Drying device for bentonite production
By combining the use of a hammer, a spiral lifting plate, and a rolling disc, the problems of uneven heat exchange and agglomeration in bentonite drying equipment are solved, achieving uniform drying and efficient heat exchange of bentonite, thus meeting the needs of industrial production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-04-14
AI Technical Summary
Existing bentonite drying equipment suffers from uneven heat exchange and clumping, resulting in high energy consumption and low efficiency, making it difficult to meet the needs of large-scale industrial production.
The bentonite is initially dispersed by a hammer, then compacted by a spiral lifting plate and a rolling disc, and heated by a heating plate to achieve uniform throwing and dispersion of the bentonite, preventing clumping and improving heat exchange efficiency.
This method achieves uniform drying of bentonite, improves heat exchange efficiency, shortens drying time, reduces energy consumption, and meets the needs of industrial production.
Smart Images
Figure CN224121661U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bentonite production technology, and specifically discloses a drying device for bentonite production. Background Technology
[0002] Bentonite is a clay rock with montmorillonite as its main mineral component. It possesses unique properties such as strong water absorption, swelling capacity, and cation exchange ability, making it widely used in numerous fields including construction, chemical engineering, metallurgy, environmental protection, and agriculture. For example, in construction engineering, it is used to prepare waterproof blankets and mud wall linings; in the chemical industry, it is used as a catalyst carrier and adsorbent; and in agriculture, it is used for soil improvement and slow-release fertilizers. Its performance is significantly affected by its moisture content, and different applications have strict requirements for moisture content. For instance, bentonite used in fine chemicals often requires a moisture content of less than 5%, making efficient drying a crucial step in bentonite processing.
[0003] Early drying methods often relied on natural air drying, which was severely limited by weather and site conditions and extremely inefficient, making it difficult to meet the needs of large-scale industrial production. Currently, drum dryers are used, which dry bentonite by rotating and tumbling it. However, because bentonite becomes highly sticky after absorbing water, it easily clumps together inside the drum, leading to uneven heating and resulting in some areas being over-dried or under-dried. Furthermore, existing equipment relies solely on drum rotation and lacks a mechanism to actively break up clumps, affecting drying uniformity. Clumping also leads to insufficient heat exchange, high energy consumption, and long drying times, all of which require improvement. Utility Model Content
[0004] This utility model proposes a drying device for bentonite production. The bentonite is initially dispersed by a hammer, and the bentonite is fully thrown and dispersed by a spiral lifting plate and a rolling disc to prevent clumping. This allows the bentonite to fully contact the heat source and achieve the effect of uniformly drying the bentonite.
[0005] This utility model is implemented as follows: a drying device for bentonite production includes a fixed cylinder with open and inclined sides. Multiple heating plates are embedded in the inner wall of the fixed cylinder. A drying mechanism is installed inside the fixed cylinder. The drying mechanism includes a drying cylinder with open sides, rotatably connected to the inside of the fixed cylinder via bearings. The left and right ends of the drying cylinder extend to the outside of the fixed cylinder. A fixed plate is provided at the right end of the drying cylinder. A protective cover is fixedly installed at the left end of the fixed plate and slidably connected to the inner wall of the drying cylinder. A fixed shaft is fixedly connected to the fixed plate inside the protective cover. The other end of the fixed shaft extends into the inside of the drying cylinder, and two treaded discs with raised outer walls are rotatably mounted on the outer wall via bearings. The bottom of the treaded discs contacts the inner wall of the drying cylinder.
[0006] The left end of the drying cylinder is provided with a feeding mechanism; the feeding mechanism includes a fixed box fixedly connected by an L-shaped mounting plate, the top of the fixed box is provided with a feeding hopper, the inside of the feeding hopper is provided with a rotating shaft, and multiple beating hammers for dispersing bentonite are fixedly installed on the outside of the rotating shaft.
[0007] As a preferred embodiment of the drying device for bentonite production according to this utility model, the left end of the drying cylinder is provided with a feed inlet, and one end of the feed hopper penetrates through the top of the fixed box and extends into the interior of the feed inlet.
[0008] In a preferred embodiment of the drying device for bentonite production according to this utility model, a second gear is fixedly installed on the left end of the outer circumference of the drying cylinder, a first gear is meshed with the outer side wall of the second gear, a first motor is fixedly installed on the top of the fixed cylinder, and the output end of the first motor is fixedly connected to the first gear.
[0009] As a preferred embodiment of the drying device for bentonite production according to this utility model, the inner wall of the drying cylinder is fixedly installed with a propulsion spiral lifting plate and a dispersion spiral lifting plate located on the left and right sides of two rolling discs.
[0010] As a preferred embodiment of the drying device for bentonite production according to this utility model, an air outlet pipe is provided at the left end of the fixed box, a fan is installed inside the air outlet pipe, and a through hole is provided through the outer wall of the fixed plate.
[0011] In a preferred embodiment of the drying device for bentonite production according to this utility model, an installation plate is fixedly installed on the top of the feed hopper, and a second motor is fixedly installed on the top of the installation plate. The output end of the second motor passes through the installation plate and is rotatably connected to the rotating shaft.
[0012] As a preferred embodiment of the drying device for bentonite production according to this utility model, two supporting legs distributed front and rear are fixedly installed at the bottom of the fixed plate, and a collection box located below the right end of the drying cylinder with an open top is provided between the two supporting legs.
[0013] As a preferred embodiment of the drying device for bentonite production according to this utility model, the bottom of the fixed cylinder is fixedly equipped with multiple support legs.
[0014] The beneficial effects of this utility model are:
[0015] 1. The bentonite is first initially dispersed by a hammer, and then pushed and scattered by a propulsion spiral lifting plate and a dispersing spiral lifting plate inside the drying drum. It is also crushed by a rolling disc, which can fully throw and disperse the bentonite, effectively preventing the bentonite from clumping during the drying process. This allows the bentonite to fully contact the heat source and achieve uniform drying.
[0016] 2. The heating plate on the inner wall of the fixed cylinder provides the heat source. During the rotation of the drying cylinder, the propulsion spiral lifting plate and the dispersion spiral lifting plate continuously turn the bentonite, which improves the heat exchange efficiency and speeds up the drying process.
[0017] 3. The moisture generated during the drying process can be discharged in a timely manner through the fan and through the vents, avoiding the accumulation of moisture inside the drying drum and creating favorable environmental conditions for the drying process, which helps to improve the drying quality. 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. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0019] Figure 1 This is an overall cross-sectional view of a drying device for bentonite production according to the present invention.
[0020] Figure 2 This is a left sectional view of the drying cylinder of this utility model;
[0021] Figure 3 This is a structural diagram of the fixing plate of this utility model;
[0022] Figure 4 This is a structural diagram of the protective cover of this utility model;
[0023] Figure 5 This is a structural diagram of the rolling disk of this utility model.
[0024] The markings in the diagram are as follows: 1. Fixed cylinder; 101. Heating plate; 2. Drying cylinder; 201. Feed inlet; 202. Propeller screw conveyor plate; 3. Dispersed screw conveyor plate; 4. Fixed plate; 401. Through hole; 402. Protective cover; 403. Support leg; 404. Collection box; 5. Fixed shaft; 501. Rolling disc; 6. First motor; 601. First gear; 602. Second gear; 7. Fixed box; 701. Fan; 8. Feed hopper; 801. Mounting plate; 802. Second motor; 803. Rotating shaft; 804. Beating hammer. Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.
[0026] Please see Figure 1-5A drying device for bentonite production includes a fixed cylinder 1 with open and inclined sides. Multiple heating plates 101 are embedded in the inner wall of the fixed cylinder 1. A drying mechanism is provided inside the fixed cylinder 1. The drying mechanism includes a drying cylinder 2 with open sides and rotatably connected to the inside of the fixed cylinder 1 via bearings. The left and right ends of the drying cylinder 2 extend to the outside of the fixed cylinder 1. A fixed plate 4 is provided at the right end of the drying cylinder 2. A protective cover 402 is fixedly installed at the left end of the fixed plate 4 and slidably connected to the inner wall of the drying cylinder 2. A fixed shaft 5 is fixedly connected to the fixed plate 4 inside the protective cover 402. The other end of the fixed shaft 5 extends into the inside of the drying cylinder 2 and two rolling discs 501 with raised patterns on their outer walls are rotatably installed on their outer walls via bearings. The bottom of the rolling discs 501 contacts the inner wall of the drying cylinder 2.
[0027] A feeding mechanism is provided at the left end of the drying cylinder 2; the feeding mechanism includes a fixed box 7 fixedly connected by an L-shaped mounting plate, a feeding hopper 8 is provided on the top of the fixed box 7, a rotating shaft 803 is provided inside the feeding hopper 8, and multiple beating hammers 804 for dispersing bentonite are fixedly installed on the outside of the rotating shaft 803.
[0028] In this embodiment: the bentonite to be dried is added to the feed hopper 8, and after being initially dispersed by the hammer 804, it enters the drying cylinder 2 through the feed inlet 201. The heating plate 101 on the inner wall of the fixed cylinder 1 provides a heat source. The drying cylinder 2 is driven by the first motor 6 to rotate the first gear 601 and the second gear 602. The propulsion spiral lifting plate 202 and the dispersion spiral lifting plate 3 on the inner wall of the drying cylinder 2 push and scatter the bentonite. The rolling disc 501 rolls and crushes the bentonite as the drying cylinder 2 rotates, throwing and dispersing the bentonite, effectively preventing it from clumping, drying the bentonite evenly, and improving the heat exchange efficiency. The raised texture on the surface of the rolling disc 501 can enhance the crushing effect and prevent material adhesion. The dried bentonite falls from the right end of the drying cylinder 2 into the collection box 404 for collection.
[0029] As a technical optimization of this utility model, the left end of the drying cylinder 2 is provided with a feed inlet 201, and one end of the feed hopper 8 penetrates through the top of the fixed box 7 and extends into the interior of the feed inlet 201.
[0030] In this embodiment, the bentonite that needs to be dried can be introduced into the feed inlet 201 through the feed hopper 8.
[0031] As a technical optimization of this utility model, a second gear 602 is fixedly installed on the left end of the outer circumference of the drying cylinder 2, and a first gear 601 is meshed with the outer side wall of the second gear 602. A first motor 6 is fixedly installed on the top of the fixed cylinder 1, and the output end of the first motor 6 is fixedly connected to the first gear 601.
[0032] In this embodiment: the first motor 6 is started to drive the first gear 601 to rotate, which in turn drives the second gear 602 to rotate synchronously with the drying cylinder 2.
[0033] As a technical optimization of this utility model, the inner wall of the drying cylinder 2 is fixedly installed with a propulsion spiral lifting plate 202 and a dispersion spiral lifting plate 3 located on the left and right sides of the two rolling discs 501.
[0034] In this embodiment: the propulsion spiral lifting plate 202 pushes the bentonite towards the discharge end when rotating forward, and can mix the bentonite when rotating in reverse. During the drying process, bentonite is prone to clumping or accumulating. The dispersive spiral lifting plate 3 continuously throws and sprinkles the bentonite by rotating, breaking up the clumps and allowing the hot air (or the heat radiated by the heating plate 101) to contact the material surface more fully, avoiding local overheating or uneven drying.
[0035] As a technical optimization of this utility model, an air outlet pipe is provided at the left end of the fixed box 7, and a fan 701 is installed inside the air outlet pipe. A through hole 401 is provided through the outer side wall of the fixed plate 4.
[0036] In this embodiment: when the fan 701 is started, during drying, the external airflow can enter the drying cylinder 2 through the through hole 401 and carry the humid airflow generated during drying out from the fan 701.
[0037] As a technical optimization of this utility model, an installation plate 801 is fixedly installed on the top of the feed hopper 8, and a second motor 802 is fixedly installed on the top of the installation plate 801. The output end of the second motor 802 passes through the installation plate 801 and is rotatably connected to the rotating shaft 803.
[0038] In this embodiment: starting the second motor 802 can drive the rotating shaft 803 to rotate multiple beating hammers 804, thereby beating and dispersing the bentonite.
[0039] As a technical optimization of this utility model, two supporting legs 403 distributed front and back are fixedly installed at the bottom of the fixing plate 4, and a collection box 404 located below the right end of the drying cylinder 2 with an open top is provided between the two supporting legs 403.
[0040] In this embodiment: by setting support legs 403, the fixing plate 4 can be supported; by setting collection box 404, the dried bentonite can be collected.
[0041] As a technical optimization of this utility model, multiple support legs are fixedly installed at the bottom of the fixed cylinder 1.
[0042] In this embodiment, multiple support legs are used to stably support the fixed cylinder 1.
[0043] The working principle and usage process of this utility model: The device is electrically connected to an external power supply and control switch (not shown in the figure). During use, the bentonite to be dried is added to the feed hopper 8, the second motor 802 is started, and after initial dispersion by the beating hammer 804, it enters the drying cylinder 2 through the feed inlet 201. The heating plate 101 on the inner wall of the fixed cylinder 1 provides a heat source. The drying cylinder 2 is driven by the first motor 6 to rotate the first gear 601 and the second gear 602, and the drying cylinder 2 itself. The propulsion spiral lifting plate 202 on the inner wall of the drying cylinder 2 and... The dispersed spiral lifting plate 3 pushes and throws bentonite, while the rolling disc 501 rotates under the action of centrifugal force and material friction, and at the same time crushes the bentonite, throwing and dispersing it, effectively preventing it from clumping, drying the bentonite evenly, and improving heat exchange efficiency. The raised texture on the surface of the rolling disc 501 can enhance the crushing effect and prevent material adhesion. During the drying process, moisture is discharged through the fan 701 and the through hole 401. The dried bentonite falls from the right end of the drying cylinder 2 into the collection box 404 for collection.
[0044] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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.
[0045] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.
Claims
1. A drying device for bentonite production, comprising a fixed cylinder (1) with open left and right ends and an inclined arrangement, characterized in that: Multiple heating plates (101) are embedded in the inner wall of the fixed cylinder (1). A drying mechanism is provided inside the fixed cylinder (1). The drying mechanism includes a drying cylinder (2) with open left and right ends and rotatably connected to the inside of the fixed cylinder (1) through bearings. The left and right ends of the drying cylinder (2) extend to the outside of the fixed cylinder (1). A fixed plate (4) is provided at the right end of the drying cylinder (2). A protective cover (402) is fixedly installed at the left end of the fixed plate (4) and slidably connected to the inner wall of the drying cylinder (2). A fixed shaft (5) is fixedly connected to the fixed plate (4) inside the protective cover (402). The other end of the fixed shaft (5) extends into the inside of the drying cylinder (2) and two rolling discs (501) with raised patterns on their outer walls are rotatably installed on their outer walls through bearings. The bottom of the rolling discs (501) contacts the inner wall of the drying cylinder (2). The left end of the drying cylinder (2) is provided with a feeding mechanism; the feeding mechanism includes a fixed box (7) fixedly connected by an L-shaped mounting plate, the top of the fixed box (7) is provided with a feeding hopper (8), the inside of the feeding hopper (8) is provided with a rotating shaft (803), and a plurality of beating hammers (804) for dispersing bentonite are fixedly installed on the outside of the rotating shaft (803).
2. The drying apparatus for bentonite production according to claim 1, characterized in that: The left end of the drying cylinder (2) is provided with a feed inlet (201), and one end of the feed hopper (8) passes through the top of the fixed box (7) and extends into the inside of the feed inlet (201).
3. The drying apparatus for bentonite production according to claim 1, characterized in that: A second gear (602) is fixedly installed on the left end of the outer circumference of the drying cylinder (2). A first gear (601) is meshed with the outer side wall of the second gear (602). A first motor (6) is fixedly installed on the top of the fixed cylinder (1). The output end of the first motor (6) is fixedly connected to the first gear (601).
4. A drying apparatus for bentonite production according to claim 1, characterized in that: The inner wall of the drying cylinder (2) is fixedly installed with a pusher spiral lifting plate (202) and a dispersive spiral lifting plate (3) located on the left and right sides of the two rolling discs (501).
5. A drying apparatus for bentonite production according to claim 1, characterized in that: An air outlet pipe is provided at the left end of the fixed box (7), and a fan (701) is installed inside the air outlet pipe. A through hole (401) is provided on the outer side wall of the fixed plate (4).
6. A drying apparatus for bentonite production according to claim 1, characterized in that: The top of the feed hopper (8) is fixedly mounted with an mounting plate (801), and the top of the mounting plate (801) is fixedly mounted with a second motor (802). The output end of the second motor (802) passes through the mounting plate (801) and is rotatably connected to the rotating shaft (803).
7. A drying apparatus for bentonite production according to claim 1, characterized in that: The bottom of the fixed plate (4) is fixedly installed with two front and rear distributed support legs (403), and a collection box (404) located below the right end of the drying cylinder (2) and with an open top is provided between the two support legs (403).
8. A drying apparatus for bentonite production according to claim 1, characterized in that: The bottom of the fixed cylinder (1) is fixedly installed with multiple support legs.