleeve 35 vibrates to break up the stubborn lumps.

[0044] The chemical tank 4 is connected to the heat-insulating cache water tank 5 , and a second flow metering and regulating component 6 is provided on the pipeline between the heat-insulating cache water tank 5 and the chemical tank 4 , and the second flow metering and regulating component 6 is connected to the PLC controller.

[0045] During the specific implementation process, a temperature sensor 51 and a heater 52 are set in the thermal insulation cache water tank 5, and the temperature sensor 51 and the heater 52 are connected to the PLC controller. On the one hand, the thermal insulation cache water tank 5 provides water with a temperature between 5°C and 40°C, and on the other hand, the thermal insulation cache water tank 5 can provide a stable water flow. A first liquid level gauge 53 is set in the thermal insulation cache water tank 5, and the thermal insulation cache water tank 5 is connected to a water supply pipe equipped with an electric water supply valve 54. The driving circuits of the first liquid level gauge 53 and the electric water supply valve 54 are connected to the PLC controller. The thermal insulation cache water tank 5 supports automatic water supply.

[0046] A stirrer 7 is provided within the chemical tank 4; the stirrer 7 stirs and accelerates the dissolution of the polyacrylamide. A second liquid level gauge 44 is provided within the chemical tank 4, and the second liquid level gauge 44 is connected to a PLC controller. The PLC controller determines the liquid level in the chemical tank 4 based on the second liquid level gauge 44, and further controls the addition of water and polyacrylamide during the dissolution process based on the liquid level.

[0047] A viscometer 41 is provided at the discharge pipe of the chemical tank 4, and the viscometer 41 is electrically connected to a PLC controller. The PLC controller determines the dissolution of polyacrylamide based on the viscosity measured by the viscometer 41. The discharge pipe of the chemical tank 4 is connected to a discharge valve 42 and a discharge pump 43. The discharge pump 43 is connected to the maturation tank 8 via a pipeline. The discharge pipe of the maturation tank 8 is connected to an electric valve 81 and a delivery pump 82. The delivery pump 82 is connected to the storage tank 9 via a pipeline. The discharge pipe of the storage tank 9 is provided with a third flow metering and regulating mechanism 91, and the third flow metering and regulating mechanism 91 is electrically connected to the PLC controller. The PLC controller controls the third flow metering and regulating mechanism 91 to quantitatively supply the polyacrylamide solution in the storage tank 9 to the water treatment process. During the specific implementation process, in order to control the transfer of the solution between the chemical tank 4, the maturation tank 8 and the storage tank 9, a third liquid level gauge 83 is provided in the maturation tank 8, and a fourth liquid level gauge 92 is provided in the storage tank 9. The third liquid level gauge 83 and the fourth liquid level gauge 92 are electrically connected to the PLC controller. The PLC controller determines whether the storage tank 9 can continue to receive liquid from the maturation tank 8 based on the liquid level measured by the fourth liquid level gauge 92. The PLC controller determines whether the maturation tank 8 can continue to receive liquid from the chemical tank 4 based on the liquid level measured by the third liquid level gauge 83.

[0048] In the embodiments provided by the present invention, it should be understood that the disclosed structures can be implemented in other ways. For example, the structural embodiments described above are merely illustrative. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, structure or unit, which can be electrical, mechanical or other forms.

[0049] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0050] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0051] The foregoing description is intended only to provide specific embodiments of the present invention, intended to enable those skilled in the art to understand and implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not intended to be limited to the embodiments shown herein, but rather to be construed in the broadest manner consistent with the principles and novel features claimed herein.

Claims

1. A polyacrylamide pre-impregnation device, characterized in that: include: A polyacrylamide silo (1) is provided, wherein the bottom of the polyacrylamide silo (1) is connected to a spiral pusher (2), and an infiltration component (3) is provided at the discharge port of the spiral pusher (2), wherein the infiltration component (3) comprises: a conical head (31), an annular water outlet (32) is provided on the side wall of the conical head (31), the opening of the annular water outlet (32) is downwardly facing along the side wall of the conical head, an annular protrusion (33) is provided around the side wall of the conical head (31) below the annular water outlet (32), the conical head (31) is connected to an infiltration water pipe (34), and the infiltration water pipe (34) is connected to the annular water outlet (32) through a channel in the conical head (31); and a coaxial sleeve (35) is provided on the outside of the conical head (31).

2. The polyacrylamide pre-impregnation device according to claim 1, characterized in that: A silo valve (11) with adjustable opening is provided at the bottom discharge port of the polyacrylamide silo (1), a material level sensor is provided in the polyacrylamide silo (1), a driving circuit of the silo valve (11) and the material level sensor are electrically connected to a PLC controller, and the PLC controller is electrically connected to an alarm.

3. The polyacrylamide pre-impregnation device according to claim 1, characterized in that: A first vibration motor (21) is provided at the connection between the screw pusher (2) and the polyacrylamide silo (1).

4. The polyacrylamide pre-impregnation device according to claim 1, characterized in that: The infiltration water pipe (34) is connected to a water inlet pipe provided with a first flow metering and regulating mechanism (36), and the first flow metering and regulating mechanism is electrically connected to a PLC controller.

5. A polyacrylamide proportioning device, using the polyacrylamide pre-impregnation device according to any one of claims 1 to 4, characterized in that: include: A material tank (4) is provided with a polyacrylamide pre-wetting device; The chemical tank (4) is connected to the heat-insulating cache water tank (5), and a second flow metering and regulating component (6) is provided on the pipeline between the heat-insulating cache water tank (5) and the chemical tank (4), and the second flow metering and regulating component (6) is connected to a PLC controller; A stirrer (7) is provided in the material tank (4); A viscometer (41) is provided at the discharge pipe of the chemical tank (4), the discharge pipe of the chemical tank (4) is connected to a discharge valve (42) and a discharge pump (43), and a second liquid level meter (44) is provided in the chemical tank (4).

6. The polyacrylamide proportioning device according to claim 5, characterized in that: A temperature sensor (51) and a heater (52) are provided in the heat-insulating cache water tank (5), and the temperature sensor (51) and the heater (52) are connected to a PLC controller.

7. The polyacrylamide proportioning device according to claim 5, characterized in that: A first liquid level gauge (53) is provided in the heat-insulating cache water tank (5), and the heat-insulating cache water tank (5) is connected to a water supply pipe provided with an electric water supply valve (54), and the driving circuits of the first liquid level gauge (53) and the electric water supply valve (54) are connected to a PLC controller.

8. The polyacrylamide proportioning device according to claim 5, characterized in that: The discharge pump (43) is connected to the maturation tank (8) through a pipeline. The discharge pipe of the maturation tank (8) is connected to an electric valve (81) and a delivery pump (82). The delivery pump (82) is connected to the storage tank (9) through a pipeline. The discharge pipe of the storage tank (9) is provided with a third flow metering and regulating mechanism (91). A third liquid level gauge (83) is provided in the maturation tank (8), and a fourth liquid level gauge (92) is provided in the storage tank (9).

9. The polyacrylamide proportioning device according to claim 5, characterized in that: The sleeve (35) in the impregnation assembly (3) in the polyacrylamide pre-impregnation device is fixed to a vibration base, the vibration base is fixed in the material tank (4), and a second vibration motor is provided on the vibration base.

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