Quantitative feeding and stirring device for coal water slurry preparation

Abstract

The utility model relates to the technical field of coal water slurry preparation, specifically to a coal water slurry preparation quantitative feeding and stirring equipment, including stirring energy supply mechanism, install the mixing mechanism in stirring energy supply mechanism, the stirring energy supply mechanism includes the bracing plate, the inner side of bracing plate is installed with the protective outer tube, the inside movable mounting of bracing plate has truss, the inside movable mounting of bracing plate has two -way screw rod, and two -way screw rod screw thread is installed in truss plate section. Through setting six plug bars of uniform distribution in the inner chamber of rotating inner cylinder, and utilizing multiple outer clamping plates and inner clamping plates to connect multiple stirring blades of uniform distribution, after the relative lifting of main shaft along the center position of rotating inner cylinder, the end of multiple stirring blades of uniform distribution close to main shaft will be correspondingly inclined, when multiple stirring blades after inclination are rotated by main shaft, the slurry filled to rotating inner cylinder will be fully stirred, to avoid that the surface layer of slurry body is stirred with too low energy and generates flocculation.

Description

Technical Field

[0001] This utility model relates to the field of coal-water slurry preparation technology, specifically to a quantitative feeding and mixing device for coal-water slurry preparation. Background Technology

[0002] Coal-water slurry is a low-pollution, high-efficiency, pipeline-transportable coal-based fluid fuel that uses coal, water, and additives and is supported by physical stirring.

[0003] There are certain drawbacks in the preparation of coal-water slurry through material mixing. When the coal solid content increases, the viscosity of the slurry will rise sharply. The mixing energy of the surface layer of the slurry in the mixing device will vary. As the mixing time increases, the material with low mixing energy on the surface of the slurry will generate flocs and experience breakage and circulation, which will have a great impact on the texture of the coal-water slurry. In severe cases, it will also cause blockage of the feed hole of the mixing device.

[0004] In view of this, a quantitative feeding and mixing device for preparing coal-water slurry was designed to solve the above problems. Utility Model Content

[0005] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by this utility model is as follows: A quantitative feeding and mixing device for preparing coal-water slurry includes a mixing and power supply mechanism and a mixing mechanism installed within the mixing and power supply mechanism. The mixing and power supply mechanism includes a support plate, a protective outer cylinder installed on the inner side of the support plate, a truss movably installed inside the support plate, a bidirectional screw movably installed inside the support plate with threads inside the truss plate section, an auxiliary rotating shaft sleeve movably installed at the inner end of the truss, a housing movably installed inside the support plate, a motor fixedly installed inside the housing, a cross-shaped guide rod fixedly installed at the outer end of the drive shaft inside the motor, a drive wheel movably installed on the cross-shaped guide rod, and a drive belt drivingly connected to the drive wheel. The mixing mechanism includes a main shaft movably installed within the auxiliary rotating shaft sleeve, a rotating inner cylinder movably installed inside the protective outer cylinder, multiple inner clamping plates fixedly installed on the main shaft, mixing blades movably installed inside the inner clamping plates, outer clamping plates movably installed at the outer ends of the mixing blades, and inserts fixedly installed on the outer clamping plates.

[0007] In a preferred embodiment, the present invention can be further configured such that: a base is fixedly installed at the bottom of the support plate, and a vertical hole is opened in the rod section at the bottom of the protective outer cylinder, and a bearing is fixedly installed in the vertical hole.

[0008] In a preferred embodiment, the present invention can be further configured such that a lever arm is movably mounted on one end of the truss plate, and the other end of the lever arm is movably mounted on the chassis.

[0009] In a preferred embodiment, the present invention can be further configured such that: a horizontally placed support plate is fixedly installed on the top of the inner side of the truss, and a horizontal groove is opened inside the support plate, and a cross-shaped guide rod is adapted to pass through the horizontal groove.

[0010] In a preferred embodiment, the present invention can be further configured such that: two inclined rails are fixedly installed at the inner end of the truss, and the T-shaped column heads on both sides of the auxiliary rotation shaft sleeve are respectively movably installed in the two inclined rails.

[0011] In a preferred embodiment, the present invention can be further configured as follows: the bottom of the rotating inner cylinder is provided with a through hole, the top of the rotating inner cylinder is provided with a plurality of studs, the top of the rotating inner cylinder is provided with a top washer ring, and the bottom end of the main shaft is adapted to pass through the through hole; an auxiliary wheel is fixedly installed on the top end of the main shaft, and the other end of the transmission belt is connected to the auxiliary wheel.

[0012] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: 1. This utility model sets six evenly distributed inserts in the inner cavity of the rotating inner cylinder, and connects multiple evenly distributed stirring blades using multiple outer and inner clamping plates. As the main shaft moves up and down relative to the center of the rotating inner cylinder, the ends of the evenly distributed stirring blades near the main shaft will tilt accordingly. When the main shaft drives the tilted stirring blades to rotate, the slurry filled into the rotating inner cylinder will be fully stirred, avoiding the formation of flocs due to insufficient stirring energy on the surface of the slurry.

[0013] 2. This utility model controls the main shaft to move up and down along the rotating inner cylinder in a regular manner, while multiple evenly distributed stirring blades change their tilt angle during rotation. The slurry that is fully stirred will be quantitatively discharged through the through hole at the bottom of the main shaft and the rotating inner cylinder. This process can effectively improve the efficiency of slurry release and avoid the problem of the discharge hole of the device being blocked. Attached Figure Description

[0014] Figure 1 This is a schematic diagram illustrating the use of this utility model; Figure 2 This is a bottom view of the present invention; Figure 3 This is a schematic diagram of the stirring and power supply mechanism of this utility model; Figure 4 This utility model Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the mixing mechanism of this utility model.

[0015] Figure label: 100. Mixing and power supply mechanism; 110. Base; 120. Support plate; 130. Protective outer cylinder; 1301. Bearing; 140. Truss; 1401. Lever arm; 150. Chassis; 1501. Motor; 1502. Drive wheel; 1503. Transmission belt; 160. Double-acting lead screw; 170. Auxiliary shaft sleeve; 1701. Support plate; 200. Mixing mechanism; 210. Rotating inner cylinder; 2101. Stud; 220. Top washer ring; 230. Insert bar; 2301. Outer clamping plate; 240. Mixing blade; 250. Main shaft; 2501. Inner clamping plate; 260. Assist wheel. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0017] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of this invention.

[0018] The following describes, with reference to the accompanying drawings, some embodiments of a water-coal slurry preparation quantitative feeding and mixing device provided by this utility model.

[0019] Example 1: Combination Figures 1 to 5 As shown, the present invention provides a quantitative feeding and mixing device for preparing coal-water slurry, including a mixing and power supply mechanism 100 and a mixing mechanism 200 installed in the mixing and power supply mechanism 100. The mixing and power supply mechanism 100 is used to provide the mixing mechanism 200 with kinetic energy for mixing and effective support. The mixing mechanism 200 is used to fully mix the slurry.

[0020] The mixing power supply mechanism 100 includes a support plate 120, a protective outer cylinder 130 installed on the inner side of the support plate 120, a truss 140 movably installed inside the support plate 120, a double-acting screw 160 movably installed inside the support plate 120, and the double-acting screw 160 is threaded into the plate segment of the truss 140. An auxiliary rotating shaft sleeve 170 is movably installed at the inner end of the truss 140. A housing 150 is movably installed inside the support plate 120. A motor 1501 is fixedly installed inside the housing 150. A cross-shaped guide rod is fixedly installed at the outer end of the drive shaft inside the motor 1501, and a drive wheel 1502 is movably installed on the cross-shaped guide rod. A drive belt 1503 is connected to the drive wheel 1502. The mixing mechanism 200 includes a main shaft 250 movably installed in the auxiliary rotating shaft sleeve 170, a rotating inner cylinder 210 movably installed inside the protective outer cylinder 130, a plurality of inner clamping plates 2501 fixedly installed on the main shaft 250, a mixing blade 240 movably installed inside the inner clamping plate 2501, an outer clamping plate 2301 movably installed at the outer end of the mixing blade 240, and an insert 230 fixedly installed on the outside of the outer clamping plate 2301. The bottom of the rotating inner cylinder 210 is provided with a through hole, the top of the rotating inner cylinder 210 is provided with multiple studs 2101, the top of the rotating inner cylinder 210 is provided with a top washer ring 220, and the bottom end of the main shaft 250 is adapted to pass through the through hole. The top of the main shaft 250 is fixedly installed with an auxiliary wheel 260, and the other end of the transmission belt 1503 is connected to the auxiliary wheel 260.

[0021] In use, the double-acting screw 160 is pre-rotated until the truss 140 extends inward along the threaded section of the truss 140. The auxiliary rotating sleeve 170 will descend under the pressure of the truss 140. The main shaft 250, together with multiple inner clamping plates 2501, will drive the inner ends of multiple stirring blades 240 to tilt relative to each other until the bottom end of the main shaft 250 is inserted into the through hole at the bottom of the rotating inner cylinder 210. Then, coal, water and additives are filled into the inner cavity of the rotating inner cylinder 210. After the motor 1501 starts and runs, the drive wheel 1502 fixed on the transmission shaft inside the motor 1501 will drive the transmission belt 1503 and the auxiliary wheel 260 to rotate. Finally, the main shaft 250 will rotate in conjunction with the tilted multiple stirring blades 240, and the slurry in the inner cavity of the rotating inner cylinder 210 will be fully stirred. During the stirring process, the main shaft 250 is controlled to rise until the bottom rod section of the main shaft 250 disengages from the bottom through hole of the rotating inner cylinder 210. At this time, the fully stirred slurry will be quantitatively discharged through the bottom through hole of the rotating inner cylinder 210.

[0022] Example 2: Combination Figures 3-5 As shown, in the above embodiment, a base 110 is fixedly installed at the bottom of the support plate 120, and a vertical hole is opened in the rod section at the bottom of the protective outer cylinder 130, and a bearing 1301 is fixedly installed in the vertical hole. A lever arm 1401 is movably installed on the plate end of the truss 140, and the other end of the lever arm 1401 is movably installed on the chassis 150. A horizontal support plate 1701 is fixedly installed on the top of the inner side of the truss 140. A horizontal groove is opened inside the support plate 1701, and a cross-shaped guide rod is adapted to pass through the horizontal groove. Two inclined rails are fixedly installed at the inner end of the truss 140, and the T-shaped column heads on both sides of the auxiliary rotation sleeve 170 are respectively movably installed in the two inclined rails.

[0023] Preferably, the rod segment at the bottom of the rotating inner cylinder 210 is fixedly installed inside the bearing 1301, and a hollow partition is reserved in the inner cavity of the rotating inner cylinder 210 and the protective outer cylinder 130 to reduce the interference of external high temperature on the slurry stirred in the inner cavity of the rotating inner cylinder 210, and the plate end of the machine box 150 facing the lever arm 1401 is movably installed in the vertical groove at the top of the support plate 120. As the outer end wheel of the double-acting screw 160 is rotated, the plate end of the truss 140 will move laterally along the threaded section of the double-acting screw 160. By controlling the relative lateral movement of the truss 140, the main shaft 250 is raised and lowered longitudinally in coordination with the auxiliary rotating bushing 170.

[0024] The working principle and usage process of this utility model are as follows: The bidirectional lead screw 160 is pre-rotated until the truss 140 extends inward. The two inclined rails at the inner end of the truss 140 push the auxiliary rotating sleeve 170 to descend downward. The main shaft 250 and the auxiliary wheel 260, which are movably installed inside the auxiliary rotating sleeve 170, will descend downward. The inner ends of the evenly distributed stirring blades 240 will tilt downward. At the same time, the descent of the auxiliary wheel 260 will also drive the transmission belt 1503 and the drive wheel 1502 to descend. The drive wheel 1502 will descend accordingly along the cross-shaped guide rod at the outer end of the transmission shaft inside the motor 1501. Next, 65% coal, 34% water, and 1% additives are filled into the inner cavity of the rotating inner cylinder 210. Then, the motor 1501 is run, and its internal transmission shaft, together with the cross-shaped guide rod at its outer end, drives the drive wheel 1502 to rotate. The drive wheel 1502 drives the transmission belt 1503, which in turn drives the auxiliary wheel 260 and the main shaft 250 to rotate. Multiple stirring blades 240, which are movably connected by multiple inner clamping plates 2501, along with six evenly distributed inserts 230, stir the slurry in the inner cavity of the rotating inner cylinder 210. At this time, the slurry is fully stirred, avoiding the problem of floc formation and crushing cycle caused by excessive difference in stirring energy on the surface of coal powder, and avoiding the disadvantage of decreased slurry stability and stratification.

[0025] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A quantitative feeding and mixing device for preparing coal-water slurry, comprising a mixing and power supply mechanism (100), characterized in that, It also includes a mixing mechanism (200) installed in the mixing power supply mechanism (100); The stirring power supply mechanism (100) includes a support plate (120), a protective outer cylinder (130) is installed on the inner side of the support plate (120), a truss (140) is movably installed inside the support plate (120), a double-acting screw (160) is movably installed inside the support plate (120), and the double-acting screw (160) is threaded into the plate segment of the truss (140). An auxiliary rotating shaft sleeve (170) is movably installed at the inner end of the truss (140). A housing (150) is movably installed inside the support plate (120). A motor (1501) is fixedly installed inside the housing (150). A cross-shaped guide rod is fixedly installed at the outer end of the drive shaft inside the motor (1501), and a drive wheel (1502) is movably installed on the cross-shaped guide rod. A drive belt (1503) is connected to the drive wheel (1502). The mixing mechanism (200) includes a main shaft (250) movably installed in the auxiliary rotating shaft sleeve (170), a rotating inner cylinder (210) movably installed inside the protective outer cylinder (130), a plurality of inner clamping plates (2501) fixedly installed on the main shaft (250), a stirring blade (240) movably installed inside the inner clamping plate (2501), an outer clamping plate (2301) movably installed at the outer end of the stirring blade (240), and an insert (230) fixedly installed on the outside of the outer clamping plate (2301).

2. The quantitative feeding and mixing equipment for preparing coal-water slurry according to claim 1, characterized in that, The bottom of the support plate (120) is fixedly installed with a base (110), and a vertical hole is opened in the rod section at the bottom of the protective outer cylinder (130), and a bearing (1301) is fixedly installed in the vertical hole.

3. The quantitative feeding and mixing equipment for preparing coal-water slurry according to claim 1, characterized in that, A lever arm (1401) is movably mounted on one end of the truss (140), and the other end of the lever arm (1401) is movably mounted on the chassis (150).

4. The water-coal slurry preparation quantitative feeding and mixing equipment according to claim 1, characterized in that, A horizontally placed support plate (1701) is fixedly installed on the top of the inner side of the truss (140). The support plate (1701) has a horizontal groove inside, and a cross-shaped guide rod is adapted to pass through the horizontal groove.

5. The quantitative feeding and mixing equipment for preparing coal-water slurry according to claim 1, characterized in that, The inner end of the truss (140) is fixedly installed with two inclined rails, and the T-shaped column heads on both sides of the auxiliary rotating bushing (170) are respectively movably installed in the two inclined rails.

6. The quantitative feeding and mixing equipment for preparing coal-water slurry according to claim 1, characterized in that, The bottom of the rotating inner cylinder (210) is provided with a through hole, the top of the rotating inner cylinder (210) is provided with a plurality of studs (2101), the top of the rotating inner cylinder (210) is provided with a top washer ring (220), and the bottom end of the main shaft (250) is adapted to pass through the through hole. The top end of the main shaft (250) is fixedly installed with an auxiliary wheel (260), and the other end of the transmission belt (1503) is connected to the auxiliary wheel (260).

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