Graphite ore pulp drying device with circulating structure

Abstract

The utility model provides a graphite ore pulp drying device with a circulating structure, which comprises an ore pulp feeding assembly, a blast drying assembly, a switching flow guide assembly, a rotary drying assembly, an ore pulp drainage assembly and a circulating backflow assembly, combines two modes of blast drying and rotary drying, can fully dry ore pulp, and improves the drying efficiency. The blast drying assembly suspends ore pulp through hot air, the rotary drying assembly ensures that the ore pulp is evenly and efficiently dried through rotation and heating, the design of the circulating backflow assembly enables the ore pulp which is not completely dried to flow back into the ore pulp feeding assembly, drying treatment is conducted again, and therefore the drying efficiency is improved. Switching valves arranged in the exhaust end pipe, the anti-blocking and anti-leakage pipe and the axial discharge port enable the drying process to be flexibly adjusted according to actual needs, the adaptability of the device is improved, the whole device is compact in structure and easy and convenient to operate, the maintenance cost can be reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a graphite slurry drying device with a circulation structure. Background Art

[0002] Patent document CN202497729U discloses a pulp drying device, which includes a tank body provided with a rotating shaft, a plurality of material boxes that can rotate around the rotating shaft in the tank body, a feed dehydration chamber, a dehydration chamber, a drying chamber, a discharge chamber and a reserved chamber arranged in an annular manner are formed in sequence between the material box and the filter plate, a funnel is provided at the lower end of the filter plate, a vacuum pump is connected to the lower end of the funnel, a circulating hot air pipe is connected to the lower end of the funnel corresponding to the drying chamber, a feed pipe is provided on the tank body corresponding to the feed dehydration chamber, a drainage hole and a filter cloth are provided on the filter plate, and the lower end of the discharge chamber is connected to the outside world, which can quickly, continuously and efficiently dehydrate and dry the pulp to dry mineral powder, not only has high dehydration and drying production efficiency, but also can fully utilize hot air, and can realize automatic industrial production. However, this pulp drying device adopts a one-way material conveying structure, so that some materials cannot be fully dried. Therefore, it is necessary to optimize the structure of this drying device to overcome the above defects. Utility Model Content

[0003] The utility model aims to provide a graphite slurry drying device with a circulation structure.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A graphite slurry drying device with a circulation structure, comprising:

[0006] A slurry feeding assembly, which is connected to a slurry supply device, and the slurry supply device transports slurry to the slurry feeding assembly;

[0007] An air blast drying component is installed on the slurry feeding component and can perform air blast drying on the slurry entering the slurry feeding component;

[0008] A transfer guide assembly is installed on the slurry feeding assembly, and can guide the slurry in the slurry feeding assembly after the blast drying process, so that it can be discharged to the outside of the blast drying assembly;

[0009] A rotary drying component is connected with the transfer and diversion component, and the transfer and diversion component transfers the slurry after the blast drying treatment to the rotary drying component, and the rotary drying component further dries it;

[0010] A slurry drainage component, which is connected to the rotary drying component, and the slurry dried in the rotary drying component can be discharged through the slurry drainage component;

[0011] The circulating reflux component is connected with the slurry discharge component and the slurry inflow component, and can return the slurry discharged by the slurry discharge component to the slurry inflow component.

[0012] The slurry inflow components include:

[0013] An inlet cone hopper is installed in the drying machine frame and arranged vertically, and its top is connected to the slurry supply equipment, and the slurry is transported to the inlet cone hopper by the slurry supply equipment;

[0014] A conveying trough is installed at the bottom of the feed cone hopper and is connected to the inside of the feed cone hopper. It is arranged horizontally and extends to the blast drying component. A spiral blade is installed inside the conveying trough, and the spiral blade conveys the slurry in the feed cone hopper to the blast drying component.

[0015] The air drying components include:

[0016] The drying cylinder is arranged vertically, and its side wall is connected to the end of the conveying trough, so that the slurry can enter the drying cylinder through the conveying trough. The top of the drying cylinder is also provided with an exhaust end pipe, which connects the inside and outside of the drying cylinder. A switching valve is provided in the exhaust end pipe to switch its connection state;

[0017] A drying grate plate is installed inside the drying vertical cylinder, is located below the conveying trough, and extends obliquely downward to the conveying trough, so that the slurry in the conveying trough can fall onto the drying grate plate;

[0018] The drying fan is installed on the outside of the drying cylinder, and its air outlet is connected to the bottom of the drying cylinder through a transfer guide groove and corresponds to the position of the drying grate. The drying fan blows hot air to the slurry on the drying grate, so that it is suspended on the drying grate and dried. The air passing through the drying grate can be discharged through the exhaust end pipe.

[0019] The transfer guide assembly includes:

[0020] The transfer cylinder is installed in the drying machine frame and arranged vertically. Its top opening is connected to the inside of the drying cylinder and corresponds to the position of the drying grate plate. The slurry on the drying grate plate can fall into the transfer cylinder. An anti-blocking drain pipe is opened at the bottom of the transfer cylinder. A switching valve is provided in the anti-blocking drain pipe to switch its on and off state;

[0021] The guide inclined plate is installed inside the transfer cylinder, located below the drying grate plate and extending obliquely downward from the drying grate plate. After the slurry on the drying grate plate falls into the transfer cylinder, it reaches the guide inclined plate and is guided by the guide inclined plate.

[0022] The spin drying assembly includes:

[0023] The rotating frame is installed in the drying machine frame, and a rotating support wheel is provided on the top of the rotating frame. The rotating support wheel is connected with the driving motor through a transmission mechanism, and the driving motor drives the rotating support wheel to rotate;

[0024] The drying drum is placed on a rotating support wheel and is driven to rotate by the rotating support wheel. Its feed end extends into the interior of the transfer vertical cylinder and cooperates with the guide inclined plate to make the slurry on the guide inclined plate fall into the drying drum. Its discharge end extends obliquely downward to make the slurry move along the drying drum. A heating rod is provided in the drying drum to heat the slurry in the drying drum. The hot air blown out by the drying fan can enter the drying drum through the transfer vertical cylinder to assist in heating the slurry.

[0025] The slurry drainage components include:

[0026] The discharge end pipe is installed in the drying machine frame, arranged horizontally and cooperated with the discharge end of the drying drum. Its axial discharge port is connected with the slurry collection and storage equipment. The slurry in the drying drum can enter the discharge end pipe and be transported to the slurry collection and storage equipment through the axial discharge port. A switching valve is provided in the axial discharge port to switch its on and off state.

[0027] In one embodiment of the utility model, a reverse nozzle is also provided in the discharge end pipe, which is connected to the compression device through a pipeline, and its end extends obliquely downward and points to the end of the drying drum, so that the slurry in the drying drum can be blown in reverse, thereby extending its residence time in the drying drum.

[0028] The circulation reflux components include:

[0029] The reflux side pipe is installed at the bottom of the discharge end pipe. The slurry in the discharge end pipe can be discharged through the reflux side pipe. A switching valve is provided in the reflux side pipe to switch its on and off state;

[0030] The reflux belt has a feed port located below the reflux side pipe and a discharge port located above the inlet cone hopper, so that the slurry discharged from the reflux side pipe can be returned to the feed cone hopper through the reflux belt.

[0031] The advantages of the utility model are:

[0032] The drying device combines air drying and rotary drying, and can fully dry the ore pulp. The air drying component suspends the ore pulp through hot air, and the rotary drying component ensures that the ore pulp is evenly and efficiently dried through rotation and heating. The design of the circulation reflux component allows the incompletely dried ore pulp to flow back into the ore pulp feeding component and be dried again, thereby improving the drying efficiency. The switching valves set in the exhaust end pipe, the anti-blocking discharge pipe, and the axial discharge port allow the drying process to be flexibly adjusted according to actual needs, thereby improving the adaptability of the device. The entire device has a compact structure and is easy to operate, which can reduce maintenance costs and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The utility model discloses a graphite slurry drying device with a circulation structure. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0035] like Figure 1As shown, the graphite slurry drying device with a circulation structure proposed in the utility model includes a slurry feeding component, a blast drying component, a transfer guide component, a rotary drying component, a slurry discharge component and a circulation reflux component. The slurry feeding component is connected to the slurry supply device, and the slurry supply device transports the slurry to the slurry feeding component. The blast drying component is installed on the slurry feeding component, and the slurry entering the slurry feeding component can be blast dried. The transfer guide component is installed on the slurry feeding component, and the slurry in the slurry feeding component that has been blast dried can be blast dried. The treated slurry is diverted to be discharged outside the blast drying component. The rotary drying component is connected to the transfer diversion component, and the slurry treated by blast drying is transferred to the rotary drying component by the transfer diversion component, and further dried by the rotary drying component. The slurry discharge component is connected to the rotary drying component, and the slurry dried in the rotary drying component can be discharged through the slurry discharge component. The circulating reflux component is connected to the slurry discharge component and the slurry inlet component, and the slurry discharged from the slurry discharge component can be returned to the slurry inlet component.

[0036] The slurry inlet assembly includes an inlet cone 110 and a conveying trough 120. The inlet cone is installed in the drying machine frame and arranged vertically. The top of the inlet cone is connected to the slurry supply equipment, and the slurry is conveyed to the inlet cone by the slurry supply equipment. The conveying trough is installed at the bottom of the feed cone and is connected to the inside of the feed cone. It is arranged horizontally and extends to the blast drying assembly. The conveying trough is installed with spiral blades, and the spiral blades convey the slurry in the feed cone to the blast drying assembly.

[0037] The blast drying assembly includes a drying cylinder 210, a drying grate plate 220 and a drying fan 230. The drying cylinder is arranged vertically, and its side wall is connected to the end of the conveying trough so that the slurry can enter the drying cylinder through the conveying trough. An exhaust end pipe 211 is also provided on the top of the drying cylinder, and the exhaust end pipe connects the inside and outside of the drying cylinder. A switching valve is provided in the exhaust end pipe to switch its connection state. The drying grate plate is installed inside the drying cylinder, which is located below the conveying trough and extends obliquely downward to the conveying trough so that the slurry in the conveying trough can fall onto the drying grate plate. The drying fan is installed on the outside of the drying cylinder, and its air outlet is connected to the bottom of the drying cylinder through a transfer guide groove and corresponds to the position of the drying grate plate. The drying fan blows hot air to the slurry on the drying grate plate, so that it is suspended on the drying grate plate and dried. The air passing through the drying grate plate can be discharged through the exhaust end pipe.

[0038] The transfer guide assembly includes a transfer cylinder 310 and a guide inclined plate 320. The transfer cylinder is installed in the drying machine frame and arranged vertically. Its top opening is connected to the inside of the drying cylinder and corresponds to the position of the drying grate plate. The slurry on the drying grate plate can fall into the transfer cylinder. The bottom of the transfer cylinder is provided with an anti-blocking discharge pipe 311. The anti-blocking discharge pipe is provided with a switching valve to switch its on-off state. The guide inclined plate is installed inside the transfer cylinder, which is located below the drying grate plate and extends obliquely below the drying grate plate. After the slurry on the drying grate plate falls into the inside of the transfer cylinder, it reaches the guide inclined plate and is guided by the guide inclined plate. In this embodiment, the guide inclined plate is installed in the transfer cylinder through a positioning slot and can be removed from the transfer cylinder. At this time, the slurry can be discharged through the anti-blocking discharge pipe, which is convenient for maintenance.

[0039] The rotary drying assembly includes a rotary frame 410 and a drying drum 420. The rotary frame is installed in the drying machine frame, and a rotary support wheel 411 is provided on the top of the rotary frame. The rotary support wheel is connected to the driving motor through a transmission mechanism, and the driving motor drives the rotary support wheel to rotate. The drying drum is placed on the rotary support wheel and is driven to rotate by the rotary support wheel. The feed end thereof extends into the interior of the transfer cylinder and cooperates with the guide ramp plate to make the slurry on the guide ramp plate fall into the drying drum. The discharge end thereof extends obliquely downward to make the slurry move along the drying drum. A heating rod is provided in the drying drum, and the heating rod heats the slurry in the drying drum. The hot air blown out by the drying fan can enter the drying drum through the transfer cylinder to assist in heating the slurry.

[0040] The slurry discharge assembly includes a discharge end pipe 500, which is installed in the drying machine frame, arranged in the horizontal direction and cooperates with the discharge end of the drying drum. Its axial discharge port 510 is connected to the slurry storage equipment. The slurry in the drying drum can enter the discharge end pipe and be transported to the slurry storage equipment through the axial discharge port. A switching valve is provided in the axial discharge port to switch its on and off state.

[0041] In this embodiment, a reverse nozzle 520 is also provided in the discharge end pipe. The reverse nozzle is connected to the compression device through a pipeline, and its end extends obliquely downward and points to the end of the drying drum. The slurry in the drying drum can be blown in reverse to extend its residence time in the drying drum.

[0042] The circulating reflux component includes a reflux side pipe 610 and a reflux belt 620. The reflux side pipe is installed at the bottom of the discharge end pipe. The slurry in the discharge end pipe can be discharged through the reflux side pipe. A switching valve is provided in the reflux side pipe to switch its on and off state. The feed port of the reflux belt is located below the reflux side pipe, and its discharge port is located above the inlet cone hopper, so that the slurry discharged from the reflux side pipe can be returned to the feed cone hopper through the reflux belt.

[0043] In the description of the present utility model, it should be noted that when terms such as "upper", "lower", "inner", "outer", "left", "right" and the like indicating orientation or positional relationship appear, it should be understood that the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the equipment or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, when terms such as "first" and "second" appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, terms such as "installation", "setting", and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A graphite slurry drying device with a circulation structure, characterized in that: include: A slurry feeding assembly, which is connected to a slurry supply device, and the slurry supply device transports slurry to the slurry feeding assembly; An air blast drying component is installed on the slurry feeding component and can perform air blast drying on the slurry entering the slurry feeding component; A transfer guide assembly is installed on the slurry feeding assembly, and can guide the slurry in the slurry feeding assembly after the blast drying process, so that it can be discharged to the outside of the blast drying assembly; A rotary drying component is connected with the transfer and diversion component, and the transfer and diversion component transfers the slurry after the blast drying treatment to the rotary drying component, and the rotary drying component further dries it; A slurry drainage component, which is connected to the rotary drying component, and the slurry dried in the rotary drying component can be discharged through the slurry drainage component; The circulating reflux component is connected with the slurry discharge component and the slurry inflow component, and can return the slurry discharged by the slurry discharge component to the slurry inflow component.

2. The graphite slurry drying device with a circulation structure according to claim 1, characterized in that: The slurry inflow components include: An inlet cone hopper is installed in the drying machine frame and arranged vertically, and its top is connected to the slurry supply equipment, and the slurry is transported to the inlet cone hopper by the slurry supply equipment; A conveying trough is installed at the bottom of the feed cone hopper and is connected to the inside of the feed cone hopper. It is arranged horizontally and extends to the blast drying component. A spiral blade is installed inside the conveying trough, and the spiral blade conveys the slurry in the feed cone hopper to the blast drying component.

3. The graphite slurry drying device with a circulation structure according to claim 2, characterized in that: The air drying components include: The drying cylinder is arranged vertically, and its side wall is connected to the end of the conveying trough, so that the slurry can enter the drying cylinder through the conveying trough. The top of the drying cylinder is also provided with an exhaust end pipe, which connects the inside and outside of the drying cylinder; A drying grate plate is installed inside the drying vertical cylinder, is located below the conveying trough, and extends obliquely downward to the conveying trough, so that the slurry in the conveying trough can fall onto the drying grate plate; The drying fan is installed on the outside of the drying cylinder, and its air outlet is connected to the bottom of the drying cylinder through a transfer guide groove and corresponds to the position of the drying grate plate. The drying fan blows hot air to the slurry on the drying grate plate.

4. The graphite slurry drying device with a circulation structure according to claim 3, characterized in that: The transfer guide assembly includes: The transfer cylinder is installed in the drying machine frame and arranged vertically. Its top opening is connected to the inside of the drying cylinder and corresponds to the position of the drying grate plate. The slurry on the drying grate plate can fall into the transfer cylinder. An anti-blocking drain pipe is opened at the bottom of the transfer cylinder. The guide inclined plate is installed inside the transfer cylinder, is located below the drying grate plate, and extends obliquely downward from the drying grate plate. The slurry on the drying grate plate falls into the transfer cylinder and reaches the guide inclined plate.

5. The graphite slurry drying device with a circulation structure according to claim 4, characterized in that: The spin drying assembly includes: The rotating frame is installed in the drying machine frame, and a rotating support wheel is provided on the top of the rotating frame. The rotating support wheel is connected with the driving motor through a transmission mechanism, and the driving motor drives the rotating support wheel to rotate; The drying drum is placed on a rotating support wheel and is driven to rotate by the rotating support wheel. Its feed end extends into the interior of the transfer vertical cylinder and cooperates with the guide inclined plate to make the slurry on the guide inclined plate fall into the drying drum. Its discharge end extends obliquely downward to make the slurry move along the drying drum. A heating rod is provided in the drying drum.

6. The graphite slurry drying device with a circulation structure according to claim 5, characterized in that: The slurry drainage components include: The discharge end pipe is installed in the drying machine frame, arranged in the transverse direction, and cooperates with the discharge end of the drying drum, and its axial discharge port is connected with the slurry storage equipment.

7. The graphite slurry drying device with a circulation structure according to claim 6, characterized in that: The circulation reflux components include: The reflux side pipe is installed at the bottom of the discharge end pipe. The slurry in the discharge end pipe can be discharged through the reflux side pipe. A switching valve is provided in the reflux side pipe to switch its on and off state; The reflux belt has a feed port located below the reflux side pipe and a discharge port located above the inlet cone hopper, so that the slurry discharged from the reflux side pipe can be returned to the feed cone hopper through the reflux belt.

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