A push-type blanking device

Abstract

The present invention discloses a pusher type blanking device. It includes a plurality of support columns, with a first housing fixed to the upper side of the support columns, a second housing fixed to the upper side of the first housing, a feed inlet provided at the upper end of the second housing, and its lower end extending into the first housing. A plurality of material distribution openings are provided at the lower end of the second housing. A material support plate is fixed inside the first housing, and a push plate assembly is provided between the material support plate and the material distribution openings. The push plate assembly includes a plurality of groups of side plates arranged at intervals in pairs, and a push plate is fixed between the middle parts of each group of side plates. By arranging a material support plate inside the first housing and a push plate assembly on the upper side of the material support plate in the present invention, the material can be accumulated on the upper side of the push plate assembly and inside the second housing, thereby achieving the air lock effect of the material. The uniform feeding can be controlled through the pushing mechanism, further improving the operation stability of the mill.

Description

Technical Field

[0001] The present invention relates to the technical field of push-type blanking devices, and particularly relates to a push-type blanking device. Background Art

[0002] Vertical mills are ideal large-scale grinding equipment, which are widely used in industries such as cement, electric power, metallurgy, chemical industry, and non-metallic minerals. It integrates crushing, drying, grinding, classification, and transportation, with high production efficiency, and can grind lump, granular, and powdery raw materials into the required powdery materials.

[0003] During the vertical mill grinding process, high-temperature gas is required to heat and dry the materials. In order to prevent the entry of low-temperature air from the outside into the mill, which reduces the drying capacity of the mill and increases the air volume of the system, resulting in unnecessary power consumption of the system, it is necessary to minimize the air leakage of the system during the material transportation process.

[0004] During the feeding process of the mill, the existing rotary blanking device or three-way gate valve feeds the material in batches, and the feeding of the mill is intermittent feeding. The intermittency of the mill feeding causes the mill to operate unstably to a certain extent. Summary of the Invention

[0005] The purpose of the present invention is to provide a push-type blanking device aiming at the deficiencies existing in the prior art.

[0006] To achieve the above purpose, the present invention provides a push-type blanking device, which includes a plurality of support columns. A first housing is fixed on the upper side of the support columns, a second housing is fixed on the upper side of the first housing. An inlet is provided at the upper end of the second housing, and its lower end extends into the first housing. A plurality of material distribution ports are provided at the lower end of the second housing. A material support plate is fixed inside the first housing. A push plate assembly is provided between the material support plate and the material distribution ports. The push plate assembly includes several groups of side plates arranged at intervals in pairs. A push plate is fixed between the middle parts of each group of side plates. The upper ends of each group of side plates are respectively arranged above both sides of a material distribution port. The upper end of the push plate is arranged below the material distribution port, so that the material falls into the area between the side plates on both sides of the push plate and the material support plate and accumulates. One side of the push plate assembly is connected with a pushing mechanism, and the pushing mechanism is used to push the push plate assembly to move back and forth in the first housing. When the push plate moves back and forth, the material can be pushed out from the front and back sides of the material support plate. An outlet is respectively provided on the first housing below both sides of each group of side plates.

[0007] Further, support wheels are provided on both sides of the push plate assembly, and wheel tracks are provided inside both sides of the first housing. The support wheels are in rolling connection with the wheel tracks.

[0008] Further, the supporting wheels include a number of first supporting wheels and second supporting wheels which are arranged perpendicular to each other, and the inner side of the first housing is provided with a first track and a second track which cooperate with the first supporting wheels and the second supporting wheels respectively.

[0009] Further, the side plates include 1 to 4 groups, and both ends of each group of side plates are fixedly connected to the connecting beams respectively.

[0010] Further, a connecting seat is provided in the middle of one of the connecting beams. The pushing mechanism includes a connecting rod whose one end is hinged to the connecting seat. The other end of the connecting rod passes through an avoidance hole on the first housing and is arranged outside the first housing, and the other end thereof is hinged to one end of an L-shaped push rod. A support rod is fixed on the first housing, and the L-shaped push rod is hinged to the support rod. A soft seal is provided between the connecting rod and the first housing.

[0011] Further, a limiting stop block is also fixed inside the first housing. The limiting stop block is arranged on the front and rear sides of the push plate assembly and cooperates with the connecting beam for limiting.

[0012] Further, there are 4 support columns, and the 4 support columns are symmetrically arranged on the lower sides of both ends of the first housing.

[0013] Further, a weight sensor is provided on the lower side of the support column to control the operation of the pushing mechanism according to the value of the weight sensor.

[0014] Further, an angle steel is bolted to the inner side of the first housing, and the material support plate is fixed on the upper side of the angle steel.

[0015] Beneficial effects: By arranging a material support plate inside the first housing and a push plate assembly on the upper side of the material support plate, the present invention enables materials to be stacked on the upper side of the push plate assembly and inside the second housing, thereby achieving the effect of air lock for the materials. The uniform feeding can be controlled by the pushing mechanism, further improving the operation stability of the mill. Description of the Drawings

[0016] Figure 1 is a three-dimensional structural schematic diagram of the push-type feeder according to an embodiment of the present invention;

[0017] Figure 2 is a sectional schematic diagram of the push-type feeder according to an embodiment of the present invention;

[0018] Figure 3 is Figure 2 a partial enlarged schematic diagram of area A in

[0019] Figure 4 is a structural schematic diagram of the push plate assembly according to an embodiment of the present invention;

[0020] Figure 5It is a schematic diagram when the push plate assembly is in the initial state;

[0021] Figure 6 It is a schematic diagram when the push plate assembly moves forward for blanking;

[0022] Figure 7 It is a schematic diagram when the push plate assembly moves backward for blanking. Detailed implementation manners

[0023] The present invention will be further clarified below in conjunction with the accompanying drawings and specific embodiments. These embodiments are implemented on the premise of the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention.

[0024] As Figures 1 to 7 shown, an embodiment of the present invention provides a push-type blanking device, which includes a plurality of support columns 1. A first housing 2 is fixed on the upper side of the support column 1. A second housing 3 is fixed on the upper side of the first housing 2. A feed inlet 31 is provided at the upper end of the second housing 3. The lower end of the second housing 3 extends into the first housing 2. A plurality of material distribution ports 32 are provided at the lower end of the second housing 3. The material 15 entering from the feed inlet 31 can fall from the material distribution ports 32. A material support plate 4 is fixed inside the first housing 2. A push plate assembly 5 is provided between the material support plate 4 and the material distribution ports 32. Among them, the push plate assembly 5 includes a plurality of groups of side plates 51 arranged at intervals in pairs. A push plate 52 is fixed between the middle parts of each group of side plates 51. The upper ends of each group of side plates 51 are respectively arranged above both sides of a material distribution port 32, that is, the upper ends of the side plates 51 are higher than the lower ends of the material distribution ports 32. The upper end of the push plate 52 is arranged below the feed inlet 32, so that after the material 15 falls from the material distribution port 32, it can evenly fall on the area between the side plates 51 on both sides of the push plate 52 and the material support plate 4. The material 15 can be stacked in this area and inside the second housing 3. A pushing mechanism is connected to one side of the push plate assembly 5. The pushing mechanism is used to push the push plate assembly 5 to move back and forth inside the first housing 2. When the push plate 52 moves back and forth, the material 15 can be pushed out and fall from the front and back sides of the material support plate 4. An outlet 6 is respectively provided on the first housing 2 below both sides of each group of side plates 51. The material 15 falling from both sides of the material support plate 4 can respectively enter the outlet 6.

[0025] In order to facilitate the forward and backward movement of the push plate assembly 5 within the first housing 2, mutually cooperating slide rails and slide grooves may be provided between the two sides of the push plate assembly 5 and the first housing 2. More preferably, support wheels 7 are provided on the two sides of the push plate assembly 5, and wheel rails are provided inside the two sides of the first housing 2. The support wheels 7 are in rolling connection with the wheel rails. The support wheels 7 are fixed to the two outermost side plates 51 by means of a support wheel shaft 73, bolts 74, washers 75, etc. The support wheels 7 of the embodiments of the present invention preferably include a number of first support wheels 71 and second support wheels 72, and the first support wheels 71 and the second support wheels 72 are arranged perpendicular to each other. First wheel rails 81 and second wheel rails 82 that cooperate with the first support wheels 71 and the second support wheels 72 respectively are provided inside the first housing 2. The push plate assembly 5 is supported by the first support wheels 71 and the first wheel rails 81 as well as the second support wheels 72 and the second wheel rails 82. Other methods such as pendulum support or four-bar linkage support may also be used to achieve this.

[0026] The number of the side plates 51 of the embodiments of the present invention can be changed according to actual needs, generally including 1 to 4 groups. The two ends of each group of side plates 51 are fixedly connected to the connecting beams 53 respectively. A gap is preferably provided between the lower ends of the side plates 51 and the push plate 52 and the material support plate 4 to avoid affecting the pushing. It should be noted that the number of the material distribution openings 32 and the number of the discharge openings 6 are the same as the number of groups of the side plates 51.

[0027] A connection seat 54 is provided in the middle of one of the connecting beams 53. The pushing mechanism includes a connecting rod 9 with one end hinged to the connection seat 54. An avoidance hole is provided on the first housing 2. The other end of the connecting rod 9 passes through the avoidance hole and is arranged outside the first housing 2. The other end of the connecting rod 9 is hinged to one end of an L-shaped push rod 10. A support rod 11 is fixed on the first housing 2, and the L-shaped push rod 10 is hinged to the support rod 11. In order to ensure the sealing performance, a flexible seal (not shown in the figure) is provided between the connecting rod 9 and the first housing 2. The flexible seal can close the avoidance hole and does not affect the normal movement of the connecting rod 9. The flexible seal can refer to the movable seal methods in the prior art, such as the seal methods at positions such as the car handbrake. It should be noted that the pushing mechanism can also be realized by means of hydraulic drive or driving the connecting rod by a variable frequency reduction motor, etc.

[0028] It is also preferably that a limit stop block 12 is fixed inside the first housing 2. The limit stop block 12 is preferably L-shaped and is fixed inside the first housing 2 by means of a number of bolts. Four limit stop blocks 12 are preferably used. The four limit stop blocks 12 are fixedly arranged in pairs at the two ends of the front and rear sides of the push plate assembly 5. Its height is preferably close to the height of the connecting beam 53, and then it cooperates with the connecting beam 53 for limiting.

[0029] Preferably, there are 4 supports 1 in the embodiments of the present invention, and the 4 supports 1 are symmetrically arranged on the lower sides of both ends of the first housing 2. Preferably, a weight sensor 13 is provided on the lower side of the support 1 to control the operation of the pushing mechanism according to the value of the weight sensor 13. Angle steels 14 are bolted to the inner side of the first housing 2, and the material support plate 4 is fixed to the upper side of the angle steels 14. Preferably, the material support plate 4 is fixedly welded to the angle steels 14.

[0030] Referring to Figures 5 to 7 , during operation, in the initial state, the push plate 52 is located at the middle position of the push-type feeder. The material 15 is fed into the equipment through the feed port 31 and gradually accumulates on the material support plate 4. When the material 15 accumulates to the material distribution port 32, due to the action of gravity, the material 15 spreads out on the material support plate 4 at the angle of repose of the material 15. The spreading area of the material 15 is smaller than that of the material support plate 4, and the material 15 can be statically placed on the material support plate 4. As the material 15 continues to increase, the height of the material layer continuously rises until it reaches the height that can achieve the air sealing effect. Record the data of the weight sensor 13 at this time as the starting basis for the push plate mechanism to control the reciprocating movement of the push plate assembly 5.

[0031] After the push plate mechanism is started, first control the push plate assembly 5 to move forward for half a stroke, that is, the push plate assembly moves forward for half a stroke. The forward-moving push plate assembly 5 pushes the material 15 in front of the push plate 52 away from the material support plate 4, and the space behind the push plate assembly 5 is filled by the falling material 15 from above; then, the push plate mechanism controls the push plate assembly to move backward for one stroke. The backward-moving push plate assembly 5 pushes the material 15 behind the push plate 52 away from the material support plate 4. At this time, the space in front of the push plate assembly is filled by the falling material 15 from above; then, the push plate mechanism controls the push plate assembly 5 to perform one forward stroke again. The forward-moving push plate assembly pushes the material 15 in front of the push plate 52 away from the material support plate 4, and the space behind the push plate assembly 5 is filled by the falling material 15 from above; and so on, running continuously.

[0032] Due to the change of process operation, when the feeding amount changes, the balance between the feeding amount and the discharging amount can be achieved by adjusting the pushing frequency: when the value of the weight sensor 13 increases to a certain upper limit value, the throughput is increased by increasing the pushing frequency to maintain the value of the weight sensor 13 stable within a certain range; when the weight sensor 13 decreases to a certain value, the throughput is reduced by reducing the pushing frequency to maintain the value of the weight sensor 13 stable within a certain range.

[0033] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, the other parts not specifically described belong to the prior art or common general knowledge. Without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A push-type feeder, characterized in that, it includes a plurality of struts (1), a first housing (2) is fixed on the upper side of the struts (1), a second housing (3) is fixed on the upper side of the first housing (2), a feed inlet (31) is provided at the upper end of the second housing (3), and its lower end extends into the first housing (2). A plurality of material distribution ports (32) are provided at the lower end of the second housing (3). A material support plate (4) is fixed inside the first housing (2). A push plate assembly (5) is provided between the material support plate (4) and the material distribution ports (32). The push plate assembly (5) includes a plurality of groups of side plates (51) arranged at intervals in pairs. A push plate (52) is fixed between the middle parts of each group of side plates (51). The upper ends of each group of side plates (51) are respectively arranged below both sides of a material distribution port (32). The upper end of the push plate (52) is arranged below the material distribution port (32), so that the material (15) falls from the material distribution port (32) into the area between the side plates (51) on both sides of the push plate and the material support plate (4) and accumulates. One side of the push plate assembly (5) is connected with a pushing mechanism, and the pushing mechanism is used to push the push plate assembly (5) to move back and forth in the first housing (2). When the push plate (52) moves back and forth, the material (15) can be pushed out from the front and back sides of the material support plate (4). An outlet (6) is respectively provided on the first housing (2) below both sides of each group of side plates (51); Both ends of each group of side plates (51) are respectively fixedly connected with a connecting beam (53); A connecting seat (54) is provided in the middle of one of the connecting beams (53). The pushing mechanism includes a connecting rod (9) with one end hinged on the connecting seat (54). The other end of the connecting rod (9) passes through an avoidance hole on the first housing (2) and is arranged outside the first housing (2), and its other end is hinged with one end of an L-shaped push rod (10). A support rod (11) is fixed on the first housing (2). The L-shaped push rod (10) is hinged with the support rod (11). A soft seal is provided between the connecting rod (9) and the first housing (2).

2. The push-type feeder according to claim 1, characterized in that, support wheels (7) are provided on both sides of the push plate assembly (5), and wheel tracks are provided inside both sides of the first housing (2). The support wheels (7) are in rolling connection with the wheel tracks.

3. The push-type feeder according to claim 2, characterized in that, the support wheels (7) include a plurality of first support wheels (71) and second support wheels (72) arranged perpendicular to each other. First wheel tracks (81) and second wheel tracks (82) are provided inside the first housing (2) and are respectively matched with the first support wheels (71) and the second support wheels (72).

4. The push-type feeder according to claim 1, characterized in that, a limit stop block (12) is further fixed inside the first housing (2). The limit stop block (12) is arranged on the front and back sides of the push plate assembly (5). The limit stop block (12) is matched with the connecting beam (53) for limiting.

5. The push-type feeder according to claim 1, characterized in that, There are 4 said struts (1), and the 4 struts (1) are symmetrically arranged on the lower sides of both ends of the first housing (2).

6. The push-type blanking device according to claim 5, characterized in that a weight sensor (13) is provided on the lower side of the said strut (1) to control the operation of the pushing mechanism according to the value of the weight sensor (13).

7. The push-type blanking device according to claim 1, characterized in that angle steels (14) are bolted inside the first housing (2), and the material support plate (4) is fixed on the upper sides of the angle steels (14).

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