Feeding device of double-hearth shaft kiln

Abstract

The utility model discloses a double-hearth shaft kiln feeding device which comprises a bottom frame, and a conveying belt is installed on the bottom frame and used for conveying materials. A sealing cover with an opening in one end is fixed to the position, located above the conveying belt, of the bottom frame, and a feeding device is installed at one end of the sealing cover and used for feeding materials to the inner side of the sealing cover; a sealing mechanism is mounted on the sealing cover and used for preventing flue gas from flowing back to the feeding device after feeding is performed on the inner side of the sealing cover; the feeding device of the double-hearth shaft kiln relates to the technical field of feeding devices, and solves the problems that although an existing feeding device of the double-hearth shaft kiln is sealed in the whole process, materials are fed through a feeding chute, the materials are not fed through the feeding chute, and the feeding efficiency of the feeding device of the double-hearth shaft kiln is greatly improved. Materials are easy to adhere to the inner wall of the chute to cause blockage, and the feeding amount is not easy to control.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding devices, in particular to a double-chamber vertical kiln feeding device. Background Art

[0002] The current feeding method for double-chamber vertical kilns is to connect a reversible belt under the kiln top silo to feed materials to the two kiln chambers through a distributor.

[0003] Commonly used reversible belt conveyors are generally open or semi-open, with poor sealing conditions, high dust and high equipment loss rate.

[0004] For example, patent CN215638710U discloses a double-chamber vertical kiln feeding device, which includes a kiln top silo, a dividing valve, a sealing valve, a feeding chute, a collecting hopper and a bell-type distributor. The double-chamber vertical kiln feeding device is provided with a collecting hopper to buffer the material and airflow, which can isolate the airflow and realize real-time feeding of any kiln chamber; at the same time, the material is fully sealed to avoid dust and realize uniform distribution in the kiln chamber.

[0005] The device has the following defects and shortcomings during its specific implementation: although the device is fully sealed, the material is fed through the feed chute, the material easily adheres to the inner wall of the chute and causes blockage, and the feed amount is difficult to control. For this reason, we propose a double-chamber vertical kiln feeding device. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a double-bore vertical kiln feeding device, which solves the problems that although the existing double-bore vertical kiln feeding device is fully sealed, materials are fed through a feeding chute, the materials are easily adhered to the inner wall of the chute and cause blockage, and the feed amount is difficult to control.

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a double-chamber vertical kiln feeding device, comprising a base frame, on which a conveyor belt is installed for material transportation;

[0008] A sealing cover with an opening at one end is fixed on the base frame and above the conveyor belt, and a feeding device is installed at one end of the sealing cover for feeding materials into the inner side of the sealing cover;

[0009] The sealing cover is provided with a sealing mechanism for preventing the flue gas after feeding into the sealing cover from flowing back to the feeding device;

[0010] The sealing cover is provided with a recovery mechanism for recovering smoke when the material is conveyed on the conveyor belt.

[0011] Preferably, both ends of the conveyor belt are internally connected to a transmission pulley rotatably mounted on a base frame via a bearing, the transmission pulley is mounted on the output end of an external motor and driven to rotate by the external motor, and the external motor is fixed on the base frame.

[0012] Preferably, the feeding device comprises a feeding hopper with an opening on the top fixed on the base frame, and the bottom end of the feeding hopper is connected to a material guide pipe extending to the inside of the sealing cover.

[0013] Preferably, the sealing mechanism comprises a cylinder fixed above the sealing cover, a baffle is installed at the bottom end of the cylinder, a through groove is formed on the sealing cover, and the baffle is movably engaged in the through groove.

[0014] Preferably, the recovery mechanism includes a dust box fixed on the top of the sealing cover and an air pump, a plurality of chimneys connected to the interior of the sealing cover are fixed on both sides of the dust box, the air inlet of the air pump is connected to the interior of the dust box through a pipeline, and the air outlet is fixedly connected to an air outlet pipe, one end of the air outlet pipe is connected to an exhaust pipe fixed on the dust box, and a plurality of dust filter cloths are fixed inside the dust box.

[0015] Preferably, an inspection door is installed on the top of the dust box by bolts, and the dust filter cloth is fixed inside the dust box by bolts.

[0016] Beneficial Effects

[0017] The utility model provides a double-chamber vertical kiln feeding device. Compared with the prior art, it has the following beneficial effects:

[0018] 1. A double-bore vertical kiln feeding device, a conveyor belt is arranged on a base frame, a sealing cover is installed on the conveyor belt, one end of the conveyor belt and the sealing cover is extended to the feeding port of the double-bore vertical kiln, a feeding device is installed on the base frame, and a sealing mechanism is installed on the conveyor belt. Materials are added through a feeding hopper, and the materials enter the inner side of the sealing cover through a material guide pipe and are transported to the double-bore vertical kiln through the conveyor belt. The sealing cover forms a relatively closed space when the materials are transported in the conveyor belt, and the materials are fully sealed to avoid dust. The conveying method of the conveyor belt does not cause material blockage during feeding, and the feeding amount is easy to control.

[0019] 2. A double-chamber vertical kiln feeding device, after adding materials through a feeding hopper and entering the inner side of a sealing cover through a material guide pipe, a start cylinder drives a baffle plate to move downward and clamps the baffle plate in a through groove, and closes one end of the inner side of the sealing cover through the baffle plate, so that the airflow can be quickly blocked after the materials are added into the inner side of the sealing cover, thereby preventing the airflow from flowing back into the feeding hopper through the material guide pipe, so that the sealing effect inside the sealing cover is good, and dust can be prevented from flowing back into the feeding hopper. In addition, a recovery mechanism is installed on the sealing cover, and the airflow generated when the materials are transported on the surface of the conveyor belt inside the sealing cover enters the dust collecting box through the chimney, and after the airflow is filtered by the dust filter mesh cloth in the dust collecting box, the airflow is discharged outward from the air outlet pipe and the exhaust pipe through an air pump, and the materials can be filtered and recovered through the dust filter mesh cloth in the dust collecting box, and at the same time, the airflow when the materials are transported inside the sealing cover is eliminated, so as to avoid the problem of large dust caused by large airflow during feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from the first viewing angle;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a second viewing angle;

[0022] Figure 3 This is a schematic diagram of the sealing mechanism structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the structure of the recycling mechanism of the utility model.

[0024] In the figure: 1. base frame; 2. conveyor belt; 3. sealing cover; 4. feeding device; 41. feeding hopper; 42. material guide pipe; 5. sealing mechanism; 51. cylinder; 52. baffle; 53. through groove; 6. recovery mechanism; 61. dust collecting box; 611. inspection door; 62. chimney; 63. vacuum pump; 64. exhaust pipe; 65. exhaust pipe; 66. dust filter cloth. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4 , the utility model provides two technical solutions:

[0027] Embodiment 1:

[0028] A double-chamber vertical kiln feeding device comprises a base frame 1, on which a conveyor belt 2 is installed for material conveying;

[0029] A sealing cover 3 with an opening at one end is fixed on the base frame 1 and above the conveyor belt 2, and a feeding device 4 is installed at one end of the sealing cover 3 for feeding materials into the inner side of the sealing cover 3;

[0030] A sealing mechanism 5 is installed on the sealing cover 3 to prevent the flue gas after feeding inside the sealing cover 3 from flowing back to the feeding device 4;

[0031] A recovery mechanism 6 is installed on the sealing cover 3 for recovering smoke when the material is transported on the conveyor belt 2 .

[0032] Embodiment 2:

[0033] The main difference from the first embodiment is:

[0034] A double-chamber vertical kiln feeding device, the two ends of the conveyor belt 2 are internally connected with a transmission pulley installed on the base frame 1 through a bearing, the transmission pulley is installed at the output end of the external motor and driven to rotate by the external motor, the external motor is fixed on the base frame 1, the transmission pulley rotates to drive the conveyor belt 2 to rotate, and the material is transported by the conveyor belt 2; the feeding device 4 includes a feeding hopper 41 with a top opening fixed on the base frame 1, the bottom end of the feeding hopper 41 is connected to a guide pipe 42 extending to the inside of the sealing cover 3, the material is added through the feeding hopper 41, the material enters the inner side of the sealing cover 3 through the guide pipe 42, and is conveyed The belt 2 is transported to the double-chamber vertical kiln; the sealing mechanism 5 includes a cylinder 51 fixed above the sealing cover 3, a baffle 52 is installed at the bottom end of the cylinder 51, a through slot 53 is opened on the sealing cover 3, and the baffle 52 is movably connected to the inside of the through slot 53. After the material is added through the feeding hopper 41 and enters the inner side of the sealing cover 3 through the guide pipe 42, the cylinder 51 is started to drive the baffle 52 to move downward and connect the baffle 52 to the through slot 53, and the inner end of the sealing cover 3 is closed by the baffle 52. After the material is added into the inner side of the sealing cover 3, the airflow can be quickly blocked, thereby preventing the airflow from flowing back to the feeding hopper 41 through the guide pipe 42. The sealing effect of the inside of the sealing cover 3 is improved, and at the same time, dust is prevented from flowing back into the feeding hopper 41; the recovery mechanism 6 includes a dust collecting box 61 and an air pump 63 fixed on the top of the sealing cover 3, and multiple chimneys 62 connected to the inside of the sealing cover 3 are fixed on both sides of the dust collecting box 61. The air inlet of the air pump 63 is connected to the inside of the dust collecting box 61 through a pipeline, and the air outlet is fixedly connected to an air outlet pipe 64, and one end of the air outlet pipe 64 is connected to an exhaust pipe 65 fixed to the dust collecting box 61. Multiple dust filter meshes 66 are fixed inside the dust collecting box 61. The airflow generated when the material is transported on the surface of the conveyor belt 2 inside the sealing cover 3 enters through the chimney 62 Inside the dust box 61, after the airflow is filtered by the dust filter cloth 66 inside the dust box 61, the airflow is discharged outward from the air outlet pipe 64 and the exhaust pipe 65 through the vacuum pump 63. The material can be filtered and recovered through the dust filter cloth 66 inside the dust box 61, and at the same time, the airflow during material transportation inside the sealing cover 3 is eliminated, avoiding the problem of large dust caused by large airflow during feeding; an inspection door 611 is installed on the top of the dust box 61 by bolts, and the dust filter cloth 66 is fixed to the inside of the dust box 61 by bolts, so that the inspection door 611 is opened to collect the recycled materials in the dust box 61 and to maintain and replace the dust filter cloth 66.

[0035] When the double-bore vertical kiln feeding device is used, a conveyor belt 2 is arranged on the base frame 1, and a sealing cover 3 is installed on the conveyor belt 2. One end of the conveyor belt 2 and the sealing cover 3 are extended to the feeding port of the double-bore vertical kiln. A feeding device 4 is installed on the base frame 1, and a sealing mechanism 5 is installed on the conveyor belt 2. Materials are added through a feeding hopper 41, and the materials enter the inner side of the sealing cover 3 through a guide pipe 42, and are transported to the double-bore vertical kiln through the conveyor belt 2. The sealing cover 3 forms a relatively closed space when the materials are transported in the conveyor belt 2, and the materials are sealed throughout the process to avoid dust. The conveying method of the conveyor belt 2 does not cause material blockage during feeding, and the feeding amount is easy to control. In addition, after the utility model adds materials through the feeding hopper 41 and enters the inner side of the sealing cover 3 through the guide pipe 42, the cylinder 51 is started to drive the baffle 52 to move downward. It is clamped in the through groove 53 and one end of the inner side of the sealing cover 3 is closed by the baffle 52. After the material is added into the inner side of the sealing cover 3, the airflow can be quickly blocked, thereby preventing the airflow from flowing back into the feeding hopper 41 through the material guide pipe 42, so that the sealing effect inside the sealing cover 3 is good, and at the same time, dust is prevented from flowing back into the feeding hopper 41. In addition, a recovery mechanism 6 is installed on the sealing cover 3. The airflow generated when the material is transported on the surface of the conveyor belt 2 inside the sealing cover 3 enters the dust collecting box 61 through the chimney 62. After the airflow is filtered by the dust filter mesh 66 in the dust collecting box 61, the airflow is discharged outward from the air outlet pipe 64 and the exhaust pipe 65 through the vacuum pump 63. The material can be filtered and recovered through the dust filter mesh 66 in the dust collecting box 61. At the same time, the airflow when the material is transported inside the sealing cover 3 is eliminated, and the problem of large dust caused by large airflow during feeding is avoided.

[0036] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-chamber vertical kiln feeding device, comprising a base frame (1), characterized in that: A conveyor belt (2) is installed on the base frame (1) for conveying materials; A sealing cover (3) with an open end is fixed on the base frame (1) and located above the conveyor belt (2), and a feeding device (4) is installed at one end of the sealing cover (3) for feeding materials into the inner side of the sealing cover (3); The sealing cover (3) is provided with a sealing mechanism (5) for preventing the flue gas from flowing back to the feeding device (4) after the feeding inside the sealing cover (3); The sealing cover (3) is provided with a recovery mechanism (6) for recovering smoke when the material is transported on the conveyor belt (2).

2. A double-chamber shaft kiln feeding device according to claim 1, characterized in that: Both ends of the conveyor belt (2) are internally connected to a transmission pulley rotatably mounted on the base frame (1) via a bearing; the transmission pulley is mounted on the output end of an external motor and driven to rotate by the external motor; the external motor is fixed to the base frame (1).

3. A double-chamber shaft kiln feeding device according to claim 1, characterized in that: The feeding device (4) comprises a feeding hopper (41) with a top opening fixed on the base frame (1), and a material guide pipe (42) extending to the inside of the sealing cover (3) is connected to the bottom end of the feeding hopper (41).

4. A double-chamber shaft kiln feeding device according to claim 1, characterized in that: The sealing mechanism (5) comprises a cylinder (51) fixed above the sealing cover (3), a baffle (52) being installed at the bottom end of the cylinder (51), a through slot (53) being provided on the sealing cover (3), and the baffle (52) being movably engaged in the through slot (53).

5. A double-chamber shaft kiln feeding device according to claim 1, characterized in that: The recovery mechanism (6) comprises a dust box (61) fixed on the top of the sealing cover (3) and an air pump (63); a plurality of chimneys (62) connected to the interior of the sealing cover (3) are fixed on both sides of the dust box (61); an air inlet of the air pump (63) is connected to the interior of the dust box (61) through a pipeline; an air outlet is fixedly connected to an air outlet pipe (64); one end of the air outlet pipe (64) is connected to an exhaust pipe (65) fixed to the dust box (61); and a plurality of dust filter cloths (66) are fixed inside the dust box (61).

6. A double-chamber vertical kiln feeding device according to claim 5, characterized in that: An inspection door (611) is installed on the top of the dust collecting box (61) by means of bolts, and the dust filtering mesh cloth (66) is fixed inside the dust collecting box (61) by means of bolts.

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