WO2020134058A1

WO2020134058A1 - Transition box body for preventing powder from entering kiln

Info

Publication number: WO2020134058A1
Application number: PCT/CN2019/097670
Authority: WO
Inventors: 潘建环; 邓钢
Original assignee: 广东科达洁能股份有限公司
Priority date: 2018-12-26
Filing date: 2019-07-25
Publication date: 2020-07-02
Also published as: CN109737740A

Abstract

A transition box body for preventing powder from entering a kiln. The transition box body (2) is arranged in front of a front kilneye (8) of the kiln (4) and is connected to the front kilneye (8); the transition box body (2) comprises a box body main body (21) and a sealing door arranged on the box body main body (21); the box body main body (21) is of a cavity structure with openings at two ends; the two ends of the box body main body (21) are provided with a box body inlet (6) and a box body outlet (7) respectively; the box body outlet (7) is in butt joint with the front kilneye (8); the sealing door comprises an outer sealing door (1) and an inner sealing door (3); the outer sealing door (1) is used for opening and closing the box body inlet (6) by means of moving; and the inner sealing door (3) is arranged at the butt joint position of the tank body outlet (7) and the front kilneye (8) or a cavity opening between the box body inlet (6) and the box body outlet (7). The front kilneye (8) is closed by means of the outer sealing door (1) and the inner sealing door (3) at the two ends of the transition box body (2), and at least one of the outer sealing door (1) and the inner sealing door (3) is in a closed state. The transition box body (2) isolates the front kilneye (8) of the kiln (4) from the external environment, isolates external air, reduces the airflow and enables a raw material to be normally fed at the same time.

Description

Transition box body for preventing powder from entering kiln

Technical field

The invention relates to the field of ceramic tile production equipment, in particular to a transition box for preventing powder from entering the kiln.

Background technique

Foamed ceramics is a new construction material, which has the functions of light weight, sound insulation and heat preservation. The current industrial production of foamed ceramics is to install the raw material powders that make up the foamed ceramics in a movable cavity. There are wheels under the cavity and baffles around the cavity. The raw materials are installed in the baffle according to the shape of the foamed ceramics to be fired; the cavity enters the continuous kiln along the track for heating and firing. After modification, some materials evaporate to form porous foamed ceramics. In the production process of foamed ceramics, because it is powder that enters the kiln, the powder will be lifted by the airflow when it enters the front kiln of the kiln, so the extraction power of the smoke cannot be too large, which limits the increase in production output. . If the output is increased, the furnace length and combustion power must be increased, and a large amount of flue gas will be generated. At this time, the smoke extraction power needs to be increased. The negative pressure at the kiln mouth causes the external air to continuously flow in, and the air flow will powder Lifting up causes powder waste and blockage of pipes, resulting in uncontrollable product size.

Patent No. 201610814270.5 discloses a fired annealing tunnel kiln for the preparation of microcrystalline foamed composite materials. The kiln sections of the tunnel kiln are built with refractory materials of different classification temperatures at corresponding temperatures, and the external steel frame structure It is used as a tunnel kiln frame, with a thermal insulation cotton and refractory brick structure inside; the kiln is set as a unit with an outer steel frame structure of 2000 mm, a total of 140 to 160 unit sections. The tunnel kiln is composed of pre-heating zone, firing zone and cooling zone. The cooling zone includes five stages of rapid cooling section, slow cooling section, cold holding section, fast cooling section and tail cooling section, which is used to prevent abnormal crystallization during the cooling process and ensure the perfect sintering state of the product . The tunnel kiln system uses field bus technology to form a local area network between the computer and each control unit and communicates with the host computer to control and detect the entire system. During the firing process, the tunnel kiln can make the raw materials evenly fired completely, thereby improving the quality and output of microcrystalline foam products. The pre-heat zone of the device includes a kiln head section and a smoke exhaust section. When the raw material enters the entrance of the kiln head section, air convection is likely to occur due to the exhausting effect of the smoke exhaust section, and a powder raising phenomenon occurs at the entrance of the kiln head section.

Summary of the invention

In order to solve the above technical problems, the object of the present invention is to provide a transition box for preventing powder from entering the kiln, by setting the transition box in front of the front kiln of the kiln, and through the outer sealing doors at both ends of the transition box The inner sealed door closes the front kiln mouth, at least one of the outer sealed door and the inner sealed door is closed, and the front kiln mouth of the kiln is isolated from the external environment through the transition box to isolate the external air and reduce the air flow, while Raw materials can be fed in normally.

In order to achieve the above-mentioned object of the invention, the technical solutions adopted by the present invention are as follows:

A transition box body for preventing powder from entering the kiln. The transition box body is arranged in front of the front kiln mouth of the kiln and is connected to the front kiln mouth. The transition box body includes a box body and a A sealed door on the box body, the box body is a cavity structure with open ends, and a box inlet and a box outlet are respectively provided at both ends of the box body, the box outlet and the front Kiln mouth docking;

The sealed door includes an outer sealed door and an inner sealed door. The outer sealed door closes the box entrance by moving and opening and closing, and the inner seal door is provided at the box exit and the front kiln entrance butt A position or a cavity opening provided between the box inlet and the box outlet, the cavity opening is provided on the box body, and the inner seal door moves to open and close the box outlet Or move and open and close the cavity of the box body in the cavity opening. The size of the outer seal door and the inner seal door is greater than or equal to the size of the box entrance and box exit, so that the outer seal door can move into the box body entrance, and the inner seal door can close the box when moving Export and front kiln mouth.

Preferably, the cavity opening is provided on the top wall of the box body between the box inlet and the box outlet, and the inner seal door moves up and down in the cavity opening, and the box outlet Seal the outer ring of the joint with the front kiln mouth. When the inner sealing door moves in the opening of the cavity, the cavity of the box body can be divided into two parts. When the outer sealing door closes the box entrance, the inner sealing door is opened, and the cavity of the box body passes from the box entrance to the box The body outlet is in the open state; when the outer seal door does not close the box entrance, the inner seal door is closed, and the front half and the back half of the cavity of the box body are separated by the inner seal door to prevent external airflow from entering the back half of the box body section.

Preferably, the sizes of the outer seal door and the inner seal door are larger than the sizes of the box inlet and box outlet.

Preferably, the inner seal door is provided between the box outlet and the front kiln kiln.

Preferably, the outer sealing door and the inner sealing door are moved up and down by a first lifting drive assembly; the first lifting drive assembly includes a telescopic cylinder, a connecting rod, a beam and a guide rod, the telescopic cylinder is disposed in the box On the outer side of the upper surface of the body, the piston rod on the telescopic cylinder is vertically arranged, and the piston rod on the telescopic cylinder moves up and down along the height direction of the box body. The piston rod and the connecting rod Connected at one end, the other end of the connecting rod is fixedly connected to the beam, the beam and the upper surface of the box body are parallel to each other, the bottom of the beam is connected to two guide rods symmetrically distributed along the center of the beam, so The guide rod and the cross beam are perpendicular to each other, and the guide rod is connected to the upper end surface of the outer seal door/inner seal door.

Preferably, the connecting rod is fixedly connected at an intermediate position of the beam, and the beam is parallel to the upper surface of the box body along the width direction of the box body. The direction from the box entrance to the box exit is the length direction, and the direction perpendicular to the length direction and horizontal to the horizontal plane is the width direction.

Preferably, one end of the piston rod and the connecting rod are connected to each other through a hinge and a slide groove, the slide groove is provided with one end of the connecting rod, and one end of the hinge is hinged to one end of the piston rod. One end of the hinged part is provided with a sliding block which is connected with the sliding groove.

Preferably, an inner gantry structure is provided above the box outlet or cavity opening, the inner gantry structure includes four side walls and a top wall, the top wall is disposed above the side wall, each phase The included angle between two adjacent side walls is a right angle; the size of the top wall is larger than the cross-sectional size of the inner seal door, and the inner seal door is accommodated in the inner door frame structure when it rises;

When the inner portal structure is provided above the box outlet, the inner portal structure closes the opening at the docking position of the box outlet and the front kiln mouth;

When the inner portal structure is disposed above the cavity opening, the cavity opening is closed.

Preferably, the telescopic cylinder is provided on one side of the inner portal structure and is parallel to the inner portal structure.

Preferably, an outer gantry structure is provided above the entrance of the box, the outer gantry structure includes at least three side walls and a top wall, and the outer sealed door is accommodated in the outer gantry structure when ascending.

More preferably, the outer door frame structure includes four side walls and a top wall, the top wall is disposed above the side wall, and the angle between each adjacent two side walls is a right angle, The outer sealed door is housed in the outer door frame structure when it rises.

Preferably, the outer sealing door and the inner sealing door are moved up and down by a second lifting drive assembly; the second lifting drive assembly includes a telescopic cylinder, a beam and a guide rod, and the telescopic cylinder is provided in the inner portal structure And the outer side of the top wall of the outer gantry structure, the piston rod on the telescopic cylinder is vertically arranged, and the piston rod on the telescopic cylinder moves up and down along the height direction of the box body. The middle position of the beam is connected, and at least two guide rods symmetrically distributed along the center of the beam are connected to the beam, the guide rods and the beam are perpendicular to each other, and the beam is along the width direction of the box body. The upper surfaces of the box body are parallel to each other, and the guide rod is connected to the upper end surface of the sealing door through the top wall.

Preferably, a through hole and a sealing groove are provided on the top wall, the sealing groove is provided above the through hole, the diameter of the sealing groove is larger than the diameter of the through hole, a sealing ring is provided in the sealing groove, a guide sleeve is provided above the sealing groove, and the guide sleeve It includes a guide base and a guide cylinder. The guide cylinder is arranged above the guide base. The guide base closes the sealing groove, and both ends of the guide base are fixedly connected to the seal ring and the bottom of the seal groove by screws. The guide rod passes through the guide sleeve and the through hole Connected with outer sealed door/inner sealed door. The guide sleeve and the sealing ring play a sealing role during the movement of the guide rod, which reduces the air flow from the through hole into the box body.

Preferably, a through hole is provided on the top wall, and a guide sleeve is provided above the through hole. The guide sleeve includes a guide base and a guide cylinder. The guide cylinder is provided above the guide base. The diameter of the guide cylinder is the same as that of the through hole. The end is connected with the upper surface of the top wall by screws, and the guide rod passes through the guide cylinder and the through hole and is connected with the outer sealing door/inner sealing door. The guide sleeve plays a sealing role during the movement of the guide rod, which reduces the airflow from the through hole into the box body.

Preferably, the cavity opening is provided on the side wall of the box body between the box inlet and the box outlet.

Preferably, the sealed door performs horizontal movement by a horizontal drive assembly; the horizontal drive assembly includes a telescopic cylinder, a longitudinal beam and a guide rod, the telescopic cylinder is horizontally arranged, and the piston rod on the telescopic cylinder is along the box The main body performs a telescopic movement in the width direction, the piston rod is connected to one side of the longitudinal beam, the longitudinal beam is vertically arranged along the height direction of the box body, and the upper and lower ends of the longitudinal beam along the height direction They are respectively connected to one end of the guide rod, and the other end of the guide rod is connected to the inner seal door/outer seal door.

Preferably, a conveying roller is laid on the bottom of the box body, and a cavity for storing powder is placed on the conveying roller, and the cavity enters the box body through the opened box inlet and passes through The conveying roller enters the front kiln mouth from the opened box outlet.

Preferably, at least one door of the outer sealed door and the inner sealed door is in a closed state.

Preferably, the telescopic cylinder is one of a hydraulic cylinder, a cylinder or an electric cylinder.

More preferably, the telescopic cylinder is a cylinder.

Compared with the prior art, the present invention has achieved beneficial technical effects:

The transition box for preventing powder from entering the kiln of the invention is provided by a transition box in front of the front kiln mouth of the kiln, and the front kiln mouth is closed by an outer sealing door and an inner sealing door at both ends of the transition box. The outer sealing door and the inner sealing door are lifted or horizontally moved by the lifting drive component or the horizontal driving component. The outer sealing door and the inner seal door are opened and closed by the lifting or horizontal movement to open and close the box entrance, box exit and cavity opening. The body outlet is connected with the front kiln mouth of the kiln. The inner seal door can also close the front kiln mouth by moving. During the movement of the outer seal door and the inner seal door, at least one of the outer seal door and the inner seal door is closed. In this way, the front kiln mouth of the kiln can be isolated from the external environment through the transition box. When the outer sealing door is opened, the inner sealing door closes the box outlet and the front kiln mouth, and the powder storage cavity can enter the transition box In the body, when the outer door is sealed, the inner door is opened, the box outlet or the cavity of the box body and the front kiln mouth are open, and the powder storage cavity passes through the box outlet and the front The mouth of the kiln enters the front kiln of the kiln, so the circulation can isolate the external air and reduce the air flow, while the raw materials can be fed normally. The inner gantry structure provided on the main body of the box can be completely connected to the outlet of the main body of the box and the front kiln. The inner sealed door can be accommodated in the inner gantry structure during the lifting movement to prevent external airflow from the box outlet The inflow at the interface with the front kiln mouth lifts the powder.

BRIEF DESCRIPTION

1 is a schematic structural view of a first embodiment of a transition box body for preventing powder from entering a kiln according to the present invention;

2 is a schematic structural view of a lifting drive assembly in a first embodiment of a transition box for preventing powder from entering a kiln according to the present invention;

3 is a main view of the lifting drive assembly in the fourth embodiment of a transition box for preventing powder from entering the kiln according to the present invention;

Fig. 4 is a side view of a lifting drive assembly in a fourth embodiment of a transition box for preventing powder from entering a kiln according to the present invention.

Reference mark:

1. Outer sealed door; 2. Transition box; 21. Box body; 3. Inner sealed door; 4. Kiln; 41. Capacity chamber; 5. Conveyor roller; 6. Box entrance; 7. Box exit ; 8. Front kiln mouth; 9. Telescopic cylinder; 91. Piston rod; 92. Connecting rod; 94. Guide rod; 95. Inner gantry structure; 96. Side wall; 97. Top wall; 98. Outer gantry Structure; 981. Inclined wall; 99. Beam; 941. Guide sleeve.

detailed description

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail in conjunction with the embodiments below, but the scope of protection claimed by the present invention is not limited to the following specific embodiments.

Example 1

As shown in FIGS. 1 and 2, a transition box 2 for preventing powder from entering the kiln is provided in front of the front kiln 8 of the kiln 4 and is connected to the front kiln 8 of the kiln. The transition box 2 includes a box body 21 and sealing doors provided at both ends of the box body 21. A box inlet 6 and a box outlet 7 are provided at both ends of the box body 21, respectively. The outlet 7 is docked with the front kiln mouth 8; the sealed door includes an outer sealed door 1 closing the box inlet 6 and an inner sealed door 3 closing the box outlet 7, the outer sealed door 1 By moving and opening and closing the box entrance 6, the inner seal door 3 is opened and closed by moving and opening and closing the box exit 7 at a position where the box exit 7 and the front kiln mouth 8 are docked The door 3 is provided between the box outlet 7 and the front kiln mouth 8. The dimensions of the outer sealed door 1 and the inner sealed door 3 are greater than or equal to the dimensions of the box inlet 6 and box outlet 7, preferably in this embodiment, the outer sealed door 1 and the inner sealed door The size of 3 is larger than the size of the box inlet 6 and the box outlet 7. When the outer seal door 1 is moved, the entrance of the box body 21 can be used, and when the inner seal door 3 is moved, the exit of the box body 21 and the front kiln mouth 8 can be used.

As shown in FIG. 2, the outer sealed door 1 and the inner sealed door 3 respectively open and close the box inlet 6 and box outlet 7 by lifting movement, and the outer sealed door 1 and the inner sealed door 3 They all move up and down through a first lifting drive assembly, which includes a telescopic cylinder 9, a connecting rod 92, a cross beam 99, and a guide rod 94. The telescopic cylinder 9 is one of a hydraulic cylinder, a cylinder, or an electric cylinder In this embodiment, the preferred telescopic cylinder 9 is a cylinder. The telescopic cylinder 9 is disposed outside the upper surface of the box body 21, the piston rod 91 on the telescopic cylinder 9 is vertically disposed, and the piston rod 91 on the telescopic cylinder 9 is along the In the height direction, the piston rod 91 and one end of the connecting rod 92 are connected by screws, and the other end of the connecting rod 92 is fixedly connected to the crossbeam 99 by screws, and the crossbeam 99 and the box body The upper surface of the main body 21 is parallel to each other, and the bottom surface of the beam 99 is fixedly connected with two guide rods 94 distributed symmetrically along the center of the beam 99, the guide rod 94 and the beam 99 are perpendicular to each other, the guide rod 94 and the The upper end faces of the outer seal door 1/inner seal door 3 are connected. The connecting rod 92 is fixedly connected at an intermediate position of the beam 99, and the beam 99 is parallel to the upper surface of the box body 21 along the width direction of the box body 21. The direction along the box inlet 6 to the box outlet 7 is the longitudinal direction, and the direction perpendicular to the longitudinal direction and horizontal to the horizontal plane is the width direction. The cylinder drives the connecting rod 92 to drive the beam 99 and the guide rod 94 to move up and down. The guide rod 94 is connected to the outer seal door 1/inner seal door 3 to realize the up and down movement of the outer seal door 1/inner seal door 3.

An inner gantry structure 95 is provided above the box outlet 7, and the inner gantry structure 95 includes four side walls 96 and a top wall 97, and the top wall 97 is provided above the side wall 96, each phase The included angle between two adjacent side walls 96 is a right angle. The inner gantry structure 95 closes the interface of the docking position of the box outlet 7 and the front kiln mouth 8, and the size of the top wall 97 is larger than The size of the cross section of the inner seal door 3, the inner seal door 3 is housed in the inner door frame structure 95 when it is raised. The telescopic cylinder 9 is disposed on one side of the inner gantry structure 95 and is parallel to the inner gantry structure 95. The inner door frame structure 95 can prevent the airflow from entering the box body 21 and the kiln 4 when the inner sealing door 3 is moved up and down.

An outer gantry structure 98 is provided above the box entrance 6. The outer gantry structure 98 includes at least three side walls 96 and a top wall 97. The outer sealed door 1 is housed in the outer gantry when ascending Structure 98. Preferably in this embodiment, the outer gantry structure 98 includes a side wall 96 and a top wall 97, the top wall 97 is disposed above the side wall 96, and the clamp between the side wall 96 and the top wall 97 The angle is right angle, and two inclined walls 981 parallel to each other are provided between the side wall 96 and the top wall 97 to support the side wall 96 and the top wall 97.

Through holes and sealing grooves are provided on the top wall 97 of the inner gantry structure 95 and the outer gantry structure 98. The sealing groove is provided above the through hole. The diameter of the sealing groove is larger than the diameter of the through hole. A seal is provided in the sealing groove A guide sleeve 941 is provided above the sealing groove. The guide sleeve 941 includes a guide base and a guide cylinder. The guide cylinder is provided above the guide base. The guide base closes the seal groove, and both ends of the guide base are fixed to the seal ring and the bottom of the seal groove by screws To connect, the guide rod 94 passes through the guide sleeve 941 and the through hole and is connected to the outer seal door 1/inner seal door 3. The guide sleeve 941 cooperates with the sealing ring to play a sealing role during the movement of the guide rod 94, reducing the air flow from the through hole into the box body 21.

A conveying roller 5 is laid on the bottom of the box body 21, and a container 41 for storing powder is placed on the conveyor roller 5, and the container 41 enters the box body 21 through the opened box inlet 6 And enter the front kiln 8 through the conveying roller 5 from the opened box outlet 7 after opening. At least one door of the outer sealed door 1 and the inner sealed door 3 is closed.

The transition box 2 provided by the present invention can prevent the powder generated due to air convection when the cavity 41 enters the kiln 4 during the ceramic production process. By setting the transition box 2 in front of the front kiln 8 of the kiln 4 and passing The outer seal door 1 and the inner seal door 3 at both ends of the transition box 2 close the front kiln mouth 8, the outer seal door 1 and the inner seal door 3 move up and down or horizontally through the lifting drive assembly or the horizontal drive assembly, and the outer seal door 1 Open and close the box inlet 6 and box outlet 7 with the inner seal door 3 by lifting or horizontal movement. The box outlet 7 is docked with the front kiln port 8 of the kiln 4. The inner seal door 3 can also close the front kiln by moving Kiln 8, during the movement of the outer sealed door 1 and the inner sealed door 3, at least one door of the outer sealed door 1 and the inner sealed door 3 is closed, so that the front kiln of the kiln 4 can be transferred through the transition box 2 8 is isolated from the outside environment, when the outer sealing door 1 is opened, the inner sealing door 3 closes the box outlet 7 and the front kiln mouth 8, the powder storage cavity 41 can enter the transition box 2, when the outer sealing door 1 At the entrance of the box body 21, the inner sealing door 3 is opened, the box outlet 7 and the front kiln mouth 8 are in an open state, and the powder storage cavity 41 enters the kiln through the box outlet 7 and the front kiln mouth 8 in turn In the front kiln of 4, the circulation can isolate the outside air and reduce the airflow, and the raw materials can be fed normally. The inner gantry structure 95 provided on the box body 21 can be in a position where the outlet of the box body 21 and the front kiln mouth 8 are docked. The inner sealed door 3 can be accommodated in the inner door frame structure 95 during the lifting movement to prevent The external airflow flows in from the interface of the box outlet 7 and the front kiln mouth 8 to lift the powder.

Example 2

This embodiment only describes the differences from the above embodiment, and the remaining technical features are the same as the above embodiment. In this embodiment, one end of the piston rod 91 and the connecting rod 92 are connected to each other through a hinge and a slide groove, the slide groove is provided with one end of the connecting rod 92, and one end of the hinge is connected to the piston One end of the rod 91 is hinged, and one end of the hinged member is provided with a slider that is cooperatively connected with the slide groove.

Example 3

This embodiment only describes the differences from the above embodiment, and the remaining technical features are the same as the above embodiment. In this embodiment, the outer gantry structure 98 includes four side walls 96 and a top wall 97, the top wall 97 is disposed above the side wall 96, between each adjacent two side walls 96 The included angle is a right angle, and the outer sealed door 1 is stored in the outer door frame structure 98 when it is raised.

Example 4

As shown in FIGS. 3 and 4, this embodiment only describes the differences from the above embodiment, and the remaining technical features are the same as the above embodiment. In this embodiment, the outer seal door 1 and the inner seal door 3 open and close the box inlet 6 and box outlet 7 respectively by lifting movement, the outer seal door 1 and the inner seal door 3 Both perform lifting movement through a second lifting drive assembly, the second lifting drive assembly includes a telescopic cylinder 9, a cross beam 99 and a guide rod 94, on the top wall 97 of the inner gantry structure 95 and the outer gantry structure 98 The second lifting drive assembly is provided on each outer side, the telescopic rod is provided on the outer side of the top wall 97 of the inner gantry structure 95 and the outer gantry structure 98, and the piston rod 91 on the telescopic cylinder 9 is vertically arranged , The piston rod 91 on the telescopic cylinder 9 moves up and down along the height direction of the box body 21, the piston rod 91 is connected to the middle position of the beam 99, and at least two edges are connected to the beam 99 A guide bar 94 symmetrically distributed in the center of the beam 99, the guide rod 94 and the beam 99 are perpendicular to each other, and the beam 99 is parallel to the upper surface of the box body 21 along the width direction of the box body 21, The guide rod 94 passes through the top wall 97 and is connected to the upper end surface of the outer seal door 1 /inner seal door 3 by screws.

Example 5

This embodiment only describes the differences from the above embodiment, and the remaining technical features are the same as the above embodiment. In this embodiment, a through hole is provided on the top wall 97 of the inner gantry structure 95 and the outer gantry structure 98, and a guide sleeve 941 is provided above the through hole. The guide sleeve 941 includes a guide base and a guide tube. The guide tube is provided Above the guide base, the diameter of the guide cylinder is the same as that of the through hole. Both ends of the guide base are connected to the upper surface of the top wall 97 by screws. The guide rod 94 passes through the guide cylinder and the through hole and the outer seal door 1/inner The sealed door 3 is connected. The guide sleeve 941 plays a sealing role during the movement of the guide rod 94, which reduces the air flow from the through hole into the box body 21.

Example 6

This embodiment only describes the differences from the above embodiment, and the remaining technical features are the same as the above embodiment. In this embodiment, the outer sealed door 1 and the inner sealed door 3 open and close the box inlet 6 and box outlet 7 by horizontal movement, respectively, the outer sealed door 1 and the inner sealed door 3 The horizontal drive assembly is used for horizontal movement; the horizontal drive assembly includes a telescopic cylinder 9, a longitudinal beam and a guide rod 94, the telescopic cylinder 9 is arranged horizontally, and the piston rod 91 on the telescopic cylinder 9 is along the box body 21 extends and contracts in the width direction, the piston rod 91 is connected to one side of the guide rod 94, the guide rod 94 is vertically arranged along the height direction of the box body 21, and the guide rod 94 is along the height The upper and lower ends of the direction are respectively connected to one end of the longitudinal beam, and the other end of the longitudinal beam is connected to the inner sealed door 3/outer sealed door 1.

Example 7

This embodiment only describes the differences from the above embodiment, and the remaining technical features are the same as the above embodiment. In this embodiment, the outer gantry structure 98 includes three side walls 96 and a top wall 97, where one side wall 96 is located between two side walls 96 that are parallel to each other.

Example 8

This embodiment only describes the differences from the above embodiment, and the remaining technical features are the same as the above embodiment. In this embodiment, the inner seal door 3 is provided on the cavity opening between the box inlet 6 and the box outlet 7, the cavity opening is provided on the box body 21, the The inner seal door 3 moves in the cavity opening to open and close the cavity of the box body 21. The cavity opening is provided on the top wall of the box body 21 between the box inlet 6 and the box outlet 7, and the inner seal door 3 moves up and down in the cavity opening, the box The outlet 7 is sealed with the outer ring at the joint of the front kiln mouth. When the inner sealing door 3 moves in the opening of the cavity, the cavity of the box body 21 can be divided into two parts. When the outer sealing door 1 closes the entrance of the box, the inner sealing door 3 is opened, and the cavity of the box body 21 is formed by The box inlet 6 to the box outlet 7 are in the open state; when the outer seal door 1 does not close the box inlet 6, the inner seal door 3 is closed, and the front half and the back half of the cavity of the box body 21 pass through the inner seal door 3 Separated to prevent external airflow from entering the rear half of the box body 21.

Example 9

This embodiment only describes the differences from the above embodiment, and the remaining technical features are the same as the above embodiment. In this embodiment, the cavity opening is provided on the side wall of the box body 21 between the box inlet 6 and the box outlet 7, and the inner seal door 3 is horizontal in the cavity opening movement. The outer seal door 1 and the inner seal door 3 respectively open and close the box entrance 6 and the cavity opening by horizontal movement, and the outer seal door 1 and the inner seal door 3 are horizontal by a horizontal drive assembly The horizontal drive assembly includes a telescopic cylinder 9, a longitudinal beam and a guide rod 94, the telescopic cylinder 9 is horizontally arranged, and the piston rod 91 on the telescopic cylinder 9 performs a telescopic movement along the width direction of the box body 21 , The piston rod 91 is connected to one side of the guide rod 94, the guide rod 94 is vertically arranged along the height direction of the box body 21, and the upper and lower ends of the guide rod 94 along the height direction are respectively One end of the longitudinal beam is connected, and the other end of the longitudinal beam is connected to the inner sealed door 3/outer sealed door 1.

According to the disclosure and teaching of the above description, those skilled in the art to which the present invention belongs can also make changes and modifications to the above-mentioned embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the invention.

Claims

A transition box for preventing powder from entering the kiln. The transition box is arranged in front of the front kiln mouth of the kiln and connected to the front kiln mouth. The characteristic is that the transition box includes a box body And a sealed door provided on the box body, the box body is a cavity structure with open ends, the box body inlet and box body outlet are respectively provided at both ends of the box body, and the box body outlet Docking with the front kiln mouth;

The sealed door includes an outer sealed door and an inner sealed door. The outer sealed door closes the box entrance by moving and opening and closing, and the inner seal door is provided at the box exit and the front kiln entrance butt A position or a cavity opening provided between the box inlet and the box outlet, the cavity opening is provided on the box body, and the inner seal door moves to open and close the box outlet Or move and open and close the cavity of the box body in the cavity opening.
The transition box for preventing powder from entering the kiln according to claim 1, characterized in that the cavity opening is provided on the top wall of the box body between the box inlet and the box outlet, so The inner sealing door performs an ascending and descending movement in the opening of the cavity, and the outer ring of the junction of the outlet of the box body and the front kiln is sealed and sealed.
The transition box for preventing powder from entering the kiln according to claim 1, wherein the outer sealing door and the inner sealing door are moved by a first lifting drive assembly; the first lifting drive assembly includes A telescopic cylinder, a connecting rod, a beam, and a guide rod, the telescopic cylinder is disposed outside the upper surface of the box body, the piston rod on the telescopic cylinder is vertically disposed, and the piston rod on the telescopic cylinder extends along the The height direction of the box body moves up and down, the piston rod is connected to one end of the connecting rod, the other end of the connecting rod is fixedly connected to the beam, the beam and the upper surface of the box body are mutually connected Parallel, the bottom surface of the beam is connected with two guide rods symmetrically distributed along the center of the beam, the guide rod and the beam are perpendicular to each other, and the guide rod is connected with the upper end surface of the outer seal door/inner seal door.
The transition box for preventing powder from entering the kiln according to claim 3, wherein the connecting rod is fixedly connected at the middle position of the beam, and the beam is along the width of the box body The upper surfaces of the box body are parallel to each other.
A transitional box body for preventing powder from entering a kiln according to claim 1, wherein an inner door frame structure is provided above the box body outlet or cavity opening, and the inner door frame structure includes four side walls And a top wall, the top wall is disposed above the side wall, and the angle between each adjacent two side walls is a right angle; the size of the top wall is larger than the cross-sectional size of the inner seal door , The inner sealed door is housed in the inner door frame structure when rising;

When the inner portal structure is provided above the box outlet, the inner portal structure closes the opening at the docking position of the box outlet and the front kiln mouth;

When the inner portal structure is disposed above the cavity opening, the cavity opening is closed.
The transition box for preventing powder from entering the kiln according to claim 5, wherein an outer portal structure is provided above the entrance of the box, and the outer portal structure includes at least one side wall and a top wall , The outer sealed door is stored in the outer door frame structure when ascending.
A transition box for preventing powder from entering a kiln according to claim 6, wherein the outer sealing door and the inner sealing door are moved by a second lifting drive assembly; the second lifting drive assembly includes A telescopic cylinder, a beam and a guide rod, the telescopic cylinder is arranged outside the top wall of the inner gantry structure and the outer gantry structure, the piston rod on the telescopic cylinder is arranged vertically, and the The piston rod moves up and down along the height direction of the box body. The piston rod is connected to the middle position of the beam. At least two guide rods symmetrically distributed along the center of the beam are connected to the beam. The beams are perpendicular to each other. The beams are parallel to the upper surface of the box body in the width direction of the box body. The guide bar passes through the top wall and is connected to the upper end surface of the sealing door.
The transition box for preventing powder from entering the kiln according to claim 1, characterized in that the cavity opening is provided on the side wall of the box body between the box inlet and the box outlet, so The inner seal door moves horizontally in the cavity opening.
The transition box for preventing powder from entering the kiln according to claim 8, characterized in that the inner seal door and the outer seal door are horizontally moved by a horizontal drive assembly; the horizontal drive assembly includes a telescopic cylinder and a longitudinal A beam and a guide rod, the telescopic cylinder is arranged horizontally, the piston rod on the telescopic cylinder performs a telescopic movement along the width direction of the box body, the piston rod is connected to one side of the longitudinal beam, the longitudinal The beam is vertically arranged along the height direction of the box body, the upper and lower ends of the longitudinal beam along the height direction are respectively connected to one end of the guide rod, and the other end of the guide rod is connected to the inner seal door/ Externally sealed door.
The transition box for preventing powder from entering a kiln according to claim 1, wherein at least one door of the outer sealed door and the inner sealed door is closed.