Lignite upgrading and drying device
By using an auger to drive the lignite to roll and an inner wall cleaning device to remove adhering coal, combined with a screening and crushing device to break up large pieces of coal, the problem of blockage and low efficiency caused by lignite adhering to the inner wall of the drying device is solved, achieving efficient operation of the equipment and extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-03-27
AI Technical Summary
Lignite adheres to the inner wall of the drying unit, causing blockages, affecting equipment performance and service life, and resulting in low drying efficiency.
An auger is used to propel lignite onto the heating module, and an inner wall cleaning device removes adhering coal. A screening and crushing device is also installed to break up large pieces of coal, ensuring uniform heat distribution.
It effectively prevents equipment blockage, extends equipment life, and improves drying efficiency and production efficiency.
Smart Images
Figure CN224050992U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to lignite processing and utilization technical field, concretely relates to a lignite upgrading drying device. BACKGROUND
[0002] It is known that the occurrence of lignite on the earth is very huge, but the moisture content is high, the unit heat value is low, it is easy to self-ignite, easy to pulverize, the mechanical strength and thermal stability are low, which is not conducive to direct transportation and utilization, for many years, the world countries reduce the moisture content of lignite, thereby improving the unit heat value.
[0003] The patent with patent announcement number CN102072627 discloses a lignite upgrading drying device, which comprises a drying / sieving device, a preheating drying / sieving device, a hot blast furnace, a drying roller, a vibrating fluidized bed, a cyclone separator, a mist eliminator and a dust collector, the hot blast furnace is connected to the drying roller and the vibrating fluidized bed respectively, the outlet of the pre-drying / sieving device is connected to the drying roller and the vibrating fluidized bed respectively, the preheating drying / sieving device divides the lignite into two levels of large and small particle sizes, the high-temperature flue gas generated by the hot blast furnace is used as a heating medium, the low-oxygen gas remaining after the oxygen is separated by an air separation system is used to adjust the flue gas temperature, the drying roller and the vibrating fluidized bed are used to produce the upgrading lignite with large and small particle sizes, different production requirements are met, and a part of exhaust gas is discharged, circulates and is used for preheating the lignite raw material after mist removal.
[0004] However, the following problems exist at present: when the lignite adheres to the inner wall of the drying device, part of the coal cannot fully contact the heat source, so that the drying speed of the coal is reduced, the coal bed adheres to the inner wall of the equipment, the heat conduction efficiency is also reduced, the overall drying efficiency is affected, the adhered lignite accumulates in the drying process, which can cause the blockage phenomenon in the equipment, therefore, the lignite upgrading drying device is proposed. UTILITY MODEL CONTENT
[0005] The utility model aims at providing a kind of, can solve the problem of lignite adhering and piling up on the inner wall of equipment in relevant technology, cause equipment internal blockage, accelerate the corrosion or abrasion of equipment, affect the performance and service life of equipment.
[0006] The technical scheme adopted by the utility model is as follows:
[0007] The utility model provides a lignite upgrading drying device, including drying jar, the bottom of drying jar is fixedly connected with support base, the side of drying jar is fixedly connected with feeding port, the lower inner wall of drying jar is fixedly connected with heating module, the inner wall of drying jar is rotatably connected with auger, the auger is driven through motor, and the function of auger is to push lignite to move on heating module to discharge port and make lignite roll on heating module, and the function is even, and the inner wall of drying jar is provided with cleaning device, and the cleaning device includes cleaning motor, fixed link, the fixed link is fixedly connected in the inner wall circle center of drying jar, the outer rotatably connected of fixed link has the chute link, and the function of fixed link is to fix the one end of chute link in the inner wall of drying jar, and makes fixed link swing in the inner wall of drying jar, the side of drying jar is fixedly connected with cleaning motor, the output of cleaning motor penetrates the outer wall of drying jar, the output of cleaning motor is fixedly connected with rotating shaft, the one end of rotating shaft away from cleaning motor output is slidably connected in the chute of chute link, the one end of chute link away from fixed link is fixedly connected with arc link, and the function of arc link is to drive the inner wall brush to slide in the inner wall of drying jar, the side of arc link is fixedly connected with inner wall brush, and the function of inner wall brush is to slide in the inner wall of drying jar, and remove the lignite adhered to the inner wall, and the bottom of drying jar is fixedly connected with discharge port.
[0008] Preferably, the arc-shaped rod is attached to the inner wall of the drying jar, the top of the inner wall brush is attached to the inner wall of the drying jar, and the inner wall brush is triangular in shape, which can better remove the lignite adhered to the inner wall.
[0009] Preferably, the heating module is in the shape of a semi-cylindrical body, a circular groove is formed in the center of the heating module, and the two sides of the groove of the heating module are inclined surfaces. The two inclined surfaces of the heating module can make the lignite falling on both sides of the heating module slide to the central groove.
[0010] Preferably, the inner wall of the drying jar is provided with a screening and crushing device, the screening and crushing device includes two lignite extrusion plates and two screens, the two lignite extrusion plates are slidably connected to the top of the heating module on both sides, the top of the lignite extrusion plate is fixedly connected with a fixed block, the top of the fixed block is hingedly connected with an extension rod, the extension rod is hingedly connected to the outer wall of the arc-shaped rod, the function of the extension rod is to drive the lignite extrusion plate to slide on the top of the heating module, and the two screens are fixedly connected to the top of the heating module on both sides, the screen is located between the lignite extrusion plate and the auger, and the function of the screen is to pass small pieces of lignite and prevent large pieces of lignite from entering the heating module to be unevenly heated.
[0011] Preferably, the lignite extrusion plate is parallel to the sieve plate on one side close to the sieve plate, and the lignite extrusion plate is used to extrude and crush the large pieces of lignite that cannot pass through the sieve plate, and the side of the lignite extrusion plate away from the sieve plate is a slope, and the slope of the lignite extrusion plate is used to better shovel the lignite falling on the side away from the sieve plate and make it fall between the lignite extrusion plate and the sieve plate.
[0012] Preferably, the feeding port has two branch outlets in the interior of the drying tank, and the two branch outlets are respectively arranged on the side of the sieve plate away from the auger.
[0013] The utility model discloses obtained technical effect is:
[0014] The utility model discloses through the setting of clean motor, rotation axis, chute pole, fixed link, arc link, make the inner wall brush slide in drying tank inner wall to clean the inner wall to remove the lignite attached to the inner wall, avoid lignite adhesion and deposit on the inner wall of equipment, lead to the equipment internal block, accelerate the corrosion or wear and tear of equipment, influence equipment's performance and service life problem, thereby improve production efficiency.
[0015] The utility model discloses through the setting of telescopic link, fixed block, lignite extrusion plate, sieve plate, make the large piece of lignite cannot pass through sieve plate, be extruded and crushed after the lignite extrusion plate and sieve plate extrusion and pass through sieve plate, thereby avoid when lignite piece is bigger, the heat and moisture evaporation of drying device is difficult to even distribution, and the surface of the large piece of coal is easy to heat, but the inner layer is difficult to obtain enough heat, lead to drying speed slow, and the problem of low efficiency, break into small piece after, the surface area of lignite increases, help heat more evenly, rapidly conduct to the inside of coal, accelerate moisture evaporation, thereby improve drying efficiency. ACCURATE DRAWINGS
[0016] Figure 1 It is the structure schematic diagram of the whole of the utility model;
[0017] Figure 2 It is the structure schematic diagram of the auger of the utility model;
[0018] Figure 3 It is the structure schematic diagram of the drying tank of the utility model;
[0019] Figure 4 It is the structure schematic diagram of the cleaning device of the utility model;
[0020] Figure 5 It is the structure schematic diagram of the screening and crushing device of the utility model.
[0021] In the drawings, the component list represented by each sign is as follows:
[0022] 1, drying tank; 2, support base; 3, feed inlet; 4, heating module; 5, auger; 6, cleaning device; 61, cleaning motor; 62, rotating shaft; 63, chute rod; 64, fixed rod; 65, arc rod; 66, inner wall brush; 7, screening and crushing device; 71, telescopic rod; 72, fixed block; 73, lignite extrusion plate; 74, sieve plate; 8, discharge port. DETAILED DESCRIPTION
[0023] In order to make the purpose and advantages of the utility model more clear and obvious, the following will be specifically described by combining with the embodiment, and it should be understood that the following text is only used to describe one or several specific embodiments of the utility model, and does not strictly limit the protection scope of the utility model specifically requested.
[0024] As shown in Figure 1 A lignite upgrading and drying device, as shown in Fig. 4, comprises a drying tank 1, a support base 2 fixedly connected to the bottom of the drying tank 1, a feed inlet 3 fixedly connected to the side of the drying tank 1, a heating module 4 fixedly connected to the inner wall below the drying tank 1, an auger 5 rotatably connected to the inner wall of the drying tank 1, the auger 5 being driven by a motor, the auger 5 serving to push the lignite to move on the heating module 4 towards the discharge port 8 and to make the lignite roll on the heating module 4, thereby being evenly heated, the inner wall of the drying tank 1 being provided with a cleaning device 6, the cleaning device 6 comprising a cleaning motor 61, a fixed rod 64 fixedly connected to the center of the inner wall of the drying tank 1, a chute rod 63 rotatably connected to the outside of the fixed rod 64, the fixed rod 64 serving to fix one end of the chute rod 63 to the inner wall of the drying tank 1, so that the fixed rod 64 swings in the inner wall of the drying tank 1, the cleaning motor 61 being fixedly connected to the side of the drying tank 1, the output end of the cleaning motor 61 penetrating through the outer wall of the drying tank 1, the output end of the cleaning motor 61 being fixedly connected to a rotating shaft 62, one end of the rotating shaft 62 away from the output end of the cleaning motor 61 being slidably connected to the chute of the chute rod 63, one end of the chute rod 63 away from the fixed rod 64 being fixedly connected to an arc rod 65, the arc rod 65 serving to drive an inner wall brush 66 to slide in the inner wall of the drying tank 1, the arc rod 65 being fixedly connected to the side of the inner wall brush 66, the inner wall brush 66 serving to slide in the inner wall of the drying tank 1 and to remove the lignite adhered to the inner wall, the bottom of the drying tank 1 being fixedly connected to a discharge port 8, the arc rod 65 being in close contact with the inner wall of the drying tank 1, the top of the inner wall brush 66 being in close contact with the inner wall of the drying tank 1, the inner wall brush 66 being triangular in shape, the triangular inner wall brush 66 can better remove the lignite adhered to the inner wall, the heating module 4 being semicylindrical in shape, a circular groove being formed in the center of the heating module 4, the two sides of the groove of the heating module 4 being inclined, the two inclined sides of the heating module 4 can make the lignite falling on the two sides of the heating module 4 slide to the center groove.
[0025] According to the above structure, when the motor rotates, the motor drives the auger 5 to rotate, the rotation of the auger 5 makes the lignite added from the feed inlet 3 move on the heating module 4, when the cleaning motor 61 rotates, the output end of the cleaning motor 61 drives the rotating shaft 62 to rotate, the rotating shaft 62 drives the chute rod 63 to swing in the inner wall of the drying tank 1, the chute rod 63 drives the arc-shaped rod 65 to swing, the arc-shaped rod 65 drives the inner wall brush 66 to slide in the inner wall of the drying tank 1, so that the inner wall brush 66 cleans the inner wall of the drying tank 1, thereby removing the lignite attached to the inner wall, avoiding the lignite adhering and accumulating on the inner wall of the equipment, causing the equipment to be blocked, accelerating the corrosion or wear of the equipment, affecting the performance and service life of the equipment, and improving the production efficiency.
[0026] As shown in Figure 5 The inner wall of the drying tank 1 is provided with a screening and crushing device 7, the screening and crushing device 7 includes two lignite extrusion plates 73 and two screen plates 74, the two lignite extrusion plates 73 are respectively slidably connected to the top of the heating module 4, the top of the lignite extrusion plate 73 is fixedly connected with a fixed block 72, the top of the fixed block 72 is hingedly connected with an extension rod 71, the extension rod 71 is hingedly connected to the outer wall of the arc-shaped rod 65, the extension rod 71 drives the lignite extrusion plate 73 to slide on the top of the heating module 4, the two screen plates 74 are respectively fixedly connected to the top of the heating module 4, the screen plate 74 is located between the lignite extrusion plate 73 and the auger 5, the screen plate 74 allows small pieces of lignite to pass through, preventing large pieces of lignite from entering the heating module 4 and being unevenly heated, the side of the lignite extrusion plate 73 close to the screen plate 74 is parallel to the screen plate 74, the lignite extrusion plate 73 extrudes large pieces of lignite that cannot pass through the screen plate 74, the side of the lignite extrusion plate 73 away from the screen plate 74 is inclined, the inclined side of the lignite extrusion plate 73 can better shovel the lignite falling on the side away from the screen plate 74 and make it fall between the lignite extrusion plate 73 and the screen plate 74, the feed inlet 3 has two branch outlets in the interior of the drying tank 1, the two branch outlets are respectively arranged on the side of the screen plate 74 away from the auger 5.
[0027] According to the above structure, when the lignite is added from the feeding port 3, the lignite is transported to the space between the sieve plate 74 and the lignite extruding plate 73 through the branch of the feeding port 3, when the arc-shaped rod 65 slides on the inner wall of the drying tank 1, the arc-shaped rod 65 drives the telescopic rod 71 to move, the telescopic rod 71 drives the fixed block 72 to move, the fixed block 72 drives the lignite extruding plate 73 to slide on the top of the heating module 4, the lignite extruding plate 73 drives the lignite to slide to the sieve plate 74, the granular lignite can directly pass through the sieve plate 74, the large lignite cannot pass through and is crushed by the lignite extruding plate 73 and the sieve plate 74 and then passes through the sieve plate 74, so that when the lignite is large, the heat and the moisture evaporation of the drying device cannot be uniformly distributed, the surface of the large lignite is easy to absorb heat, but the inner layer is difficult to obtain enough heat, the drying speed is slow and the efficiency is low, after being crushed into small pieces, the surface area of the lignite is increased, which is helpful for the heat to be more uniformly and rapidly conducted to the inside of the lignite, the evaporation of the moisture is accelerated, and the drying efficiency is improved.
[0028] The above only describes the preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application are implemented according to the conventional means in the art, unless otherwise specified and limited.
Claims
1. A lignite upgrading and drying apparatus, characterized by: The utility model provides drying tank (1), the bottom of drying tank (1) is fixedly connected with support base (2), the side of drying tank (1) is fixedly connected with feed inlet (3), the lower inner wall of drying tank (1) is fixedly connected with heating module (4), the inner wall of drying tank (1) is rotatably connected with auger (5), auger (5) is driven by motor, the inner wall of drying tank (1) is provided with cleaning device (6), cleaning device (6) includes cleaning motor (61), fixed link (64) is fixedly connected in the inner wall center of drying tank (1), the outer rotatably connected of fixed link (64) has chute link (63), cleaning motor (61) is fixedly connected at the side of drying tank (1), the output of cleaning motor (61) penetrates the outer wall of drying tank (1), the output of cleaning motor (61) is fixedly connected with rotating shaft (62), the one end of rotating shaft (62) away from cleaning motor (61) output is slidably connected in the chute of chute link (63), the one end of chute link (63) away from fixed link (64) is fixedly connected with arc link (65), the side of arc link (65) is fixedly connected with inner wall brush (66), the bottom of drying tank (1) is fixedly connected with discharge gate (8).
2. A lignite upgrading and drying apparatus as claimed in claim 1, characterized in that: The arc link (65) is attached to the inner wall of the drying tank (1), the top of the inner wall brush (66) is attached to the inner wall of the drying tank (1), and the shape of the inner wall brush (66) is triangular.
3. The lignite upgrading and drying apparatus as claimed in claim 1, wherein: The heating module (4) is in the shape of a semi-cylinder, a circular groove is formed in the center of the heating module (4), and the two sides of the groove of the heating module (4) are inclined surfaces.
4. The lignite upgrading and drying apparatus as claimed in claim 1, wherein: The inner wall of the drying tank (1) is provided with a screening and crushing device (7), the screening and crushing device (7) includes two lignite extrusion plates (73), two screen plates (74), the two lignite extrusion plates (73) are slidably connected on both sides of the top of the heating module (4), the top of the lignite extrusion plate (73) is fixedly connected with a fixed block (72), the top of the fixed block (72) is hingedly connected with an extension rod (71), the extension rod (71) is hingedly connected to the outer wall of the arc link (65), and the two screen plates (74) are fixedly connected on both sides of the top of the heating module (4).
5. A lignite upgrading and drying apparatus as claimed in claim 4, characterized in that: The side of the lignite extrusion plate (73) close to the screen plate (74) is parallel to the screen plate (74), and the side of the lignite extrusion plate (73) away from the screen plate (74) is an inclined surface.
6. A lignite upgrading and drying apparatus as claimed in claim 4, characterized in that: The feed inlet (3) has two branch outlets inside the drying tank (1), and the two branch outlets are arranged on the sides of the screen plates (74) away from the auger (5).