Barium carbonate drying equipment for preventing agglomeration

Abstract

The invention discloses barium carbonate drying equipment for preventing agglomeration, and relates to the technical field of powder material drying, the barium carbonate drying equipment comprises a support, and the upper end face of the support is rotatably provided with a drying assembly through at least two supporting seats; the driving equipment is fixed on the bracket, and the output of the driving equipment is connected with the drying assembly; the feeding opening is fixed to the support and rotationally connected with one end of the drying assembly; the heating equipment is fixed to the end, away from the drying assembly, of the feeding opening; the discharging opening is fixed to the support and rotationally connected with the other end of the drying assembly; and the control box is fixed on the bracket and is used for controlling the start and stop of the equipment.

Description

Technical Field

[0001] This invention relates to the field of powder material drying technology, specifically a barium carbonate drying device for preventing agglomeration. Background Technology

[0002] Barium carbonate is an important inorganic chemical raw material widely used in industries such as electronics, ceramics, and magnetic materials. In its production process, the barium carbonate filter cake synthesized by the wet process needs to undergo a drying process to obtain a powder product with good flowability and uniform particle size. However, traditional drying equipment, when drying barium carbonate, is prone to causing particles to adhere and form hard agglomerates due to the rapid evaporation of surface moisture at high temperatures, resulting in localized supersaturation, and the effects of van der Waals forces and electrostatic forces between particles. These agglomerates not only reduce the product's bulk density and flowability, affecting subsequent packaging, transportation, and use, but also lead to uneven drying, increased energy consumption, and prolonged drying time.

[0003] In existing technologies, the inherent mechanical structure and material movement of rotary cylinders during barium carbonate drying exacerbate agglomeration: Firstly, simple lifting plates are usually installed inside the cylinder, which can only lift the material to a certain height and then scatter it for brief contact with hot air. For barium carbonate filter cakes with high moisture content and high viscosity, this scattering is often insufficient, and the material tends to accumulate at the base of the lifting plates or at the bottom of the cylinder, forming large clumps of material. Secondly, hot air is usually introduced from one end, flowing with or against the material. Temperature and velocity gradients easily exist on the cross-section of the cylinder, leading to local overheating. This causes the surface of the barium carbonate particles to lose water and form a crust too quickly, making it difficult for internal moisture to escape. The particles are strongly bonded together due to liquid-phase bridging.

[0004] To address the above problems, the present invention provides a barium carbonate drying device for preventing agglomeration, thereby solving the aforementioned issues. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: a barium carbonate drying device for preventing agglomeration, comprising:

[0006] The support frame has a drying component rotatably mounted on its upper surface using at least two support seats.

[0007] A drive device is fixed on the bracket, and its output is connected to the drying assembly;

[0008] The feed inlet is fixed on the bracket and rotatably connected to one end of the drying assembly;

[0009] A heating device is fixed at the end of the feed inlet away from the drying component;

[0010] The discharge port is fixed on the bracket and rotatably connected to the other end of the drying assembly;

[0011] The control box, fixed on the bracket, is used to control the start and stop of the equipment.

[0012] Further, preferably, the drying assembly includes:

[0013] The outer cylinder has an inner cylinder coaxially fixed inside it;

[0014] A barrier cylinder is fixed at one end of the feed inlet and extends between the outer cylinder and the inner cylinder, and is rotatably connected to the outer cylinder and the inner cylinder;

[0015] A spiral conveyor plate is fixed inside the inner cylinder at one end near the feed inlet.

[0016] Multiple slitting plate assemblies are configured and arranged circumferentially on the inner cylinder and the barrier cylinder;

[0017] The comb teeth are configured in multiples and arranged circumferentially between the multiple lifting plate assemblies;

[0018] The air intake assembly is symmetrically fixed on both sides of the plurality of the air intake plate assemblies.

[0019] Furthermore, preferably, a heat insulation layer is provided between the outer cylinder and the barrier cylinder, and a heating layer is provided between the inner cylinder and the barrier cylinder. The air inlet of the heating layer is connected to the heating device, and the air outlet of the heating layer is connected to the air inlet assembly.

[0020] Further, preferably, the reverse engineering assembly includes:

[0021] The raised balls are configured in multiples, circumferentially fixed to the inner wall of the barrier cylinder, and arranged in a spiral.

[0022] Multiple lifting plates are configured and evenly fixed to the inner wall of the inner cylinder.

[0023] A fixed shaft is fixed to the upper end face of the lifting plate;

[0024] Multiple sub-plates are configured and are equidistantly hinged to the fixed shaft, and each hinge position is fitted with a torsion spring.

[0025] The vibration assembly is installed on the upper end face of the connection between the lifting plate and the inner cylinder.

[0026] Further, preferably, the vibration assembly includes:

[0027] A vibrating plate is fixed to the upper end face of the connection between the lifting plate and the inner cylinder, and a vibrating chamber is provided inside it;

[0028] A sliding column is slidably disposed within the vibrating plate and extends into the vibrating chamber;

[0029] A frustum is fixed on the sliding column and located inside the vibration chamber;

[0030] A vibration spring is connected between the frustum and the vibration chamber.

[0031] Furthermore, preferably, the vibrating plate is triangular, and the sliding column is driven by contact with the protruding ball.

[0032] Further, preferably, the air intake assembly includes:

[0033] The first air intake plate is fixed to the inner wall of the inner cylinder by multiple first air intake pipes and is located between the lifting plate assembly and the spiral conveyor plate.

[0034] The first air intake is configured as multiple, and is obliquely opened on the side of the first air intake plate near the lifting plate assembly;

[0035] The second air intake plate is fixed to the inner wall of the inner cylinder by multiple second air intake pipes and is located between the lifting plate assembly and the discharge port;

[0036] Multiple second air intakes are configured and are obliquely opened on the side of the second air intake plate near the lifting plate assembly.

[0037] Furthermore, preferably, the first air inlet and the second air inlet are tilted in opposite directions.

[0038] Compared with the prior art, the present invention provides a barium carbonate drying device for preventing agglomeration, which has the following beneficial effects:

[0039] This invention solves the problem of barium carbonate drying agglomeration by integrating three-stage mechanical dispersion, bidirectional countercurrent airflow, and an adaptive vibration anti-sticking mechanism. The spiral conveyor plate, vibrating lifting plate, and elastic sub-plate form a progressive mechanical dispersion chain to continuously break down agglomerates. The hot air with bidirectional opposite rotation forms strong shear turbulence in the drying zone, achieving uniform drying and airflow-assisted dispersion. The vibration component triggered by the protruding ball effectively prevents the material from sticking to the wall, ensuring that the material is always in a dispersed state during the drying process, ultimately obtaining a high-quality product with uniform particle size and good flowability. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0041] Figure 2 This is a schematic diagram of the drying component structure of the present invention;

[0042] Figure 3 This is a partial structural diagram of the drying component of the present invention;

[0043] Figure 4 This is a schematic diagram of the reverse engineering assembly structure of the present invention;

[0044] Figure 5 for Figure 4 Enlarged structural diagram at point A in the diagram;

[0045] In the diagram: 1. Support frame; 2. Drying assembly; 3. Drive unit; 4. Support base; 5. Feed inlet; 6. Heating equipment; 7. Discharge outlet; 8. Control box; 21. Outer cylinder; 22. Inner cylinder; 23. Barrier cylinder; 24. Insulation layer; 25. Heating layer; 26. Spiral conveyor plate; 27. Lifting plate assembly; 28. Comb teeth; 91. First air inlet plate; 92. First air inlet pipe; 93. First air inlet hole; 94. Second air inlet plate; 92. Second air inlet pipe; 271. Protruding ball; 272. Lifting plate; 273. Fixed shaft; 274. Sub-plate; 275. Vibrating plate; 276. Vibrating chamber; 277. Sliding column; 278. Frustum; 279. Vibration spring. Detailed Implementation

[0046] Reference Figures 1-5 The present invention provides a technical solution: a barium carbonate drying device for preventing agglomeration, comprising:

[0047] The upper surface of the bracket 1 is rotatably mounted with a drying component 2 using at least two support seats 4;

[0048] The drive device 3 is fixed on the bracket 1 and its output is connected to the drying component 2;

[0049] The feed inlet 5 is fixed on the bracket 1 and rotatably connected to one end of the drying assembly 2;

[0050] Heating device 6 is fixed at the end of the feed inlet 5 away from the drying component 2;

[0051] The discharge port 7 is fixed on the bracket 1 and rotatably connected to the other end of the drying assembly 2;

[0052] The control box 8 is fixed on the bracket 1 and is used to control the start and stop of the equipment.

[0053] Specifically, the wet barium carbonate filter cake is fed in through the inlet 5, broken up and dried by the drying component 2, and then discharged through the outlet 7.

[0054] Preferably, multiple sets of cutting components can be installed vertically inside the feed inlet 5. Each set of cutting components has multiple cutting plates arranged at equal intervals, and the cutting plates in the multiple sets of cutting components are arranged in an alternating manner. For example, the first set of cutting plates is arranged horizontally (along the axial direction of the drying component 2), and the second set is arranged vertically (along the radial direction of the drying component 2), thereby avoiding the accumulation phenomenon caused by the direct mesh cutting plate.

[0055] In this embodiment, the drying component 2 includes:

[0056] The outer cylinder 21 has an inner cylinder 22 coaxially fixed inside it;

[0057] The barrier cylinder 23 is fixed at one end of the feed inlet 5 and extends between the outer cylinder 21 and the inner cylinder 22, and is rotatably connected to the outer cylinder 21 and the inner cylinder 22.

[0058] The spiral conveyor plate 26 is fixed inside the inner cylinder 22 at one end near the feed inlet 5;

[0059] Multiple lifting plate assemblies 27 are configured and arranged circumferentially on the inner cylinder 22 and the barrier cylinder 23;

[0060] The comb teeth 28 are configured in multiples and arranged circumferentially among the multiple lifting plate assemblies 27;

[0061] The air intake assembly is symmetrically fixed on both sides of the plurality of the air intake plate assemblies 27.

[0062] In other words, the material is rapidly propelled and initially dispersed by the spiral conveyor plate 26 at the front end of the inner cylinder 22 to prevent accumulation at the inlet. Then, the material enters the main drying zone (the area corresponding to the inner cylinder 22 and the lifting plate assembly 27) and is lifted and scattered. The material is then lifted to a certain height and thrown down to form a material curtain. The air inlet assembly heats and dries the material curtain to improve drying efficiency.

[0063] In this process, the material passing through the lifting plate assembly 27 falls into the comb tooth 28 area, thereby allowing the material to be broken up again by multiple comb teeth 28 to prevent agglomeration.

[0064] Preferably, a heat insulation layer 24 is provided between the outer cylinder 21 and the barrier cylinder 23, and a heating layer 25 is provided between the inner cylinder 22 and the barrier cylinder 23. The air inlet of the heating layer 25 is connected to the heating device 6, and the air outlet of the heating layer 25 is connected to the air inlet assembly.

[0065] The heating layer 25 can heat the inner cylinder 22, thereby indirectly heating and drying the material attached to the inner cylinder 22. This can improve the drying efficiency while avoiding excessive temperature and adhesion to the inner cylinder 22.

[0066] In a preferred embodiment, the reverse engineering assembly 27 includes:

[0067] The raised balls 271 are configured in multiples, circumferentially fixed to the inner wall of the barrier cylinder 23, and arranged in a spiral.

[0068] Multiple lifting plates 272 are configured and evenly fixed to the inner wall of the inner cylinder 22 around the circumference;

[0069] A fixed shaft 273 is fixed to the upper end face of the lifting plate 272;

[0070] Multiple sub-plates 274 are configured and are equidistantly hinged to the fixed shaft 273, and each hinge position is fitted with a torsion spring.

[0071] The vibration assembly is installed on the upper end face of the connection between the lifting plate 272 and the inner cylinder 22.

[0072] In other words, the main drying zone can perform three-stage dispersion. First, the material enters the main drying zone, and the fixed lifting plate 272 lifts the material to a certain height and then throws it down to form a material curtain, which is the first stage of lifting and throwing. The vibration component at the root of the lifting plate 272 contacts the raised ball 271 to generate high-frequency micro-vibration to prevent wet material from adhering, which is the second stage of vibration to prevent sticking. During the process of lifting the material, the auxiliary plate 274 rotates due to gravity and the mechanical energy of the material's compression. When the lifting plate 272 is in a horizontal state, the auxiliary plate 274 rebounds through the torsion spring, thereby performing adaptive swinging to beat the material and further break up the clumps.

[0073] In a preferred embodiment, the vibration assembly includes:

[0074] The vibrating plate 275 is fixed on the upper end face of the connection between the lifting plate 272 and the inner cylinder 22, and a vibrating chamber 276 is provided inside it.

[0075] The sliding column 277 is slidably disposed within the vibrating plate 275 and extends into the vibrating chamber 276;

[0076] A frustum 278 is fixed on the sliding column 277 and located inside the vibration chamber 276;

[0077] A vibration spring 279 is connected between the frustum 278 and the vibration chamber 276.

[0078] Preferably, the vibrating plate 275 is triangular, and the sliding column 277 is driven by contact with the protruding ball 271.

[0079] In other words, the multiple sliding columns 277 and the protruding ball 271 are in asynchronous contact, so that the multiple sliding columns 277 can vibrate sequentially, thereby improving the vibration effect.

[0080] In a preferred embodiment, the air intake assembly includes:

[0081] The first air intake plate 91 is fixed to the inner wall of the inner cylinder 22 by multiple first air intake pipes 92 and is located between the lifting plate assembly 27 and the spiral conveyor plate 26.

[0082] The first air inlet 93 is configured as a plurality of them and is obliquely opened on the side of the first air inlet plate 91 near the lifting plate assembly 27;

[0083] The second air intake plate 94 is fixed to the inner wall of the inner cylinder 22 by multiple second air intake pipes 95 and is located between the lifting plate assembly 27 and the discharge port 7.

[0084] The second air intake is configured as a plurality of holes, which are obliquely opened on the side of the second air intake plate 94 near the lifting plate assembly 27.

[0085] In addition, the first air inlet 93 and the second air inlet are tilted in opposite directions.

[0086] The hot air from the heating layer 25 is blown into the drying zone through the air inlets with opposite inclination directions on the first air inlet plate 91 and the second air inlet plate 94, respectively. The two airflows form a strong shear-impact turbulent flow field in the middle of the inner cylinder 22, which makes the falling particles fully suspended and tumble, achieving efficient and uniform heat and mass transfer, and assisting in airflow dispersion.

[0087] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A barium carbonate drying device for preventing agglomeration, characterized in that, include: The bracket (1) has a drying component (2) rotatably mounted on its upper end surface using at least two support seats (4); The drive device (3) is fixed on the bracket (1) and its output is connected to the drying component (2); The feed inlet (5) is fixed on the bracket (1) and rotatably connected to one end of the drying assembly (2); Heating device (6) is fixed at the end of the feed inlet (5) away from the drying component (2); The discharge port (7) is fixed on the bracket (1) and rotatably connected to the other end of the drying assembly (2); The control box (8) is fixed on the bracket (1) and is used to control the start and stop of the equipment.

2. The barium carbonate drying equipment for preventing agglomeration according to claim 1, characterized in that, The drying component (2) includes: The outer cylinder (21) has an inner cylinder (22) coaxially fixed inside it; The barrier cylinder (23) is fixed at one end of the feed inlet (5) and extends between the outer cylinder (21) and the inner cylinder (22), and is rotatably connected to the outer cylinder (21) and the inner cylinder (22); A spiral conveyor plate (26) is fixed inside the inner cylinder (22) at one end near the feed inlet (5); Multiple lifting plate assemblies (27) are configured and arranged circumferentially on the inner cylinder (22) and the barrier cylinder (23); The comb teeth (28) are configured in multiples and arranged circumferentially between the multiple said flipper assemblies (27); The air intake assembly is symmetrically fixed on both sides of the plurality of the air intake plate assemblies (27).

3. The barium carbonate drying equipment for preventing agglomeration according to claim 2, characterized in that, A heat insulation layer (24) is provided between the outer cylinder (21) and the barrier cylinder (23), and a heating layer (25) is provided between the inner cylinder (22) and the barrier cylinder (23). The air inlet of the heating layer (25) is connected to the heating device (6), and the air outlet of the heating layer (25) is connected to the air inlet assembly.

4. A barium carbonate drying device for preventing agglomeration according to claim 2, characterized in that, The reverse engineering assembly (27) includes: The raised balls (271) are configured in multiples, circumferentially fixed to the inner wall of the barrier cylinder (23), and arranged in a spiral. Multiple lifting plates (272) are configured and are circumferentially fixed to the inner wall of the inner cylinder (22); A fixed shaft (273) is fixed to the upper end face of the lifting plate (272); Multiple subplates (274) are configured and are equidistantly hinged to the fixed shaft (273), and each hinge position is fitted with a torsion spring; The vibration assembly is installed on the upper end face of the connection between the lifting plate (272) and the inner cylinder (22).

5. A barium carbonate drying device for preventing agglomeration according to claim 4, characterized in that, The vibration assembly includes: A vibrating plate (275) is fixed on the upper end face of the connection between the lifting plate (272) and the inner cylinder (22), and a vibrating chamber (276) is provided inside it. A sliding column (277) is slidably disposed within the vibrating plate (275) and extends into the vibrating chamber (276); A frustum (278) is fixed on the sliding column (277) and located inside the vibration chamber (276); A vibration spring (279) is connected between the frustum (278) and the vibration chamber (276).

6. A barium carbonate drying device for preventing agglomeration according to claim 5, characterized in that, The vibrating plate (275) is triangular, and the sliding column (277) is driven by contact with the protruding ball (271).

7. A barium carbonate drying device for preventing agglomeration according to claim 2, characterized in that, The air intake assembly includes: The first air intake plate (91) is fixed to the inner wall of the inner cylinder (22) by multiple first air intake pipes (92) and is located between the lifting plate assembly (27) and the spiral conveyor plate (26); The first air inlet (93) is configured as a plurality of them, and is obliquely opened on the side of the first air inlet plate (91) near the lifting plate assembly (27); The second air intake plate (94) is fixed to the inner wall of the inner cylinder (22) by multiple second air intake pipes (95) and is located between the lifting plate assembly (27) and the discharge port (7); The second air intake is configured as a plurality of holes, which are obliquely opened on the side of the second air intake plate (94) near the lifting plate assembly (27).

8. A barium carbonate drying device for preventing agglomeration according to claim 7, characterized in that, The first air inlet (93) and the second air inlet are tilted in opposite directions.

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