PAM material feeding device

Abstract

The utility model discloses a kind of PAM material feeding devices, it is related to feeding equipment technical field, main purpose is to improve PAM powder feeding efficiency.The main technical scheme of the utility model is as follows:PAM material feeding device, the device includes: box and airflow mixing part;Box is equipped with upper end opening, the bottom space of box is equipped with screw shaft, the output end of bottom space is connected to one end of discharge pipe;Airflow mixing part includes air conveying pipe and material equalizing mechanism, conical hole structure is coaxially arranged in air conveying pipe, the diameter of middle part through-hole of conical hole structure is less than the diameter of two end surfaces of conical hole structure, the other end of discharge pipe penetrates the pipe wall of air conveying pipe, the radial section of the other end surface of discharge pipe and middle part through-hole is flush, the other end of discharge pipe is towards the outlet end of air conveying pipe, material equalizing mechanism includes a plurality of horn tubes that are successively sleeved, the small head end of outer horn tube is fixedly connected to the outlet end of air conveying pipe.

Description

Technical Field

[0001] This utility model relates to the field of feeding equipment technology, and in particular to a PAM material feeding device. Background Technology

[0002] In wastewater treatment, water purification and other fields, the addition of PAM (flocculator) is a commonly used method. During the preparation of flocculants, powdered dry powder needs to be continuously added to the water and mixed with it. The effectiveness of the dry powder addition directly affects the quality of water treatment. Existing PAM preparation and addition devices have problems with poor addition and mixing effects, and are prone to clumping, which affects the addition efficiency. Utility Model Content

[0003] In view of this, the present invention provides a PAM material feeding device, the main purpose of which is to improve the PAM powder feeding efficiency.

[0004] To achieve the above objectives, this utility model mainly provides the following technical solutions:

[0005] This utility model provides a PAM material feeding device, which includes: a box and an airflow mixing section;

[0006] The box body has an opening at the top, and a spiral shaft is provided in the bottom space of the box body. The output end of the bottom space is connected to one end of the discharge pipe.

[0007] The airflow mixing section includes an air conveying pipe and a material equalization mechanism. A conical hole structure is coaxially arranged inside the air conveying pipe. The diameter of the central through hole of the conical hole structure is smaller than the diameter of the two end faces of the conical hole structure. The other end of the discharge pipe penetrates through the pipe wall of the air conveying pipe. The other end face of the discharge pipe is flush with the radial section of the central through hole. The other end of the discharge pipe faces the outlet end of the air conveying pipe. The material equalization mechanism includes a plurality of trumpet tubes nested in sequence. The small end of the outer trumpet tube is fixedly connected to the outlet end of the air conveying pipe.

[0008] The purpose of this utility model and the technical problems to be solved can be further achieved by the following technical measures.

[0009] Optionally, the air supply pipe is inclined downwards, and the outlet end of the air supply pipe is located at the lower end of the inclined direction of the air supply pipe.

[0010] Optionally, it also includes a stirring shaft, the bottom space includes a first space and a second space, the first space is located above the second space, the stirring shaft is rotatably disposed in the first space, and the spiral shaft is rotatably disposed in the second space.

[0011] Optionally, a plurality of first blades and a plurality of second blades are mounted on the axial side of the stirring shaft, the plurality of first blades and the plurality of second blades being arranged alternately, the extension direction of the first blades being perpendicular to the axial direction of the stirring shaft, and the angle between the extension direction of the second blades and the axial direction of the stirring shaft being 45°.

[0012] Optionally, it also includes a cover that closes onto the upper opening.

[0013] Optionally, one side of the cover is hinged to one side edge of the upper opening, and the other side of the cover is connected to the other side edge of the upper opening via a snap-fit ​​structure.

[0014] Optionally, it also includes a U-shaped tube, one end of which is connected to the cover and the other end is open.

[0015] Optionally, a handle is also included, which is fixedly connected to the other side of the cover.

[0016] Optionally, the opposite sidewalls of the box above the bottom space are inclined toward the bottom space.

[0017] Optionally, the radial cross-section of the first space is larger than the radial cross-section of the second space.

[0018] By employing the above technical solution, this utility model has at least the following advantages:

[0019] During feeding, the operator puts the PAM powder into the box through the top opening, and the spiral shaft drives the PAM powder in the bottom space to flow to the discharge pipe at the bottom space output end.

[0020] The blower draws outside air into the air delivery pipe. At the central through-hole of the cone-shaped structure, a negative pressure is generated due to the Venturi effect, making the gas phase pressure at the other end of the discharge pipe less than that at the first end. This pressure difference drives the PAM powder to flow faster into the air delivery pipe. Inside the air delivery pipe, the PAM powder and airflow are evenly mixed and diffused into the annular space between adjacent bell-shaped pipes. Through these multiple annular spaces, the mixture of PAM powder and air is evenly diffused into the dissolving tank, where the PAM powder and water are fully dissolved through stirring.

[0021] By using the above methods, the clumping of PAM powder can be avoided, ensuring the efficiency of PAM powder addition and mixing. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a PAM material feeding device provided in an embodiment of the present utility model;

[0023] Figure 2 This is a side view of the box.

[0024] Figure 3 This is a bottom-view perspective of the horn tube.

[0025] The reference numerals in the accompanying drawings include: 1. housing, 2. spiral shaft, 3. discharge pipe, 4. air conveying pipe, 5. conical hole structure, 6. horn pipe, 7. fan, 8. dissolving tank, 9. cross support rod, 10. stirring shaft, 11. first space, 12. second space, 13. drive motor, 14. driving wheel, 15. driven wheel, 16. first blade, 17. second blade, 18. cover, 19. snap-fit ​​structure, 20. U-shaped tube, 21. handle, 22. gas spring. Detailed Implementation

[0026] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the specific implementation methods, structures, features, and effects according to this utility model application are described in detail below with reference to the accompanying drawings and preferred embodiments. In the following description, different "embodiments" or "embodiments" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0028] like Figure 1 and Figure 3 As shown, an embodiment of the present invention provides a PAM material feeding device, which includes: a housing 1 and an airflow mixing section;

[0029] The box 1 has an opening at the top, and a spiral shaft 2 is provided in the bottom space of the box 1. The output end of the bottom space is connected to one end of the discharge pipe 3.

[0030] The airflow mixing section includes an air conveying pipe 4 and a material equalization mechanism. A conical hole structure 5 is coaxially arranged inside the air conveying pipe 4. The diameter of the central through hole of the conical hole structure 5 is smaller than the diameter of the two end faces of the conical hole structure 5. The other end of the discharge pipe 3 penetrates the pipe wall of the air conveying pipe 4. The other end face of the discharge pipe 3 is flush with the radial section of the central through hole. The other end of the discharge pipe 3 faces the outlet end of the air conveying pipe 4. The material equalization mechanism includes a plurality of trumpet tubes 6 nested in sequence. The small end of the outer trumpet tube 6 is fixedly connected to the outlet end of the air conveying pipe 4.

[0031] The working process of the PAM material feeding device is as follows:

[0032] During feeding, the operator puts PAM powder into the box 1 through the top opening, and the spiral shaft 2 drives the PAM powder in the bottom space to flow to the discharge pipe 3 at the bottom space output end.

[0033] The blower 7 draws outside air into the air supply pipe 4. At the through hole in the middle of the cone structure 5, a negative pressure is generated due to the Venturi effect, which makes the gas phase pressure at the other end of the discharge pipe 3 less than the gas phase pressure at one end of the discharge pipe 3. The pressure difference drives the PAM powder to flow faster into the air supply pipe 4. Inside the air supply pipe 4, the PAM powder and airflow are mixed evenly and diffused into the annular space between adjacent trumpet pipes 6. Through the above multiple annular spaces, the mixture of PAM powder and air is evenly diffused into the wastewater to be treated.

[0034] By using the above methods, the clumping of PAM powder can be avoided, ensuring the efficiency of PAM powder addition and mixing.

[0035] Specifically, the spiral shaft 2 is mounted on the opposite end wall of the bottom space of the housing 1 via bearings.

[0036] Specifically, the fan 7 is installed at the inlet end of the air duct 4. The fan 7 is an axial flow fan that provides airflow to the air duct 4.

[0037] Specifically, the central axes of multiple horn tubes 6 coincide, and there is an annular gap between each adjacent horn tube 6. The small end of the outermost horn tube 6 is connected to the outlet end of the air supply pipe 4. The mixture of PAM powder and air in the air supply pipe 4 is evenly output to multiple annular gaps and diffuses out to the large end of multiple horn tubes 6, ultimately ensuring that the added PAM powder does not clump.

[0038] Specifically, the entire device is positioned above the dissolving tank 8, with the larger end of the horn tube 6 facing the liquid surface of the dissolving tank 8, thereby enabling the PAM powder to be evenly diffused onto the wastewater surface.

[0039] Specifically, it also includes a cross support rod 9, the center of which coincides with the center of the horn tube 6. The cross support rod 9 is sequentially fixed to the walls of multiple horn tubes 6, thereby fixing the relative positions of the multiple horn tubes 6.

[0040] In a specific embodiment, the air supply pipe 4 is inclined downward, and the outlet end of the air supply pipe 4 is located at the lower end of the inclined direction of the air supply pipe 4.

[0041] In this embodiment, specifically, after the outside air flows along the air duct 4 to the central through hole of the cone structure 5, the airflow carries the PAM powder to the outlet end of the air duct 4. At the same time, because the air duct 4 is inclined downward, the potential energy of the PAM powder is converted into kinetic energy, thus preventing the PAM powder from depositing on the inner wall of the air duct 4.

[0042] like Figure 1 and Figure 2As shown, in a specific embodiment, it also includes a stirring shaft 10. The bottom space includes a first space 11 and a second space 12. The first space 11 is located above the second space 12. The stirring shaft 10 is rotatably disposed in the first space 11, and the spiral shaft 2 is rotatably disposed in the second space 12.

[0043] In this embodiment, specifically, the stirring shaft 10 first stirs the PAM powder fed into the box 1, shears the large pieces, and the broken PAM powder falls into the second space 12. With the rotation of the spiral shaft 2, the PAM powder moves to the output end of the bottom space. In this way, the PAM powder in the box 1 is prevented from bridging due to clumping, and the smooth addition of PAM powder is maintained.

[0044] Specifically, it also includes a drive motor 13, the output shaft of which is coaxially connected to the spiral shaft 2, the output shaft of which is keyed to the drive wheel 14, the end of the stirring shaft 10 is keyed to the driven wheel 15, and the drive wheel 14 is connected to the driven wheel 15 via a belt, so that the spiral shaft 2 and the stirring shaft 10 can rotate synchronously, and the shearing and conveying of PAM materials can be carried out simultaneously.

[0045] In a specific embodiment, a plurality of first blades 16 and a plurality of second blades 17 are mounted on the axial side of the stirring shaft 10. The plurality of first blades 16 and the plurality of second blades 17 are arranged alternately. The extending direction of the first blades 16 is perpendicular to the axial direction of the stirring shaft 10, and the angle between the extending direction of the second blades 17 and the axial direction of the stirring shaft 10 is 45°.

[0046] In this embodiment, specifically, the intersection angle between the first blade 16 and the stirring shaft 10 is the first angle, and the intersection angle between the second blade 17 and the stirring shaft 10 is the second angle. There is a difference between the first angle and the second angle. As the stirring shaft 10 rotates, the first blade 16 and the second blade 17 can disperse the PAM powder in the first space 11 from different directions.

[0047] In a specific embodiment, it also includes a cover 18, which covers the upper opening.

[0048] In this embodiment, specifically, the cover 18 closes the upper opening to prevent the stirring shaft 10 from stirring the PAM powder and generating dust, which then drifts out.

[0049] In a specific embodiment, one side of the cover 18 is hinged to one side edge of the upper opening, and the other side of the cover 18 is connected to the other side edge of the upper opening through a snap-fit ​​structure 19.

[0050] In this embodiment, specifically, when the operator feeds material, the connection between the mating parts of the snap-fit ​​structure 19 can be released, and when the amount of material fed is sufficient, the connection between the mating parts of the snap-fit ​​structure 19 can be restored.

[0051] In a specific embodiment, a U-shaped tube 20 is also included, one end of which is connected to the cover 18, and the other end is open.

[0052] In this embodiment, specifically, when the cover 18 closes the upper opening of the box 1, the box 1 is connected to the outside through the U-shaped tube 20, so that the inside of the box 1 is kept at normal pressure. Thus, when negative pressure is generated at the through hole position in the middle of the cone hole structure 5, a stable pressure difference can be formed at both ends of the discharge pipe 3, so that the discharge pipe 3 generates suction force on the PAM powder in the box 1, ensuring that the PAM powder has a continuous driving force for flow in the discharge pipe 3.

[0053] In a specific embodiment, a handle 21 is also included, which is fixedly connected to the other side of the cover 18.

[0054] In this embodiment, specifically, the operator holds the handle 21 and can lift the cover 18 at a certain angle to facilitate the addition of PAM powder;

[0055] Specifically, the opposite sides of the cover 18 are connected to the upper opening edge of the box 1 by gas springs 22, which facilitates the operator to open the cover 18.

[0056] In a specific embodiment, the opposite side walls of the box 1 above the bottom space are inclined toward the bottom space.

[0057] In this embodiment, specifically, the opposite side walls of the box 1 are inclined towards the bottom space, which guides the PAM material in the upper part of the box 1, making it easier for the PAM material to slide down to the bottom space, thereby achieving complete processing of the PAM material in the box 1.

[0058] In a specific embodiment, the radial cross-section of the first space 11 is larger than the radial cross-section of the second space 12.

[0059] In this embodiment, specifically, the bottom edge of the radial section of the first space 11 and the bottom edge of the radial section of the second space 12 are both arc-shaped, and the free end motion trajectory of the impeller of the stirring shaft 10 matches the inner edge of the first space 11; the edge of the spiral blade of the spiral shaft 2 matches the inner edge of the second space 12.

[0060] The radial cross-sectional area of ​​the first space 11 is larger than that of the second space 12, so that the undispersed PAM blocky material is temporarily stored in the first space 11, ensuring that the PAM blocky material is fully sheared, avoiding material agglomeration to a large extent, and ensuring the smooth operation of the material screw conveyor in the second space 12.

[0061] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A PAM material dispensing device, characterized in that, include: The box body has an opening at the top, and a spiral shaft is provided in the bottom space of the box body. The output end of the bottom space is connected to one end of the discharge pipe. The airflow mixing unit includes an air conveying pipe and a material equalization mechanism. A conical hole structure is coaxially arranged inside the air conveying pipe. The diameter of the central through hole of the conical hole structure is smaller than the diameter of the two end faces of the conical hole structure. The other end of the discharge pipe penetrates through the pipe wall of the air conveying pipe. The other end face of the discharge pipe is flush with the radial section of the central through hole. The other end of the discharge pipe faces the outlet end of the air conveying pipe. The material equalization mechanism includes a plurality of trumpet tubes nested in sequence. The small end of the outer trumpet tube is fixedly connected to the outlet end of the air conveying pipe.

2. The PAM material feeding device according to claim 1, characterized in that, The air supply pipe is inclined downwards, and the outlet end of the air supply pipe is located at the lower end of the inclined direction of the air supply pipe.

3. The PAM material feeding device according to claim 1, characterized in that, It also includes a stirring shaft, and the bottom space includes a first space and a second space. The first space is located above the second space, the stirring shaft is rotatably disposed in the first space, and the spiral shaft is rotatably disposed in the second space.

4. The PAM material feeding device according to claim 3, characterized in that, The stirring shaft is equipped with a plurality of first blades and a plurality of second blades, which are arranged alternately. The extension direction of the first blades is perpendicular to the axial direction of the stirring shaft, and the angle between the extension direction of the second blades and the axial direction of the stirring shaft is 45°.

5. The PAM material feeding device according to claim 1, characterized in that, It also includes a cover that closes onto the upper opening.

6. The PAM material feeding device according to claim 5, characterized in that, One side of the cover is hinged to one edge of the upper opening, and the other side of the cover is connected to the other edge of the upper opening via a snap-fit ​​structure.

7. The PAM material feeding device according to claim 5, characterized in that, It also includes a U-shaped tube, one end of which is connected to the cover and the other end is open.

8. The PAM material feeding device according to claim 6, characterized in that, It also includes a handle, which is fixedly connected to the other side of the cover.

9. The PAM material feeding device according to claim 1, characterized in that, The opposite side walls of the box above the bottom space are inclined toward the bottom space.

10. The PAM material feeding device according to claim 3, characterized in that, The radial cross-section of the first space is larger than that of the second space.

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