Discharging control device for hopper and feeding system

Abstract

The utility model discloses a discharging control device for a hopper and a feeding system, and belongs to the technical field of industrial discharging and feeding equipment. The discharging control device comprises a flashboard lifting assembly, a sliding way assembly and a DCS, the flashboard lifting assembly comprises an electric turbine worm lifter, a turbine worm lifter fixing base, a nut base and a flashboard, the electric turbine worm lifter comprises a motor and a lead screw, the lead screw is movably connected with the flashboard by being screwed into the nut base, and the motor is connected with the sliding way assembly. The motor is in signal connection with the DCS; the slide way assembly comprises a slide way movable flange, a slide way fixed flange and a slide way base plate. The feeding system further comprises a hopper and a belt conveyor, and the discharging control device is linked with the metering belt conveyor and the smelting furnace ore discharging quantity parameters, so that the material quantity control is more accurate, and the smelting furnace body runs more stably. After the discharging control device is installed, the material quantity can be automatically controlled, the safety risk of field operation is eliminated, and the labor intensity of operators is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial discharging and feeding equipment, and in particular relates to a discharging control device and a feeding system for a hopper. Background Art

[0002] In the process of metal smelting, the stability of the smelting furnace mainly depends on the control of the amount of material discharged, and accurate control is the key, so the amount of material control and accurate measurement are very important. At present, the amount of material is mostly controlled by bolting the baffle and adjusting it manually. The main control personnel notify the on-site personnel to make adjustments, and the operation must be carried out without stopping the equipment. The adjustment frequency is high and the number of hoppers is large, which makes the labor intensity of the staff high, there are safety hazards and the adjustment is not accurate enough. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model provides a discharging control device and a feeding system for a hopper. The utility model arranges a discharging control device at the discharging end of the hopper. After the material is lifted into the hopper, it falls onto a receiving belt conveyor. The belt rotates to carry the material out of the hopper and falls into a metering belt conveyor for precise metering. The measured material is then transported by the feeding belt conveyor to a smelting furnace for smelting. At the same time, the discharging control device and the metering belt conveyor are controlled by a DCS system, and finally automatic precise control and metering of the material feeding into the smelting furnace can be realized.

[0004] In the first aspect, the utility model provides a discharge control device for a hopper, comprising a gate lifting assembly, a slide assembly and a DCS system, the gate lifting assembly comprising an electric worm gear lifter, a worm gear lifter fixing seat, a nut seat and a gate, the worm gear lifter fixing seat is fixedly connected to the part of the hopper close to the feed port, the electric worm gear lifter is detachably connected to the worm gear lifter fixing seat, the electric worm gear lifter comprises a motor and a screw, the nut seat is detachably connected to one end of the gate, the screw is movably connected to the gate by screwing into the nut seat, and the motor is connected to the DCS system signal; the slide assembly comprises a slide movable flange, a slide fixed flange, and a slide pad, the slide movable flange, the slide pad, and the slide fixed flange are detachably connected in sequence, and the slide fixed flange is fixed to the discharge port part of the hopper. Among them, the speed ratio and tonnage of the electric worm gear lifter can be adjusted according to the working conditions. Preferably, the speed ratio is 24:1 and the tonnage is 2.5 tons.

[0005] Furthermore, the slide assembly includes two slide movable flanges, a slide fixed flange and two slide pads, wherein the slide fixed flange is an inverted U-shaped structure; the two slide movable flanges are arranged parallel to each other and are detachably connected to the slide fixed flanges; the two slide pads are arranged parallel to each other and are detachably connected between the slide fixed flange and the slide movable flange.

[0006] Furthermore, the screw of the electric worm gear lifter is a trapezoidal buckle made of steel, and the nut seat is a trapezoidal buckle made of steel. Preferably, the steel has a carbon content not less than 45# steel.

[0007] Furthermore, the length of the nut seat is not less than 100 mm, and the wall thickness of the nut seat is not less than 10 mm.

[0008] Furthermore, the gate plate is made of steel, the gate plate thickness is not less than 16 mm, and the gate plate shape is a square plate with a circular arc at the bottom corner. Preferably, the steel is Q235B steel.

[0009] Furthermore, the detachable connection is a bolt connection.

[0010] Furthermore, the motor of the electric worm gear lifter is a servo motor, and the upper and lower travel limits of the gate plate can be set according to working conditions, and a limit alarm module can be further provided.

[0011] Furthermore, the screw of the electric worm gear lifter is parallel to the gate plate, and the parallelism error is ≤1mm. The total length of the screw of the electric worm gear lifter is determined according to the stroke of the gate plate. After the gate plate is completely dropped, the length of the screw exposed outside the nut seat is 10-20mm.

[0012] On the second aspect, the utility model also provides a feeding system including the above-mentioned discharge control device, including any one of the above-mentioned discharge control devices for the hopper, the hopper, a material receiving belt conveyor, a metering belt conveyor, and a feeding belt conveyor, wherein the material receiving belt conveyor is located below the discharge control device for the hopper, the material receiving belt conveyor is located below the metering belt conveyor, and the feeding belt conveyor is located below the metering belt conveyor.

[0013] Furthermore, the metering belt conveyor is connected to a DCS system signal.

[0014] Compared with the prior art, the beneficial technical effects of the utility model are:

[0015] (1) The utility model discloses a discharge control device for a hopper, which changes the current method of mostly bolt-fixed baffles combined with manual adjustment. After the discharge control device is installed, automatic control is realized, eliminating the safety risks of on-site operation, reducing the labor intensity of operators, and making the material quantity adjustment more accurate.

[0016] (2) The utility model discloses a feeding system, in which the electric worm gear lifter motor in the discharge control device is a servo motor, and the signal is connected to the DCS system in the main control room, and is linked with the metering belt conveyor and the ore quantity parameters under the smelting furnace, so that the control is more precise, thereby making the furnace body run more stably, reducing the smelting temperature fluctuation, and increasing the life of the smelting furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of the feeding system disclosed in the utility model;

[0018] Figure 2 It is a side view of the discharge control device for the hopper disclosed in the utility model;

[0019] Figure 3 It is a top view of the discharge control device for the hopper disclosed in the utility model;

[0020] Figure 4 A detailed diagram of a slideway assembly in a discharge control device for a hopper disclosed in the utility model;

[0021] Figure 5 The utility model discloses a detailed diagram of a gate plate in a discharge control device for a hopper.

[0022] Among them, 1 is a hopper, 2 is an electric worm gear lifter, 3 is a worm gear lifter fixing seat, 4 is a nut seat, 5 is a gate, 6 is a slideway movable flange, 7 is a slideway fixing flange, 8 is a bolt, 9 is a slideway pad, 10 is a hopper discharge port, 11 is a receiving belt conveyor, 12 is a metering belt conveyor, 13 is a feeding belt conveyor, 14 is a motor, 15 is a screw, 16 is a gate lift assembly, and 17 is a slideway assembly. DETAILED DESCRIPTION

[0023] The utility model is described in detail below in conjunction with the accompanying drawings and specific implementation methods. The embodiments shown below do not limit the content of the utility model described in the claims. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] Reference Figure 1-5A discharge control device for a hopper includes a gate lifting assembly 16, a slide assembly 17 and a DCS system, wherein the gate lifting assembly 16 includes an electric worm gear lifter 2, a worm gear lifter fixing seat 3, a nut seat 4 and a gate 5, and the slide assembly 17 includes a slideway movable flange 6, a slideway fixing flange 7 and a slideway pad 9, wherein the slideway movable flange 6, the slideway pad 9 and the slideway fixing flange 7 are fixed together by bolts 8 and welded and fixedly installed at the discharge port 10 of the hopper; a nut seat 4 is installed on the center of the upper end of the gate 5 and fixed by bolts 8; the electric worm gear lifter 2 is installed and fixed on the worm gear lifter fixing seat 3, and the worm gear lifter fixing seat 3 is welded to the part of the hopper 1 near the feed port, and the electric worm gear lifter 2 includes a motor 14 and a screw 15, and the screw 15 can be screwed into the nut seat 4 on the gate 5 to drive the gate 5 to move up and down in the slide assembly 17. For the convenience of installation, on one side of the horizontal direction close to the slideway assembly 17 (i.e. Figure 1 The edge of the discharge port 10 of the hopper exceeds the edge of the feed port of the hopper 1. The discharge port can be integrated with the hopper or can be a separate component installed for easy installation.

[0025] In one embodiment of the utility model, the motor 14 of the electric worm gear lifter 2 is a servo motor, and the signal is connected to the DCS system in the main control room, and is linked with the metering belt conveyor 12 and the ore quantity parameters under the smelting furnace, so that the control is more precise, the furnace operation is more stable, the smelting temperature fluctuation is reduced, and the life of the smelting furnace is increased.

[0026] When the gate plate 5 moves to between the slide movable flange 6 and the slide fixed flange 7, gaps are left between the gate plate 5 and the slide pad 9, and between the slide movable flange 6 and the slide fixed flange 7. In one embodiment of the utility model, a gap of 0.5-1 mm is left between the two sides of the gate plate 5 (along the plate width direction) and the slide pad 9, and a gap of 0.5-1 mm is left between the front and back sides of the gate plate 5 and the slide movable flange 6 and the slide fixed flange 7. The gap can be adjusted by adding an adjustment pad between the slide movable flange 6, the slide pad 9 and the slide fixed flange 7, or by changing the thickness of the slide pad 9.

[0027] In one embodiment of the utility model, the total length of the screw 15 of the electric worm gear lifter 2 is determined according to the stroke of the gate plate 5. After the gate plate 5 is completely dropped to close the discharge port 10 of the hopper, the length of the screw exposed on the nut seat 4 is 10-20 mm.

[0028] In one embodiment of the utility model, the screw 15 of the electric worm gear lifter 2 is installed on the same center line and parallel to the gate plate 5, and the parallelism error is ≤1mm.

[0029] like Figure 1 As shown, in the feeding system disclosed in the utility model, the material is lifted to the top of the hopper 1 and added into the hopper 1. The lower end of the hopper 1 is open and the material is received by the receiving belt conveyor 11. A gate lifting assembly 16 and a slide assembly 17 are arranged on the hopper 1. The receiving belt conveyor 11 rotates to bring the material out of the hopper 1 and drops it onto the metering belt conveyor 12 for precise metering. The measured material is then transported to the smelting furnace by the feeding belt conveyor 13 for smelting. The signal of the motor 14 in the electric worm gear lifter 2 is connected to the DCS system of the main control room, and is interlocked with the metering belt conveyor 12 and the ore quantity parameters under the smelting furnace. When the smelting ore quantity needs to be adjusted, the control room sets the parameters to be adjusted. After receiving the signal, the motor 14 in the electric worm gear lifter 2 automatically rotates to drive the gate 5 to rise or fall. When the set value of the metering belt conveyor 12 is reached, the electric worm gear lifter 2 stops moving, and the automatic adjustment of the smelting ore quantity is completed.

[0030] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A discharge control device for a hopper, characterized in that: It includes a gate lifting assembly, a slide assembly and a DCS system. The gate lifting assembly includes an electric worm gear lifter, a worm gear lifter fixing seat, a nut seat and a gate. The worm gear lifter fixing seat is fixedly connected to the part of the hopper close to the feed port. The electric worm gear lifter is detachably connected to the worm gear lifter fixing seat. The electric worm gear lifter includes a motor and a screw. The nut seat is detachably connected to one end of the gate. The screw is movably connected to the gate by screwing into the nut seat. The motor is connected to the DCS system signal. The slide assembly includes a slide movable flange, a slide fixed flange and a slide pad. The slide movable flange, the slide pad and the slide fixed flange are detachably connected in sequence, and the slide fixed flange is fixed to the discharge port of the hopper.

2. A discharge control device for a hopper according to claim 1, characterized in that: The slide assembly includes two slide movable flanges, a slide fixed flange and two slide pads, wherein the slide fixed flange is an inverted U-shaped structure; the two slide movable flanges are arranged parallel to each other and are detachably connected to the slide fixed flanges; the two slide pads are arranged parallel to each other and are detachably connected between the slide fixed flange and the slide movable flange.

3. A discharge control device for a hopper according to claim 1, characterized in that: The screw rod of the electric worm gear lifter is a trapezoidal buckle made of steel; the nut seat is a trapezoidal buckle made of steel.

4. A discharge control device for a hopper according to claim 1, characterized in that: The length of the nut seat is not less than 100 mm, and the wall thickness of the nut seat is not less than 10 mm.

5. A discharge control device for a hopper according to claim 1, characterized in that: The gate plate is made of steel, the thickness of the gate plate is not less than 16 mm, and the shape of the gate plate is a square plate with an arc-shaped top corner at the lower end.

6. A discharge control device for a hopper according to claim 1, characterized in that: The detachable connection is a bolt connection.

7. A discharge control device for a hopper according to claim 1, characterized in that: The motor of the electric worm gear lifter is a servo motor.

8. A discharge control device for a hopper according to claim 1, characterized in that: The lead screw of the electric worm gear lifter is parallel to the gate plate, and the parallelism error is ≤1mm.

9. A feeding system, characterized in that: It comprises the discharging control device for a hopper, a hopper, a material receiving belt conveyor, a metering belt conveyor and a feeding belt conveyor as described in any one of claims 1 to 8, wherein the discharging control device for the hopper is fixed on the hopper, the material receiving belt conveyor is below the hopper, the metering belt conveyor is below the material receiving belt conveyor, and the feeding belt conveyor is below the metering belt conveyor.

10. The feeding system according to claim 9, characterized in that: The metering belt conveyor is connected with the DCS system signal.

Images