CN211027360U

CN211027360U - Vacuum net burning furnace

Info

Publication number: CN211027360U
Application number: CN201921647621.3U
Authority: CN
Inventors: 张松山; 朱小俊
Original assignee: Wuhan Locomotive Technology Co ltd
Current assignee: Wuhan Locomotive Technology Co ltd
Priority date: 2019-09-28
Filing date: 2019-09-28
Publication date: 2020-07-17
Anticipated expiration: 2029-09-28

Abstract

The utility model relates to the technical field of plastic machinery, concretely relates to net stove is burnt in vacuum. The furnace comprises a base, a furnace body fixed on the base and a furnace door moving relative to the base; the base comprises an underframe, a screw rod rotationally connected with the underframe and a driving piece for driving the screw rod to rotate; the furnace door comprises a movable frame in threaded connection with the screw rod, a door body fixed on the movable frame and a shelf hinged with the door body; the inside washing chamber that forms of furnace body, the furnace gate seals the open end that washs the chamber and makes the supporter stretch into to wasing the intracavity, and the furnace body is including setting up in the heating pipe that washs the intracavity, setting up in the spray pipe that washs the intracavity and set up the vacuum cycle subassembly that is used for providing vacuum environment to wasing the chamber outside the equipment chamber. The vacuum screen burning furnace is convenient for loading the plastic granulation screen; the arrangement in the cleaning cavity of the furnace body is simpler, and the cleaning dead angle is reduced.

Description

Vacuum net burning furnace

Technical Field

The utility model relates to the technical field of plastic machinery, concretely relates to net stove is burnt in vacuum.

Background

The vacuum screen burning furnace is suitable for cleaning die heads or granulating filter screens in the industries of plastics, cables and resins, and is also suitable for cleaning components, spinneret plates and filter cores of various chemical fiber material products in the chemical fiber industry. The principle that high-molecular polymers are melted at high temperature, cracked and coked under the condition of air isolation and a micro-oxygen environment can be oxidized to produce gas molecules is utilized, the workpiece can be fully cleaned, and the workpiece can be thoroughly cleaned by matching with water washing. The existing horizontal vacuum net burning furnace is characterized in that a furnace door and a furnace body are separately arranged, a storage rack is arranged on the furnace door, and a track is arranged in the furnace body, so that the furnace door drives the storage rack to move on the track, and workpieces to be cleaned can be conveniently loaded. But it sets up the track in the furnace body, and the track that sets up more in the furnace body all has the clearance dead angle when its during operation or this later stage set up the clearance, sets up succinctly inadequately in the furnace body.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the embodiment of the utility model provides a net stove is burnt in vacuum, when can satisfying the free convenient loading and unloading of supporter, can also make the internal setting of furnace succinct, reduced clean dead angle, its technical scheme as follows:

a vacuum screen burning furnace comprises a base, a furnace body fixed on the base, and a furnace door moving relative to the base to seal the furnace body;

the base comprises an underframe, a screw rod rotationally connected with the underframe and a driving piece driving the screw rod to rotate, the screw rod comprises a rod body and a first gear coaxially fixed at one end of the rod body, the driving piece comprises a driving rod and a second gear coaxially fixed with the driving rod, and the second gear is meshed with the first gear;

the furnace door comprises a moving frame in threaded connection with the screw rod, a door body fixed on the moving frame and a storage rack hinged with the door body;

a cleaning cavity is formed in the furnace body, the furnace door moves along the screw rod to seal the opening end of the cleaning cavity and enable the storage rack to extend into the cleaning cavity; the furnace body including set up in wash the heating pipe of intracavity, set up in wash the spray pipe of intracavity, and set up in wash the chamber outside be used for to wash the chamber provides vacuum environment's vacuum cycle subassembly.

The utility model provides a technical scheme includes following beneficial effect at least:

according to the vacuum net burning furnace, the movable frame and the lead screw are arranged, the storage rack is connected with the furnace door, when the driving rod is rotated, the movable frame can drive the furnace door to move along the length direction of the lead screw, and simultaneously the storage rack is driven to stably move in the cleaning cavity, so that loading of a plastic granulation net is facilitated; the track that sets up in wasing the intracavity has been reduced for wash the setting of intracavity succinct more, reduced and washd the dead angle.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

In the present invention, unless otherwise expressly specified or limited, the term "disposed" is to be understood in a broad sense and can be either a static connection or a dynamic connection, a non-removable connection or a removable connection, or resting thereon or in a particular orientation; "fixed" is a static connection; the sleeve joint can be a sleeve joint which is sleeved outside a certain part without contacting, a sleeve joint which is sleeved outside the certain part and is in threaded connection with the certain part, or a sleeve joint which is sleeved outside the certain part and is in detachable connection; "threaded connection" means a connection by thread engagement, rotation; "rotationally connected" means connected by balls, rollers, etc., and one or both of the two connectors can rotate; the term "transmission connection" refers to a connection mode that is indirectly connected by means of a chain, a conveyor belt or a connecting rod and acts synchronously; "communicate" means "fixed" or "connected" together and the internal spaces are in communication; "electrically connected" means that the electronic components are connected by a conductive medium; unless otherwise specifically defined, the specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

Drawings

FIG. 1 is a schematic view of a vacuum screen burning furnace provided by an embodiment of the present invention;

fig. 2 is a partial enlarged view of a connecting portion between the driving member and the screw rod provided in the embodiment of the present invention in fig. 1;

in the figure:

1 base, 10 underframe, 11 screw rod, 110 rod body, 111 first gear, 12 driving piece, 120 driving rod, 1200 hand wheel, 121 second gear,

2 furnace body, 20 inner furnace body, 200 cleaning cavity, 2000 waste outlet, 201 waste pipe, 202 safety valve, 21 outer furnace body, 22 heat insulation medium, 23 sealing locking device, 24 heating pipe, 25 cleaning component, 250 water spray pipe, 2500 water spray hole, 26 vacuum circulation component, 260 vacuum pump, 261 waste gas absorption tank, 262 gas-liquid separator, 263 circulating pump, 264 gas mixer, 2640 first inlet, 2641 second inlet, 2642 first outlet,

3 oven door, moving

frame

30, 31 door body, 32 shelf, 320 roller, 300 moving part, 301 bearing, 302 supporting part,

4 waste collection tank, outer tank 40, inner tank 41,

coolant

42, 43 filter, 44 inner tank waste outlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention. In the description of the present invention, it is to be understood that the terms "first", "second", "third", "fourth", "fifth", and the like are used merely for distinguishing between descriptions and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are used to indicate an orientation or positional relationship based on that shown in the drawings, it is only for convenience of description and simplicity of description, and it is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-2, a vacuum screen burning furnace includes a base 1, a furnace body 2 fixed on the base 1, and a furnace door 3 moving relative to the base 1;

the base 1 comprises an underframe 10, a screw rod 11 rotationally connected with the underframe 10 and a driving piece 12 driving the screw rod 11 to rotate, wherein the screw rod 11 comprises a rod body 110 and a first gear 111 coaxially fixed at one end of the rod body 110, the driving piece 12 comprises a driving rod 120 and a second gear 121 coaxially fixed with the driving rod 120, and the second gear 121 is meshed with the first gear 111; thus, the driving rod 120 is rotated to drive the screw rod 11 to rotate. Further, a handle 1200 is fixed at one end of the driving rod 120, so that the driving rod 120 can be more conveniently rotated; specifically, both ends of the screw rod 11 are fixed on the base frame 10 through bearings, the driving rod 120 is also fixed on the base frame 10 through bearings, and the screw rod 11 and the driving rod 120 can rotate around respective axes relative to the base frame 10.

The oven door 3 comprises a moving frame 30 in threaded connection with the screw rod 11, a door body 31 fixed on the moving frame 30 and a shelf 32 hinged with the door body 31; the furnace body 2 comprises an inner furnace body 20, an outer furnace body 21 and a heat insulation medium 22 positioned between the inner furnace body 20 and the outer furnace body 21, a cleaning cavity 200 is formed inside the inner furnace body 20, the furnace door 3 moves along the screw rod 11 to seal the opening end of the cleaning cavity 200 and enable the shelf 32 to extend into the cleaning cavity 200; specifically, a space is formed between the inner furnace body and the outer furnace body, and the heat insulation medium 22 can be a vacuum or inorganic heat insulation material, so that heat preservation and heat insulation can be performed in the cleaning cavity 200; one end of the cleaning cavity 200 is opened, and the oven door 3 is used for sealing the opening of the cleaning cavity 200; further, the furnace body 2 also comprises a sealing locking device 23 arranged on the outer wall of the opening end of the cleaning cavity 200, and after the furnace door 3 seals the furnace body 2, the furnace door 3 is locked on the furnace body 2 through the sealing locking device 23;

the furnace body 2 further comprises a heating pipe 24 arranged in the cleaning cavity 200, a cleaning component 25 for cleaning the cleaning cavity 200, and a vacuum circulation component 26 arranged outside the cleaning cavity 200 and used for providing a vacuum environment for the cleaning cavity 200.

Specifically, the heating pipe 24 is an electric heating pipe, and is wound and fixed on two sides inside the cleaning chamber 200, and is electrically connected with an external power supply; the cleaning assembly 25 comprises a water spraying pipe 250 arranged at the top of the cleaning cavity 200, a water tank (not shown in the figure) communicated with the water spraying pipe, and a water pump (not shown in the figure) for driving water in the water tank to flow to the water spraying pipe 250, wherein the water spraying pipe 250 is uniformly arranged, and the side wall of the water spraying pipe is provided with water spraying holes 2500, so that the plastic granulation net is cleaned after being subjected to vacuum high-temperature treatment. Specifically, the water tank and the water pump are disposed outside the washing chamber 200.

The vacuum circulation component 26 can generate a certain negative pressure in the cleaning cavity 200, and when the heating pipe 24 is used for heating the interior of the cleaning cavity 200 to 500 ℃ of 300-; when the storage rack 32 is placed in the cleaning chamber 200, the cleaning assembly 25 can clean the plastic pelletizing net on the storage rack 32.

Specifically, the bottom of the storage rack 32 at one end in the cleaning cavity 200 is provided with the roller 320, so that when the storage rack 32 moves along with the moving rack 30, the storage rack can stably roll in the inner furnace body 20, and meanwhile, the arrangement track in the cleaning cavity is reduced, so that the arrangement in the cleaning cavity is simpler, and the cleaning dead angle is reduced; placing a plastic granulation net to be cleaned on a storage rack 32, driving a screw rod 11 to rotate, enabling a moving rack 30 to move along the length direction of the screw rod 11, and driving the storage rack 32 to move into a cleaning cavity 200; specifically, gyro wheel 320 and supporter 32 and door body 31 pin joint set up two at least and evenly distributed separately, and one correspondence setting of homogeneous, if supporter 32 one end and door body 31 pin joint be two, supporter 32 other end bottom surface corresponds the position and evenly sets up two gyro wheels 320, so makes supporter 32 remove more steadily in washing chamber 200.

Further, the moving frame 30 includes a moving portion 300 which is sleeved on the screw rod 11 and is in threaded connection therewith, a bearing 301 which is sleeved on the moving portion 300 and is in rotational connection therewith, and a supporting portion 302 which is fixed on an outer ring of the bearing 301, and the door body 31 is fixedly connected to the supporting portion 302. Specifically, the furnace body 2 is generally a horizontal cylinder, the door body 31 is a disc, the rack 32 travels on the inner wall of the cleaning chamber 200 through two rollers 320 at one end thereof, the driving rod 120 rotates to drive the screw rod 11 to rotate, the screw rod 11 rotates to drive the moving part 300 to spirally move along the length direction of the screw rod 11, the moving part 300 is fixed on the inner ring of the bearing 301, the supporting part 302 is fixed on the outer ring of the bearing 301, the screw rod 11, the moving part 300, the bearing 301, the supporting part 302, the first gear 111 and the second gear 121 are at least two, and the first gear and the second gear are uniformly arranged in a corresponding manner, so that the movement of the furnace door 3 relative.

Further, the embodiment of the utility model provides a vacuum screen burning furnace still includes sets up in furnace body 2 below and rather than the garbage collection jar 4 of intercommunication. Specifically, the inner furnace body 20 is horizontally arranged, and the inner furnace body 20 further comprises a waste pipe 201, a safety valve 202 and an air inlet 203, wherein the waste pipe 201 is provided with a plurality of waste outlets 2000 at the lower end of the bottom, the waste pipe connects the waste outlets 2000 with the waste collecting tank 4, the safety valve communicates with the cleaning cavity 200, and the air inlet 203 communicates with the cleaning cavity 200. The waste pipe 201 is made of a heat insulating material, so that the heat of the inner furnace body 20 is reduced from being transferred to the waste collection tank 4 through the side wall thereof. The safety valve 202 prevents excessive pressure in the cleaning chamber 200, and the air inlet 203 is used to supply a minute amount of air to the cleaning chamber 200 to oxidize the plastic waste at a high temperature.

Specifically, the vacuum circulation module 26 includes a vacuum pump 260, an exhaust gas absorption tank 261, a gas-liquid separator 262, a circulation pump 263 and a gas mixer 264 which are sequentially communicated, an inlet of the vacuum pump 260 is communicated with the waste material collection tank 4, and an outlet of the gas mixer 264 is communicated with the cleaning chamber 200. So, communicate garbage collection tank 4 through vacuum pump 260, can enough provide certain vacuum for rinsing in the chamber 200, still can make the plastics waste material of remaining on the plastics granulation net adsorbed in accelerating the separation to garbage collection tank 4.

Specifically, the waste gas absorption tank 261 includes a gas absorption medium 2610 contained therein, and the gas absorption medium can be lye, activated carbon particles or alumina particles. The gas-liquid separator 262 can remove water from the gas discharged from the offgas absorber 261 and return the obtained water to the offgas absorber 261 or the water tank. The gas mixer 264 has a first inlet 2640 communicating with the outlet of the circulation pump 263, a second inlet 2641 communicating with the atmosphere, and a first outlet 2642 communicating with the cleaning chamber 200. Specifically, the gas-liquid separator 262 is a gravity settling type or baffling separation type gas-liquid separator, and the gas mixer 264 is a venturi tube mixer. Thus, after the gas generated by the plastic cracking of the cleaning cavity 200 passes through the waste gas absorption tank 261 and the gas-liquid separator 262, most of the toxic and harmful gas is removed, and trace air is continuously provided into the cleaning cavity 200 through the circulating pump 263 and the gas mixer 264, so that the micromolecules and the gas generated by the plastic cracking can be oxidized into nontoxic gas and micromolecules products, meanwhile, the gas which is not completely treated by the waste gas absorption tank 261 is further treated at high temperature and further treated by the waste gas absorption tank 261, and the purpose of waste gas circulating treatment is achieved.

Further, the waste collection tank 4 includes an outer tank 40, an inner tank 41 communicating with the washing chamber 200, a coolant 42 accommodated between the outer tank 40 and the inner tank 41, and a filter 43 provided at a communication portion of the inner tank 41 and the vacuum pump 260. Specifically, the inner tank 41 is communicated with the cleaning cavity 200 through a waste pipe 201, the outer tank 40 is wrapped on the inner tank 41 and is provided with a coolant inlet and a coolant outlet so as to introduce the coolant 42 between the inner tank 41 and the outer tank 40, and the coolant 42 can be water; specifically, can carry out the branch pipeline with the water of water tank and communicate the coolant import through the water pump to between letting in inner tank and the outer jar, return to the water tank by the coolant export again, so, cool off in the inner tank 41, make the melting in the washing chamber 200 or the schizolysis produce waste material through rapid cooling in the waste outlet 2000 gets into inner tank 41, the post processing of being convenient for. Specifically, the waste collection tank 4 is provided with an inner tank waste outlet 44 communicating with the inner tank 41, and the waste collection inside the waste collection tank reaches a certain amount, and the outlet is opened to clean the inside of the inner tank 41. Specifically, the filter 43 provided at the communication portion of the inner tank 41 and the vacuum pump 260 is mainly for preventing the waste material in the inner tank 41 from being adsorbed to the vacuum pump 260.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A vacuum screen burning furnace is characterized by comprising a base, a furnace body fixed on the base and a furnace door moving relative to the base to seal the furnace body;

2. The vacuum screen burning furnace according to claim 1, wherein the movable frame comprises a movable portion sleeved on the screw rod and in threaded connection with the screw rod, a bearing sleeved on the movable portion and in rotational connection with the movable portion, and a support portion fixed on an outer ring of the bearing, and the door body is fixedly connected to the support portion.

3. The vacuum screen sintering furnace according to claim 2, wherein the screw, the first gear, the second gear, the moving part, the bearing and the support part are provided in at least two numbers, one for one.

4. The vacuum screen burning furnace of claim 1, wherein the rack comprises a roller fixed on a bottom surface of an end of the rack extending into the cleaning chamber.

5. The vacuum screen burning furnace of claim 1, further comprising a waste collecting tank disposed below the furnace body and communicating with the furnace body.

6. The vacuum screen burning furnace of claim 5, wherein the vacuum circulation assembly comprises a vacuum pump, an exhaust gas absorption tank, a gas-liquid separator, a circulation pump and a gas mixer which are sequentially communicated, an inlet of the vacuum pump is communicated with the waste material collection tank, and an outlet of the gas mixer is communicated with the cleaning cavity.

7. The vacuum screen burning furnace of claim 6, wherein the waste collection tank comprises an outer tank, an inner tank in communication with the cleaning chamber, a coolant contained between the outer tank and the inner tank, and a filter disposed where the inner tank is in communication with the vacuum pump.