Dust removal device for bentonite production workshop

Abstract

The dust removal device is characterized in that an air inlet pipe extending in the tangential direction of a dust removal cylinder is arranged on the upper edge of the dust removal cylinder, the lower end of the dust removal cylinder is correspondingly connected with a first conical opening, an air outlet pipe extends to the middle of the first conical opening in the axial direction of the dust removal cylinder, and a material guide plate extending spirally is arranged outside the air outlet pipe; a dust falling gap is formed between the periphery of the guide plate and the inner wall of the dust removal cylinder; the air outlet pipe extends out of the dust removal cylinder and is correspondingly and fixedly connected with an upper cover for sealing the upper end of the dust removal cylinder, and the lower end of the first conical opening is correspondingly connected with a sealed dust collection box. Particles are thrown to the dust removal cylinder under the centrifugal action by utilizing the material guide plate and can fall down along the dust removal gap under the action of gravity, so that the advancing distance of the particles along with airflow is reduced, and the dust removal effect is improved; a dust collecting plate is arranged, the airflow further forms a flow velocity difference on the inner wall of the dust removing cylinder through the dust collecting plate, and particulate matter falling is accelerated.

Description

Technical Field

[0001] The utility model belongs to the technical field of workshop dust removal, and particularly relates to a dust removal device for a bentonite production workshop. Background Art

[0002] Bentonite is an important geotechnical material and industrial raw material with a wide range of application backgrounds. The particle size of bentonite is generally between 2 microns and 50 microns, and it is extremely easy to generate dust during the production process. Therefore, dust removal is required. Existing dust removal equipment generally includes bag filters and cyclone dust collectors. Taking the cyclone dust collector as an example, due to the small particle size of bentonite, the sedimentation effect of bentonite particles is not good, and the purification is not thorough enough.

[0003] Therefore, it is necessary to provide an improved technical solution for the deficiencies of the above-mentioned existing technologies. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies in the above-mentioned existing technologies, and the utility model provides a dust removal device for a bentonite production workshop.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A dust removal device for a bentonite production workshop, comprising:

[0007] A dust removal cylinder, an air inlet pipe extending tangentially along the upper edge of the dust removal cylinder is provided, and a first conical opening is correspondingly connected to the lower end;

[0008] An air outlet pipe, the air outlet pipe extends axially along the dust removal cylinder towards the middle of the first conical opening, a spiral guide plate is provided outside the air outlet pipe, and a dust falling gap is provided between the outer periphery of the guide plate and the inner wall of the dust removal cylinder;

[0009] The air outlet pipe extends out of the dust removal cylinder and is correspondingly fixedly connected with an upper cover that closes the upper end of the dust removal cylinder, and the lower end of the first conical opening is correspondingly connected with a closed dust collection box.

[0010] Preferably, a plurality of dust collection plates are evenly distributed on the inner wall of the dust removal cylinder, and the dust collection plates extend in the spiral direction of the guide plate.

[0011] Preferably, the width of the dust collection plate is not greater than the distance between any two adjacent dust collection plates in the circumferential direction of the dust removal cylinder.

[0012] Preferably, the upper end of the guide plate extends to the upper edge of the air inlet pipe, and the pitch of the guide plate is adapted to the diameter of the air inlet pipe.

[0013] Preferably, the upper end of the air outlet pipe is connected with a fan in a detachable manner.

[0014] Preferably, the dust collection box is a square box body, and its upper end surface is provided with an inlet corresponding to the first conical opening and is fixed to the first conical opening through a flange. A draw-out groove that can be pulled horizontally is provided on one side of the dust collection box, and the draw-out groove is fixed to the dust collection box through bolts.

[0015] Preferably, a main frame is provided below the dust removal cylinder, and a plurality of horizontally extending support members are fixed to the outside of the dust removal cylinder. The support members are fixed to the main frame through bolts.

[0016] Preferably, the main frame is fixed to the cast-in-place concrete on the placement surface through bolts.

[0017] Beneficial effects: The spiral extension guide plate is provided to guide the air, which to a certain extent limits the air travel trajectory, ensures the centrifugal effect on the particulate matter, avoids the internal air flow disorder, and uses the guide plate to make the particulate matter be thrown towards the dust removal cylinder under the centrifugal effect. Under the action of gravity, the particulate matter can fall along the dust removal gap, thereby reducing the travel distance of the particulate matter along with the air flow and improving the dust removal effect; the dust collection plate is provided to further form a flow velocity difference of the air flow on the inner wall of the dust removal cylinder through the dust collection plate, accelerating the fall of the particulate matter. Description of the Drawings

[0018] The schematic drawings of the specification that form a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. Among them:

[0019] Figure 1 is a structural schematic diagram of the dust removal device in the specific embodiment provided by the present utility model;

[0020] Figure 2 is a sectional schematic diagram of the dust removal device in the specific embodiment provided by the present utility model;

[0021] Figure 3 is a distribution schematic diagram of the dust collection plate in the specific embodiment provided by the present utility model.

[0022] In the figure: 1. Dust removal cylinder; 2. Upper cover; 3. Fan; 4. Air inlet pipe; 5. First conical opening; 6. Dust collection box; 7. Draw-out groove; 8. Main frame; 9. Air outlet pipe; 10. Guide plate; 11. Dust collection plate. Detailed Embodiments

[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present utility model.

[0024] In the description of the present utility model, the orientation or positional relationship indicated by terms such as "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model rather than requiring the present utility model to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. The terms "connected" and "coupled" used in the present utility model should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments. It should be noted that, without conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other.

[0026] As Figures 1-3 shown, a dust removal device for a bentonite production workshop includes a dust removal cylinder 1 and an air outlet pipe 9. The dust removal cylinder 1 is a metal cylinder, and its inner wall is polished to improve smoothness, ensuring that the air flow can flow smoothly inside the dust removal cylinder 1. The upper edge of the dust removal cylinder 1 is provided with an air inlet pipe 4 extending tangentially along it. The air inlet pipe 4 is a metal pipe and is fixed to the dust removal cylinder 1 by means such as welding. The tangentially extending air inlet pipe 4 gives the introduced air flow an initial spiral velocity, enabling the air flow to travel spirally along the dust removal cylinder 1. At the lower end, a first conical opening 5 is correspondingly connected. The air outlet pipe 9 extends axially along the dust removal cylinder 1 towards the middle of the first conical opening 5. After the air flow passes through the first conical opening 5, it is led downward and out through the air outlet pipe 9. Inside the first conical opening 5, the flow velocity of the air flow changes, accelerating the sedimentation of particulate matter. Outside the air outlet pipe 9, there is a spirally extending guide plate 10, which is fixed to the air outlet pipe 9 and thus is installed into the dust removal cylinder 1 together with the air outlet pipe 9, reducing the production and maintenance difficulty of the equipment. There is a dust falling gap between the outer periphery of the guide plate 10 and the inner wall of the dust removal cylinder 1. By guiding the air through the spirally extending guide plate 10, the air travel trajectory is limited to a certain extent, ensuring the centrifugal effect on particulate matter and avoiding internal air flow disorder. Using the guide plate 10, the particulate matter is thrown towards the dust removal cylinder 1 under the centrifugal action, and under the action of gravity, the particulate matter can fall along the dust removal gap, thereby reducing the travel distance of the particulate matter with the air flow and improving the dust removal effect.

[0027] The air outlet pipe 9 extends out of the dust removal cylinder 1 and is correspondingly fixedly connected to an upper cover 2 that closes the upper end of the dust removal cylinder 1. The upper cover 2 is fixed to the dust removal cylinder 1 through a flange, and a sealing ring can also be added between the two. The lower end of the first conical opening 5 is correspondingly connected to a closed dust collection box 6, and the air flow is led upward and out through the air outlet pipe 9 through the bottom seal.

[0028] In an alternative embodiment, a plurality of dust collecting plates 11 are evenly distributed on the inner wall of the dust removing cylinder 1. The length of the dust collecting plate 11 is adapted to the length of the dust removing cylinder 1 and extends in the spiral direction of the material guiding plate 10, so as to guide the air flow and reduce the probability of air flow disorder. After the air flow passes through the dust collecting plate 11, the flow velocity between adjacent dust collecting plates 11 decreases. Further, the dust collecting plate 11 enables the air flow to form a flow velocity difference on the inner wall of the dust removing cylinder 1. When the wind speed decreases at this place, the falling of particulate matter can be accelerated, and the dust removing effect can be improved.

[0029] In an alternative embodiment, the width of the dust collecting plate 11 is not greater than the circumferential pitch between any two adjacent dust collecting plates 11 in the dust removing cylinder 1, so that the two adjacent dust collecting plates 11 do not overlap each other. Thus, the particulate matter enters the gap between the dust collecting plates 11 under the action of centrifugal force, which helps the particulate matter slide down along the guide groove formed therebetween.

[0030] The dust collecting plate 11 can be close to the outer periphery of the material guiding plate 10, which can ensure the stability of the air outlet pipe 9 to a certain extent. The inclination angle of the dust collecting plate 11 should be between 30° and 60°.

[0031] Furthermore, a notch corresponding to the dust collecting plate 11 and longitudinally extending along the normal line of the outer periphery of the material guiding plate 10 is provided on the outer periphery of the material guiding plate 10, so as to ensure a stable matching relationship with the material guiding plate 10 and ensure stability.

[0032] In an alternative embodiment, the upper end of the material guiding plate 10 extends to the upper edge of the air inlet pipe 4. The pitch of the material guiding plate 10 is adapted to the diameter of the air inlet pipe 4, so as to guide the air flow starting from the air flow entering the material guiding plate 10, ensure a constant air flow channel, and the adapted pitch ensures the accuracy of air flow guiding. The lower end of the material guiding plate 10 extends to the lower edge of the dust removing cylinder 1. A second conical opening is provided at the lower end of the air outlet pipe 9, which can accelerate the formation of the air flow velocity difference.

[0033] In an alternative embodiment, a blower 3 is connected to the upper end of the air outlet pipe 9 in a detachable manner. The air inlet end of the blower 3 is butted against the upper end of the air outlet pipe 9 through a connecting pipe and fixed by a flange and bolts.

[0034] In order to facilitate the cleaning of the collected particulate matter, the dust collecting box 6 is preferably a square box body. An inlet corresponding to the first conical opening 5 is provided on the upper end surface of the dust collecting box 6. The shape of the inlet is adapted to the smaller end of the first conical opening 5. The smaller end of the first conical opening 5 is fixed to the inlet through a flange. A draw-out groove 7 is provided on one side of the dust collecting box 6 and extends horizontally. The draw-out groove 7 is in the shape of a drawer and is adapted to the inner cavity of the dust collecting box 6. The inner side of the side plate of the dust collecting box 6 corresponding to the draw-out groove 7 is fixed to the draw-out groove 7. The side plate is fixed to the main body of the dust collecting box 6 through bolts, so as to achieve detachable connection and ensure the integrity of the appearance of the dust collecting box 6.

[0035] A main frame 8 is provided below the dust removal cylinder 1. The main frame 8 is a square frame. A plurality of horizontally extending support members are fixed to the outside of the dust removal cylinder 1. The support members can be channel steels, and are fixed to the lower edge of the dust removal cylinder 1 or the upper edge of the first conical opening 5 by welding. The support members are fixed to the main frame 8 by bolts. Cast-in-place concrete is poured below the main frame 8 to form a placement surface. The main frame 8 is fixed to the cast-in-place concrete by bolts to ensure the stability during the operation of the dust removal device.

[0036] A plurality of rib plates are provided on the outer wall of the dust removal cylinder 1, and the plurality of rib plates are uniformly distributed along the axial and circumferential directions of the dust removal cylinder 1 to strengthen the strength of the dust removal cylinder 1.

[0037] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. A dust removal device for a bentonite production workshop, characterized in that, Including: A dust removal cylinder, on the upper edge of which there is an air inlet pipe extending tangentially along it, and a first conical opening is correspondingly connected to the lower end; An air outlet pipe, which extends axially along the dust removal cylinder towards the middle of the first conical opening. There is a spirally extending guide plate outside the air outlet pipe, and a dust falling gap is provided between the outer periphery of the guide plate and the inner wall of the dust removal cylinder; The air outlet pipe extends out of the dust removal cylinder and is correspondingly fixedly connected with an upper cover that closes the upper end of the dust removal cylinder. The lower end of the first conical opening is correspondingly connected with a closed dust collection box.

2. The dust removal device for the bentonite production workshop according to claim 1, characterized in that, A plurality of dust collection plates are evenly distributed on the inner wall of the dust removal cylinder, and the dust collection plates extend in the spiral direction of the guide plate.

3. The dust removal device for the bentonite production workshop according to claim 2, wherein The width of the dust collection plate is not greater than the distance between any two adjacent dust collection plates in the circumferential direction of the dust removal cylinder.

4. The dust removal device for a bentonite production workshop according to claim 1, wherein The upper end of the guide plate extends to the upper edge of the air inlet pipe, and the pitch of the guide plate is adapted to the diameter of the air inlet pipe.

5. The dust removal device for the bentonite production workshop according to claim 1, wherein, The upper end of the air outlet pipe is connected with a blower in a detachable manner.

6. The dust removal device for a bentonite production workshop according to claim 1, characterized in that, The dust collection box is a square box body, and its upper end face is provided with an inlet corresponding to the first conical opening and is fixed to the first conical opening through a flange. A horizontally pull-out slot is provided on one side of the dust collection box, and the pull-out slot is fixed to the dust collection box through bolts.

7. The dust removal device for the bentonite production workshop according to claim 1, characterized in that, A main frame is provided below the dust removal cylinder, and a plurality of horizontally extending support members are fixed outside the dust removal cylinder. The support members are fixed to the main frame through bolts.

8. The dust removal device for the bentonite production workshop according to claim 7, wherein, The main frame is fixed to the cast concrete on the placement surface through bolts.

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