[0051] The specific embodiments of the present invention will be further described below in conjunction with the drawings:
[0052] Such as figure 1 As shown, the double hopper mounting device with a lifting sleeve sealed on both sides of the present invention includes an upper hopper 5, a lower hopper 12, a hopper bracket 6, a trolley 4, a water seal cover 14 and a dust collection pipe 23; Including the discharge pipe 8, the lifting sleeve 9, the upper sealing mechanism 10, the lower sealing mechanism 41 and the guiding mechanism 11; the loading platform 22 on the top of the dry quenching furnace is provided with a rail 17, and the rail 17 is provided with two mutually connected Trolley 4, one of the trolleys 4 is at the loading level I above the furnace mouth, and the other trolley 4 is located at the inspection position II on one side; the configuration on the two trolleys 4 is the same, as two independent The two charging units have one work and one preparation; in each loading unit, the upper hopper 5 and the lower hopper 12 are fixed on the trolley 4 through the hopper bracket 6, and the bottom of the upper hopper 5 is provided with a discharge pipe 8 And the lifting sleeve 9, the lifting sleeve 9 is located in the discharge pipe 8, the lower part of the lifting sleeve 9 can extend into the lower hopper 12 under the drive of the corresponding actuator; the top of the discharge pipe 8 and the top of the lifting sleeve 9 An upper sealing mechanism 10 is provided between the top of the lifting sleeve 9 and the upper hopper 5, a lower sealing mechanism is provided between the bottom of the discharging pipe 8 and the bottom of the lifting sleeve 9, and between the bottom of the lifting sleeve 9 and the lower hopper 12 41. The upper and lower outer sides of the discharging pipe 8 are respectively provided with a guide mechanism 11 so that the lifting sleeve 9 can only move in the vertical direction; the sealing body 29 and the bell body 26 of the material bell 13 are respectively located in the upper hopper 5 and the lower hopper 12 Inside, the upper and lower edges of the lifting sleeve 9 are respectively provided with sealing surfaces that cooperate with the corresponding sealing surfaces 42 on the upper and lower sides of the material bell 13 to achieve double sealing; the bottom of the lower hopper 12 is connected to the water seal cover 14 through a soft connection, The height of the water seal cover 14 is adjusted by the water seal cover lifting mechanism 15; the upper hopper 5 is provided with a level gauge 7, which is interlocked with the actuator of the lifting sleeve 9 through the control system; corresponding to the top of the furnace mouth A dust collecting hood 1 is provided. The bottom of the dust collecting hood 1 is connected with the upper hopper 5 of the corresponding charging unit through a soft connecting sleeve 3. The top side of the dust collecting hood 1 is provided with a chain bucket conveyor discharge port and dust collecting hood. The other side of the top of 1 is connected to the dust collecting duct 23.
[0053] Such as image 3 As shown, a sealing curtain 25 is provided at the discharge port of the chain bucket conveyor, and the sealing curtain 25 is made of heat-resistant rubber or fire-resistant ceramic fiber cloth.
[0054] The upper and lower ends of the soft connecting sleeve 3 are respectively compressed on the outer wall of the dust collecting hood 1, the upper hopper 5 through a full circle of flat steel. The entire circle of flat steel is provided with only one opening, and the connection is adjusted through the opening The degree of tightness.
[0055] The inner walls of the upper hopper 5, the discharge pipe 8 and the lower hopper 12 are lined with wear-resistant and heat-insulating materials, and the effective volume of the upper hopper 5 is greater than the total amount of materials conveyed by the chain hopper conveyor 24 in one operation cycle.
[0056] The lifting sleeve 9 is made of wear-resistant and high-temperature resistant metal. The upper and lower sides of the lifting sleeve 9 are provided with sealing surfaces 42 in the circumferential direction.
[0057] Such as Figure 5 As shown, the upper sealing mechanism 10 is composed of a packing cylinder 30, an inner ring packing and an outer ring packing 31, an inner ring packing support plate 32 and an outer ring sealing gland 34; the packing cylinder 30 is fixed at the bottom of the upper hopper 5 and placed The inside of the material pipe 8; the lifting sleeve 9 passes through the annular space between the packing tube 30 and the discharge tube 8 and separates the packing tube 30 into an inner ring space and an outer ring space, an inner ring space and an outer ring space Inside are respectively filled with inner ring packing and outer ring packing 31; the top of the inner ring packing is pressed against the outer wall of the upper hopper 5, and the inner ring packing support plate 32 is arranged at the bottom. The inner ring packing is compressed and packed on the inner wall of the lifting sleeve 9 and The outer wall of the upper hopper 5 is sealed between the two; the bottom of the outer ring packing is provided with an outer ring sealing gland 34, and the top is pressed against the outer wall of the upper hopper 5, and the outer ring packing is compressed and stuffed on the outer wall of the lifting sleeve 9 The sealing between the lifting sleeve 9 and the upper hopper 5 is realized between the inner wall of the filling drum 30 and
[0058] The lower sealing mechanism 41 is composed of a packing cylinder 30, an inner ring packing and an outer ring packing 31, an inner ring packing support plate 32, an inner ring packing plate 33 and an outer ring sealing gland 34; the packing cylinder 30 is fixed to the lower hopper 12 The top, the outside of the discharge tube 8; the lifting sleeve 9 passes through the annular space between the packing tube 30 and the discharge tube 8 and separates the packing tube 30 into an inner ring space and an outer ring space. The inner ring space, The outer ring space is respectively filled with inner ring packing and outer ring packing 31; the bottom of the inner ring packing is provided with an inner ring packing support plate 32, and the top is provided with an inner ring packing press plate 33. After the inner ring packing is compressed, the inner wall of the lifting sleeve 9 and The outer wall of the discharge pipe 8 is sealed between the two; the bottom of the outer ring packing is supported by the top surface of the lower hopper 12, and the top is provided with an outer ring sealing gland 34. After the outer ring packing is compressed, the outer wall of the lifting sleeve 9 and The inner wall of the stuffing cylinder 30 realizes the sealing between the lifting sleeve 9 and the lower hopper 12.
[0059] Such as Figure 4 As shown, the material bell 13 is composed of a bell body 26, a sealing body 29, a hanging column 27 and a beam 28; the bell body 26 is located in the lower hopper 12, and its outer side is provided with a lower edge of the lifting sleeve 9 The sealing surface 42; the in-line beam 28 is installed in the upper hopper 5, and the bell body 26 is suspended under the in-line beam 28 through a hanging column 27; the bottom of the in-line beam 28 is provided with a sealing body 29, and the outer side of the sealing body 29 is provided The sealing surface 42 matched with the upper edge of the lifting sleeve 9; the whole material bell 13 is lined with wear-resistant material; the discharge pipe 8 is fixed on the hanging column 27 through the internal mounting bracket.
[0060] Such as Image 6 As shown, the water seal cover lifting mechanism 15 is composed of a water seal cover guide tube 35, a chain 36 and a pin 37; one end of the chain 36 is fixed on the trolley 4, and the other end is connected to a pin 37 fixed on the water seal cover 14. Connected, the water seal cover guide tube 35 is provided with multiple through holes in the height direction, and the height of the water seal cover 14 can be manually adjusted by inserting the pins 37 into the through holes of different heights on the water seal cover guide tube 35.
[0061] So Figure 7 As shown, the trolley 4 is provided with a manual shifting mechanism 16. The manual shifting mechanism 16 is composed of a transmission mechanism 38 and a manual knob 39. The power input end of the transmission mechanism 38 is connected to the manual knob 39, and the power output end is connected to the manual knob 39. The wheel axles of the trolley 4 are connected, and the two-way movement of the trolley 4 along the track 17 is realized by rotating the manual knob 39 clockwise or counterclockwise.
[0062] The working method of the double hopper loading device with the lifting sleeve sealed on both sides includes:
[0063] In the double-hopper loading device, one of the trolleys 4 is located at the loading position I in the center of the furnace mouth, and the other trolley 4 is located at the inspection position II on one side; the two trolleys 4 respectively pass through the Wheel stop 18, car stop 19 and trolley stop seat 20 are locked in position; the initial positions of the water seal cover 14 in the two charging units are all in the raised state, and the loading process only adjusts the charging at the loading position I Unit, the specific adjustment steps are as follows:
[0064] 1) By adjusting the lifting mechanism 15 of the water seal cover, the corresponding water seal cover 14 is dropped into the water seal groove 40 and a sufficient water seal height is maintained;
[0065] 2) Connect the dust collecting hood 1 and the upper hopper 5 through the soft connecting sleeve 3 to ensure that dust does not escape from here;
[0066] 3) In the standby state, that is, when no material is loaded into the dry quenching furnace, the sealing surface 42 at the lower edge of the lifting sleeve 9 is closely attached to the corresponding sealing surface 42 on the outside of the bell body 26 of the material bell 13, plus the upper hopper 5. The material seal formed by the material pipe 8 and the columnar material in the lower hopper 12 realizes the isolation of the dry quenching furnace pre-storage room from the atmosphere;
[0067] 4) When the bucket chain conveyor 24 starts to start, the dust removal fan of the dust removal ground station connected to the dust collection pipe 23 starts at the same time and runs at high speed, ready to collect dust through the dust collection pipe 23; the material is discharged by the bucket chain conveyor Enter the dust collecting hood 1 and fall into the upper hopper 5. Due to the cooperative sealing effect of the lifting sleeve 9 and the material bell 13, the materials gradually accumulate in the upper hopper 5, when the material level in the upper hopper 5 reaches the level gauge 7 At this time, the actuator of the lifting sleeve 9 is activated, and the lifting sleeve 9 is lifted until the sealing surface 42 of the upper edge of the lifting sleeve 9 closely fits with the sealing surface 42 of the upper sealing body 29 of the material bell 13 to achieve upper sealing, and the lower edge of the lifting sleeve 9 The lower seal formed with the sealing surface 42 of the bell body 26 of the material bell 13 opens, and the materials in the lifting sleeve 9 and the discharge pipe 8 begin to enter the lower hopper 12, and enter the dry quenching furnace after being distributed by the material bell 13;
[0068] 5) Perform on-site calibration of the time when the materials in the lifting sleeve 9 and the discharge tube 8 are all discharged after the lower seal is opened, and use this time as the delay time set by the actuator of the lifting sleeve 9 again, that is, all materials After putting it down, the actuator of the lifting sleeve 9 moves again to lower the lifting sleeve 9 so that the sealing surface 42 of the lower edge of the lifting sleeve 9 and the sealing surface 42 on the bell body 26 are closely attached again, and the upper hopper 5 The material inside enters the discharge pipe 8 and the lifting sleeve 9 again; the above actions are repeated;
[0069] 6) When the upper hopper 5 is discharged, the height of the lifting sleeve 9 is controlled by adjusting the stroke of the actuator of the lifting sleeve 9 so that the discharge speed of the upper hopper 5 is slower than the feeding speed of the chain hopper conveyor 24; In this case, the material level in the upper hopper 5 continues to rise until the feeding of the chain conveyor 24 ends, at which time the dust removal fan of the ground dust removal station starts to operate at low speed;
[0070] 7) After the feeding of the chain bucket conveyor 24 is completed, as the materials in the upper hopper 5 continue to be intermittently loaded into the dry quenching furnace through the lifting sleeve 9 and the discharge pipe 8, the material level in the upper hopper 5 begins to slowly drop. When the material level drops to the level gauge 7, the actuator of the lifting sleeve 9 moves again to realize the lower part of the lifting sleeve 9; at the same time, the dust removal fan of the dust removal ground station stops running, thus completing a loading cycle;
[0071] When the loading unit in the loading position I needs to be overhauled, first remove the soft connecting sleeve 3 fastened to the top of the upper hopper 5, and then remove the wheel block 18, the car block 19 and the trolley stop seat 20, and pass the water The cover lifting mechanism 15 raises the water sealing cover 14; then the trolley 4 at the loading position I is moved to the inspection position II on one side by the manual shifting mechanism 16, and the other standby trolley 4 moves simultaneously To the loading position I, adjust the moving unit entering the loading position I according to the above steps 1)-7) to realize a new round of loading work cycle.
[0072] In the present invention, the rail 17 is supported by the rail beam 21, and the trolleys 4 of the two loading units can be connected by pins. The dust collecting hood 1 is fixed on the loading platform 22 through the support frame 2, and the top of the dust collecting hood 1 is connected to the dust removal ground station through the dust collecting pipe 23. The actuator of the lifting sleeve 9 is fixed by a support welded on the outer wall of the upper hopper 5. The actuator can use air cylinders, hydraulic cylinders, electric cylinders, electro-hydraulic cylinders or motors, or the above equipment and mechanical connecting rods, reducers, gears Or racks and other mechanical devices, and the actuator is provided with a positioner for accurately adjusting the lifting height of the lifting sleeve 9.
