CN112179141A

CN112179141A - Combined high-temperature experimental furnace tube device

Info

Publication number: CN112179141A
Application number: CN202010874912.7A
Authority: CN
Inventors: 樊旺青; 金刚; 张强; 王生慧; 许维宗; 郭堂国
Original assignee: China Construction Industrial and Energy Engineering Group Co Ltd
Current assignee: China Construction Industrial and Energy Engineering Group Co Ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-01-05

Abstract

The utility model provides a combined high temperature experiment stove boiler tube device, is provided with the round resistance wire in the furnace body, and the resistance wire is equipped with the boiler tube, and the boiler tube divide into two tube slots from top to bottom, be provided with the slip splint in the tube slot, be provided with crucible groove or crucible boat groove on the slip splint, the fender fire brick has all been placed to boiler tube both ends opening part, and the one end of boiler tube is connected with air inlet flange, is equipped with the air inlet on the air inlet flange, and the other end of boiler tube is connected with the flange of giving vent to. The arrangement of the plurality of air inlets can simultaneously meet the requirements of introducing various gases and uninterruptedly introducing different gases, the two-section arrangement of the furnace tube not only facilitates the direct storage and the fetching of the roasting materials, but also saves the trouble of installing the flange under certain conditions, and the invention has simple operation, flexible use and strong applicability.

Description

Combined high-temperature experimental furnace tube device

Technical Field

The invention belongs to the technical field of industrial equipment, and particularly relates to a furnace tube device of a combined high-temperature experimental furnace.

Background

The high-temperature experimental furnace device is an indispensable high-temperature heating device for material treatment such as powder roasting, ceramic sintering, high-temperature experiment and the like, and has the advantages of high temperature control precision, good heat preservation effect, large temperature range, high temperature uniformity of a hearth and the like. The traditional atmosphere furnace is characterized in that a furnace tube and a furnace chamber are movable, a plurality of crucibles or crucible boats are directly placed in the furnace tube and are unstable, and when a flange is screwed, the furnace tube is easy to rotate to cause the tipping of materials; the flange of the furnace tube gas inlet is generally of a single-opening type, and can not meet the requirement that one furnace tube is simultaneously filled with multiple gases; when experimental conditions need incessant different gas that lets in, a kind of intake pipe need be dismantled to traditional boiler tube, installs another kind of intake pipe again, and external gas can enter into the boiler tube when changing the intake pipe in, and the temperature in the boiler tube also can receive the influence of different degrees simultaneously to influence the calcination result of material, not only troublesome poeration, also relatively consuming time.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a combined high-temperature experimental furnace tube device, which solves the problems that the furnace tube in the traditional high-temperature tube furnace tube device is closed, the material is difficult to store and take, and the gas is single and various gases cannot be introduced during roasting.

In order to achieve the purpose, the invention adopts the technical scheme that:

a combined furnace tube device of a high-temperature experimental furnace comprises a furnace body, wherein a furnace chamber is arranged in the furnace body, and a furnace tube is arranged in the furnace chamber; a circle of resistance wire is arranged in the middle section of the furnace chamber; one end of the furnace tube is connected with an air inlet flange, and the other end of the furnace tube is connected with an air outlet flange; the butt joint of the air inlet flange and the air outlet flange and the openings at the two ends of the furnace tube is provided with a fire blocking brick.

The gas inlet flange is formed by connecting a flange A at the tail end of the furnace tube with a flange B provided with a gas inlet; the air outlet flange is formed by connecting a flange A at the other end of the furnace tube with a flange C provided with an air outlet.

The flange plates A are tightly fixed at the two tail ends of the furnace tube.

The flange A and the flange B are fastened through bolts; the flange A and the flange C are fastened through bolts.

At least two air inlets are arranged on the flange plate B; one air outlet is arranged on the flange plate C.

And a pneumatic valve is arranged on the air outlet.

The furnace tube is formed by combining two semicircular tube grooves A and B.

The middle section of the pipe groove A is a hollow semicircle, two ends of the pipe groove A are integral pipe rings, and the length of the hollow semicircle is smaller than that of the furnace body; hollow clamping grooves are formed in the two ends of the pipe groove A inwards along the circular direction, the circular depth of each clamping groove is 1/6-1/4 of the circular depth of the pipe groove A, and the opening width of each clamping groove is smaller than the pipe thickness of the pipe groove A; two sides of the diameter position of the upper end of the pipe groove A extend to the center of the circle of the pipe groove A along the inner wall of the pipe groove A to form fixed guide plates, and the thickness center of each guide plate is flush with the top edge of the pipe groove; the sliding clamping plate is matched with the plug pin of the guide plate through a clamping plate groove to be connected with the pipe groove A, a crucible boat groove or a crucible groove is arranged on the sliding clamping plate, and the clamping plate groove is positioned in the edges of the two sides of the sliding clamping plate along the length direction;

the two ends of the pipe groove B are provided with clamping pieces along the annular direction, and the annular depth, the thickness and the length of the clamping pieces are matched and matched with the clamping grooves; the middle section of the outer wall of the pipe groove B is provided with a hollow handle.

The opening width of the clamping plate groove is matched with the thickness of the guide plate; the depth of the clamping plate groove is matched with the width of the guide plate; the size and number of the crucible grooves can be set to different models, which can be matched with the size of the crucible, and the size and number of the crucible boat grooves can be set to different models, which can be matched with the size of the crucible boat.

And a ceramic fiber sealing gasket matched with the clamping groove is arranged in the clamping groove.

The invention has the beneficial effects that:

the sliding clamping plate arranged on the combined high-temperature experimental furnace tube device can change the model at any time according to different materials to be roasted, a crucible (crucible boat) is more stably placed in a crucible boat groove (crucible groove), the practicability is high, and the usability is more flexible; the furnace tube consists of an upper part and a lower part, two open sections of the furnace tube are arranged, so that a crucible boat (crucible) can be conveniently and directly placed on the sliding clamping plate, the operation is simple, and materials are easy to place and take before and after roasting; be equipped with a plurality of air inlets on the flange that admits air, not only can satisfy simultaneously let in multiple gas, also can satisfy the incessant requirement of letting in different gas, also improved operating efficiency greatly when simple operation, save time. The pneumatic valve of the invention improves the safety, saves manpower and adjusts the pressure in the furnace tube in real time, and is simple and convenient to operate.

Drawings

FIG. 1 is a schematic structural diagram of a furnace tube apparatus of a combined high-temperature experimental furnace according to the present invention;

FIG. 2 is a schematic structural diagram of a furnace tube in the furnace tube apparatus of the combined high-temperature experimental furnace of the present invention;

FIG. 3 is a schematic structural diagram of a sliding clamp plate in a furnace tube device of a combined high-temperature experimental furnace according to the present invention.

In the figure, 1 is a furnace body, 2 is a furnace chamber, 3 is a furnace tube, 4 is a tube groove A, 5 is a clamping groove, 6 is a ceramic fiber sealing gasket, 7 is a guide plate, 8 is a tube groove B, 9 is a card, 10 is a resistance wire, 11 is a fire blocking brick, 12 is an air inlet flange, 13 is a flange plate A, 14 is a flange plate B, 15 is an air inlet, 16 is an air outlet flange, 17 is a flange plate C, 18 is an air outlet, 19 is a pneumatic valve, 20 is a sliding clamping plate, 21 is a clamping plate groove, 22 is a crucible boat groove, 23 is a crucible groove, and 24 is a hollow handle.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

As shown in fig. 1, the furnace comprises a furnace body 1, wherein a furnace chamber 2 is arranged in the furnace body 1, a furnace tube 3 is arranged in the furnace chamber 2, a circle of resistance wire 10 is arranged in the middle section of the furnace chamber 2, the furnace tube 3 uniformly extends out of two sides of the furnace body 1, fire blocking bricks 5 are respectively arranged at openings at two ends of the furnace tube 3, one end of the furnace tube 3 is connected with an air inlet flange 12, an air inlet 15 is arranged on the air inlet flange 12, the other end of the furnace tube 3 is connected with an air outlet flange 16, an air outlet 18 is arranged on;

the gas inlet flange 12 consists of a flange A13 at the tail end of the furnace tube 3 and a flange B14 provided with gas inlets 18, and at least two gas inlets 15 are arranged on the flange B14; the air outlet flange 16 consists of a flange A13 at the other end of the furnace tube 3 and a flange C17 provided with an air outlet 18, one air outlet 18 is arranged on the flange C17, and the flange A13 is tightly fixed at the two ends of the furnace tube 3; the flange A13 and the flange B14 are fastened through bolts; the flange A13 and the flange C17 are fastened through bolts.

As shown in fig. 2 and 3, the furnace tube 3 is formed by combining two hollow semicircular tube grooves a4 and a tube groove B8; hollow clamping grooves 5 are inwards arranged at two ends of the pipe groove A4 along the circular direction, a ceramic fiber sealing gasket 6 matched with the clamping grooves 5 is arranged in the clamping grooves 5, the circumferential depth of the clamping grooves 5 is about 1/6-1/4 of the circumferential depth of the pipe groove A4, and the opening width of the clamping grooves 5 is smaller than the pipe thickness of the pipe groove A4; the two ends of the pipe groove B8 are provided with clamping pieces 9 along the circular direction, and the circumferential depth, the thickness and the length of the clamping pieces 9 are matched and matched with the clamping groove 5. The middle section of the outer wall of the pipe groove B8 is provided with a hollow handle 24.

The middle section of the pipe groove A4 is a hollow semicircle, the two ends of the pipe groove A4 are integral pipe rings, the length of the hollow semicircle is smaller than that of the furnace body 1, the guide plate 7 extends to the circle center direction of the pipe groove A4 along the two sides of the diameter of the pipe groove A4, and the thickness center of the guide plate 7 is flush with the top edge of the diameter opening of the pipe groove A4.

A sliding clamping plate 20 is arranged in the pipe groove A4, and a crucible boat groove 22 or a crucible groove 23 is arranged on the sliding clamping plate 20; the sliding clamping plate 20 is provided with clamping plate grooves 21 inwards along the edges of two sides in the length direction, and the opening width of the clamping plate grooves 21 is matched with the thickness of the guide plate 7; the depth of the clamping plate groove 21 is matched with the width of the guide plate 7.

The sliding clamping plate 20 arranged in the pipe groove A4 is connected with the guide plate 7 of the pipe groove A4 through a clamping plate groove 21, the crucible boat groove 22 or the crucible groove 23 is arranged on the sliding clamping plate 20, and the clamping plate groove 21 is positioned in the two side edges of the sliding clamping plate 20 along the length direction

Wherein the size and number of the crucible slots 23 can be set to different models, which can be matched with the size of the crucible, and the size and number of the crucible boat slots 22 can be set to different models, which can be matched with the size of the crucible boat.

The use method based on the device comprises the following steps:

when the sliding clamp plate 20 is not used, the cover of the furnace body 1 is firstly opened to be convenient for seeing the furnace cavity 2 in the furnace body 1 and facilitating the disassembly of the furnace tube 3, the handle 24 is grasped to draw the clamping sheet 9 of the tube groove B8 out of the clamping groove 5 of the tube groove A4, the furnace tube 3 can be separated, the material to be baked is placed in the tube groove 4, then the clamping sheet 9 of the tube groove B8 is inserted into the clamping groove 5 of the tube groove A4, so that a closed integral furnace tube 3 is formed, the cover of the furnace body 1 is closed (when the sliding clamp plate 20 is needed, the flange C17 on the air outlet flange 16 is firstly detached from the furnace tube 3, the fire-blocking brick 11 is taken out, the tube groove B8 is drawn out of the tube groove A4, the clamp plate groove 21 on the sliding clamp plate 20 with the needed type is inserted into the tube groove A4 along the guide plate 7, the cover of the furnace body 1 is covered, the fire-blocking brick 11 is plugged into the furnace tube, the flange C17 and the flange A13 are fastened on the furnace tube 3 through bolts). When more than two different atmospheres need to be introduced during roasting, corresponding atmosphere pipes are arranged on different air inlets 15, then the aeration is started simultaneously (when more than two different atmospheres need to be introduced during roasting continuously but not simultaneously, corresponding atmosphere pipes are arranged on different air inlets 15, then one gas is introduced firstly, the gas is closed after the time is over, the other air inlet 15 is directly opened, the aeration is started), then the heating is started, the heating is finished, when the pressure in the furnace tube 3 is increased, the pneumatic valve 19 moves towards the opening direction, so that the area of the air outlet 18 is increased, and the pressure in the furnace tube 3 is gradually reduced and tends to be stable; conversely, when the air pressure in the furnace tube 3 decreases, the pneumatic valve 19 is operated in the closing direction, so that the area of the air outlet 18 decreases, and the air pressure in the furnace tube 3 gradually increases and becomes stable.

When the combined high-temperature experimental furnace tube device is used, through the mode, the flange plate B14 in the combined high-temperature experimental furnace tube device is provided with the plurality of air inlets 15, so that not only can a plurality of gases be simultaneously introduced into one furnace tube 3, but also the requirement of uninterruptedly introducing different gases can be met, and the operation efficiency is greatly improved while the operation is simple and the time is saved; the arrangement that the furnace tube 3 is divided into the tube groove A4 and the tube groove B8 in an up-and-down two-section manner not only facilitates the direct access of the roasting material in the furnace tube 3, but also saves the trouble of detaching the air outlet flange 16 when the sliding clamping plate 20 is not needed, has simple operation and is easy to access the material; the pneumatic valve 19 improves the safety and solves the problem of manually adjusting the internal pressure of the furnace tube in real time.

Claims

1. A combined furnace tube device of a high-temperature experimental furnace comprises a furnace body (1), and is characterized in that a furnace chamber (2) is arranged in the furnace body (1), and a furnace tube (3) is arranged in the furnace chamber (2); a circle of resistance wire (10) is arranged at the middle section of the furnace chamber (2); one end of the furnace tube (3) is connected with an air inlet flange (12), and the other end is connected with an air outlet flange (16); the butt joint of the air inlet flange (12) and the air outlet flange (16) with the openings at the two ends of the furnace tube (3) is provided with a fire blocking brick (11).

2. The furnace tube device of the combined high-temperature experimental furnace of claim 1, wherein the gas inlet flange (12) is formed by connecting a flange A (13) at the tail end of the furnace tube (3) with a flange B (14) provided with a gas inlet (15); the air outlet flange (16) is formed by connecting a flange A (13) at the other end of the furnace tube (3) with a flange C (17) provided with an air outlet (18).

3. The furnace tube device of combined high-temperature laboratory furnace according to claim 2, characterized in that said flanges A (13) are tightly fixed at both ends of the furnace tube (3).

4. The furnace tube device of the combined high-temperature experimental furnace of claim 2, wherein the flange A (13) and the flange B (14) are fastened by bolts; the flange A (13) and the flange C (17) are fastened through bolts.

5. The furnace tube device of the combined high-temperature experimental furnace according to claim 2, wherein at least two air inlets (15) are arranged on the flange B (14); one air outlet (18) is arranged on the flange plate C (17).

6. The furnace tube device of combined high temperature laboratory furnace according to claim 2, characterized in that the air outlet (18) is provided with a pneumatic valve (19).

7. The furnace tube device of the combined high-temperature experimental furnace of claim 1, wherein the furnace tube (3) is formed by combining two semicircular tube grooves A (4) and B (8).

8. The furnace tube device of the combined high-temperature experimental furnace of claim 7, wherein the middle section of the tube groove A (4) is a hollow semicircle, both ends of the tube groove A are integral tube rings, and the length of the hollow semicircle is smaller than that of the furnace body (1); hollow clamping grooves (5) are inwards arranged at two ends of the pipe groove A (4) along the circular direction, the circumferential depth of each clamping groove (5) is 1/6-1/4 of the circumferential depth of the pipe groove A (4), and the opening width of each clamping groove (5) is smaller than the pipe thickness of the pipe groove A (4); two sides of the diameter position of the upper end of the pipe groove A (4) extend to fix the guide plate (7) along the inner wall of the pipe groove A (4) to the circle center direction of the pipe groove A (4), and the thickness center of the guide plate (7) is flush with the top edge of the pipe groove; the sliding clamping plate (20) is matched with the bolt of the guide plate (7) through a clamping plate groove (21) to be connected with a pipe groove A (4), a crucible boat groove (22) or a crucible groove (23) is arranged on the sliding clamping plate (20), and the clamping plate groove (21) is positioned in the edges of two sides of the sliding clamping plate (20) along the length direction;

the two ends of the pipe groove B (8) are provided with clamping pieces (9) along the annular direction, and the annular depth, thickness and length of the clamping pieces (9) are matched and matched with the clamping groove (5); the middle section of the outer wall of the pipe groove B is provided with a hollow handle (24).

9. The furnace tube device of the combined high-temperature laboratory furnace according to claim 8, wherein the width of the opening of the splint slot (21) is matched with the thickness of the guide plate (7); the depth of the clamping plate groove (21) is matched with the width of the guide plate (18); the size and number of the crucible slots (22) can be set to different models, which can be matched with the size of the crucible, and the size and number of the clamping plate slots (21) can be set to different models, which can be matched with the size of the crucible boat.

10. The furnace tube device of combined high-temperature experimental furnace according to claim 8, wherein a ceramic fiber sealing gasket (6) matched with the clamping groove (5) is arranged in the clamping groove (5).