CN220912002U

CN220912002U - Refractoriness test furnace

Info

Publication number: CN220912002U
Application number: CN202322415084.2U
Authority: CN
Inventors: 黄少平; 杨红伟; 王澎; 李丰; 张灿; 张雪琪; 黄烁霖; 李保阳
Original assignee: LUOYANG PRECONDAR INSTRUMENTS FOR TESTING REFRACTORINESS CO Ltd
Current assignee: LUOYANG PRECONDAR INSTRUMENTS FOR TESTING REFRACTORINESS CO Ltd
Priority date: 2023-09-06
Filing date: 2023-09-06
Publication date: 2024-05-07
Anticipated expiration: 2033-09-06

Abstract

The utility model relates to the field of refractoriness testing of inorganic nonmetallic materials, in particular to a refractoriness testing furnace, which comprises a control cabinet, a furnace body, a movable furnace bottom assembly, a furnace shell, a shell support, a lifting rotating mechanism, a thermocouple, a heating body, a sample cone and a support rod assembly, wherein the control cabinet is arranged at the side surface of the shell support, the furnace shell and the lifting rotating mechanism are arranged on the shell support, the movable furnace bottom assembly and the support rod assembly are arranged on the lifting rotating mechanism, a heat-resistant furnace body is arranged in the furnace shell, the bottom of the furnace body is a fixed furnace bottom, a furnace chamber is arranged in the furnace body, the whole structure is scientific in design, the installation operation and the use are simple and convenient, the furnace bottom mainly consists of the movable furnace bottom and the fixed furnace bottom, the furnace bottom opening is good in heat insulation and air tightness, and a maintainer can conveniently maintain the furnace chamber.

Description

Refractoriness test furnace

Technical Field

The utility model relates to the field of refractoriness testing of inorganic nonmetallic materials, in particular to a refractoriness test furnace.

Background

The refractory material is an inorganic nonmetallic material with the refractoriness of not lower than 1580 ℃, the refractoriness refers to the temperature of a conical body sample of the refractory material which resists the action of high temperature without softening and melting down under the condition of no load, the refractoriness is an important physical index of the inorganic nonmetallic material, the index plays a key guiding role in the production and application of the inorganic nonmetallic material, especially the refractory material, therefore, each research or unit for producing the refractory material widely carries out the refractoriness test, the refractoriness test furnace is a furnace body structure for carrying out the refractoriness test on the refractory material, the prior art has the following defects that in order to introduce the frustum into a furnace cavity and conveniently place the frustum, the frustum is usually provided with a round hole at the furnace bottom, and the frustum is driven by a lifting mechanism along with a supporting cylinder to enter and exit the furnace cavity from the round hole at the furnace bottom, but the method has the following defects:

1. Gaps are reserved between the lifting cylinder and the round hole of the furnace bottom so as to facilitate the frustum to smoothly enter and exit the furnace, and cold air can directly reach the frustum due to the through gaps, so that unstable temperature in the furnace is caused, meanwhile, energy consumption is increased, and direct heat radiation can cause adverse effects such as overheating of metal elements at the bottom of the supporting cylinder;

2. When the heating element is broken in the hearth in use, the broken part is difficult to be taken out for maintenance due to the limit of the inlet space and the outlet space, so that the maintenance time is greatly prolonged, and the subsequent test operation is directly influenced.

Disclosure of Invention

The utility model aims to provide a refractoriness test furnace, which has scientific overall structural design and simple and convenient installation, operation and use, wherein the furnace bottom mainly comprises a movable furnace bottom and a fixed furnace bottom assembly, the furnace bottom has better heat insulation and air tightness, a support rod assembly arranged on the separated movable furnace bottom assembly can rotate, and a fixed furnace bottom opening can enable maintenance personnel to conveniently maintain a furnace chamber.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The utility model provides a refractoriness test stove, which comprises a control cabinet, the furnace body, move the stove bottom and close the piece, the stove outer covering, the casing supports, lifting rotary mechanism, the thermocouple, the heat-generating body, sample cone and supporting rod close the piece, the switch board is installed in casing supports side position, install stove outer covering and lifting rotary mechanism on the casing supports, move stove bottom and supporting rod and close the piece and install on lifting rotary mechanism, install heat-resisting furnace body in the stove outer covering, the furnace bottom is fixed stove bottom, seted up furnace in the furnace, thermocouple and heat-generating body are installed in furnace, it has the first ladder cavity that the fit moves the stove bottom to close the piece to coincide to install to process in furnace downside, move the stove bottom to close the piece and coincide to be ladder-shaped between piece and the fixed stove bottom, it is equipped with the second ladder cavity to move the stove bottom to close the piece to install and arrange in the second ladder cavity and be ladder-shaped to coincide with moving between the stove bottom.

Furthermore, the gap between the movable furnace bottom assembly and the fixed furnace bottom adopts a stepped retraction design from bottom to top.

Furthermore, the gap between the support rod assembly and the movable furnace bottom assembly adopts a stepped retraction design from top to bottom.

Further, a sealing ring is arranged between the lifting rotating mechanism and the lower side of the supporting rod assembly, and the sealing ring seals the lifting rotating mechanism and the supporting rod assembly.

Further, dark holes are formed in two sides of the fixed furnace bottom hearth, and heat-resistant glass convenient to monitor is arranged at the end parts of the dark holes; the upper part of the control cabinet is provided with a supporting rod, the supporting rod is caught up with a monitoring camera, and the monitoring camera can monitor the state of a sample cone in the fixed furnace bottom through the heat-resistant glass.

The movable furnace bottom assembly comprises a movable furnace base and a movable furnace bottom heat-resistant lining, wherein the lower part of the movable furnace base is arranged on a lifting rotating mechanism, the movable furnace bottom heat-resistant lining is arranged on the movable furnace base, the movable furnace bottom heat-resistant lining adopts a stepped retraction design from bottom to top, a second stepped cavity is formed in the movable furnace bottom heat-resistant lining, and a sealing piece for sealing between the movable furnace base and the fixed furnace bottom is arranged on the movable furnace base.

The support rod assembly comprises a connecting rod, a support rod body, a conical disc seat and a test conical disc, wherein the bottom of the connecting rod is arranged on a lifting rotating mechanism, the support rod body is arranged on the connecting rod and fixedly connected with the connecting rod into a whole, the conical disc seat is arranged at the top of the support rod body, the test conical disc for bearing a sample cone is arranged on the conical disc seat and fixedly connected with the conical disc seat, and the second step cavity is in step anastomosis with the support rod body.

The support rod assembly comprises a support rod body, a conical disc seat and a test conical disc, wherein the bottom of the support rod body is installed on the lifting rotating mechanism and is connected with the power output end of the lifting rotating mechanism, the conical disc seat is installed at the top of the support rod body, the test conical disc for bearing the sample cone is installed on the conical disc seat and is fixedly connected with the conical disc seat, and the second step cavity is in step fit with the support rod body and the conical disc seat.

Further, the upper surface of the support rod body is larger than the area of the conical disc seat, and the bottom opening area of the first ladder cavity formed in the lower side of the hearth is larger than phi 60mm, so that hands can conveniently enter the hearth for maintenance.

The lifting rotating mechanism comprises a speed reducer, a positioner, a lifting support and a lifter, wherein the lifter is arranged on a shell support, the lifting support is arranged at the lifting working position of the lifter, the speed reducer is arranged on the lifting support and fixedly arranged with the lifting support, the positioner is arranged on the speed reducer, and a movable furnace bottom assembly is arranged at the power output end of the speed reducer.

The beneficial effects of the utility model are as follows: compared with the existing refractoriness test furnace for refractory material tests, the refractoriness test furnace has the advantages of good sealing effect and convenience in maintenance, and particularly, the movable furnace base is provided with the sealing element for sealing the movable furnace base and the fixed furnace bottom, meanwhile, the sealing ring for sealing the lifting rotating mechanism and the support rod assembly is arranged between the lifting rotating mechanism and the lower side of the support rod assembly, and meanwhile, the fixed furnace bottom, the movable furnace bottom assembly and the support rod assembly are in stepped retraction design, so that the sealing effect between the movable furnace bottom assembly and the fixed furnace bottom and between the movable furnace bottom assembly and the support rod assembly can be effectively ensured, heat radiation loss is avoided, and the stability of test temperature is ensured; meanwhile, the opening area of the first ladder cavity formed in the lower side of the hearth is larger than phi 60mm, so that hands can conveniently enter the hearth to carry out maintenance operation.

Drawings

FIG. 1 is a schematic view of a mounting assembly of a refractoriness testing furnace according to the present utility model;

FIG. 2 is a schematic diagram of a second installation assembly structure of the refractoriness testing furnace of the present utility model;

FIG. 3 is a schematic view of a moving hearth assembly and support bar assembly according to one embodiment of the present utility model;

FIG. 4 is a schematic diagram of a moving hearth assembly and support bar assembly according to the present utility model;

FIG. 5 is a schematic view of the elevating rotation mechanism according to the present utility model;

the reference numerals in the figures are: the device comprises a control cabinet, a 2-camera, 3-heat-resistant glass, a 4-thermocouple, a 5-furnace shell, a 6-heating body, a 7-sample cone, an 8-test cone disc, a 9-blind hole, a 10-cone seat, an 11-support rod body, a 12-bottom gap, a 13-fixed furnace bottom, a 14-support rod rotating gap, a 15-movable furnace bottom heat-resistant lining, a 16-movable furnace base, a 17-sealing ring, a 18-connecting rod, a 19-positioner, a 20-speed reducer, a 21-lifting support, a 22-lifter and a 23-furnace body.

Detailed Description

In order to make the technical solution of the present utility model better understood by those skilled in the art, the present utility model is further described in detail below with reference to the drawings and the detailed description, and it should be noted that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly or indirectly connected to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "left" and "right" used in the present document to indicate orientation are each based on the specific structure shown in the drawings, and do not constitute a limitation on the structure.

Specific example 1: as shown in the specification attached to figure 1 and the specification attached to figure 2, the refractoriness test furnace mainly comprises a control cabinet 1, a furnace body, a movable furnace bottom assembly, a furnace shell 5, a shell support, a lifting rotating mechanism, a thermocouple 4, a heating body 6, a sample cone 7 and a support rod assembly, wherein the control cabinet 1 is used for controlling the operation of the lifting rotating mechanism, the thermocouple 4, the heating body 6 and other components, when the control cabinet is installed, the control cabinet 1 is installed at the side surface of the shell support, the furnace shell 5 and the lifting rotating mechanism are installed on the shell support, the furnace shell 5 is used for installing and placing a fixed furnace bottom 13, the lifting rotating mechanism is used for driving the movable furnace bottom assembly to lift and driving the support rod assembly to rotate, when the control cabinet is installed, the movable furnace bottom assembly and the support rod assembly are installed on the lifting rotating mechanism, and a heat-resistant furnace body 23 is installed in the furnace shell 5, the bottom of the furnace body 23 is a fixed furnace bottom 13, a furnace chamber is arranged in the furnace body 23, a thermocouple 4 and a heating body 6 for test heating are arranged in the furnace chamber, a first ladder cavity matched with a movable furnace bottom assembly is processed at the lower side of the furnace chamber, the anastomosis between the movable furnace bottom assembly and the fixed furnace bottom 13 is a ladder type, meanwhile, a second ladder cavity is arranged in the movable furnace bottom assembly, a supporting rod assembly is arranged in the second ladder cavity and is in ladder type anastomosis with the movable furnace bottom assembly, it is pointed out that, in order to ensure the sealing effect, a ladder type retraction design is adopted from bottom to top in a gap between the movable furnace bottom assembly and the fixed furnace bottom 13, a ladder type retraction design is adopted from top to bottom in a gap between the supporting rod assembly and the movable furnace bottom assembly, a sealing ring 17 is arranged between a lifting rotating mechanism and the lower side of the supporting rod assembly, the sealing ring 17 seals the lifting and rotating mechanism and the supporting rod assembly.

Furthermore, in order to monitor the whole test process, dark holes 9 are formed on two sides of a hearth of the fixed furnace bottom 13, and heat-resistant glass 3 convenient to monitor is arranged at the end part of the dark holes 9; a supporting rod is arranged at the upper part of the control cabinet 1, a monitoring camera 2 is arranged on the supporting rod, and in the test process, the monitoring camera 2 can monitor the state of a sample cone 7 in the fixed furnace bottom 13 through the heat-resistant glass 3.

As shown in fig. 3 of the specification of the utility model, the movable furnace bottom assembly matched with the fixed furnace bottom 13 in the utility model comprises a movable furnace base 16 and a movable furnace bottom heat-resistant lining 15, wherein the movable furnace base 16 is used for carrying out installation and supporting operation on the movable furnace bottom heat-resistant lining 15, the lower part of the movable furnace base 16 is arranged on a lifting and rotating mechanism, the movable furnace bottom heat-resistant lining 15 is arranged on the movable furnace base 16, the movable furnace bottom heat-resistant lining 15 adopts a stepped retraction design from bottom to top, a second step cavity matched with the installation and arrangement of the supporting rod assembly is processed on the movable furnace bottom heat-resistant lining 15, and a sealing element for sealing between the movable furnace base 16 and the fixed furnace bottom 13 is arranged on the movable furnace base 16.

As shown in fig. 3 of the specification of the present utility model, the support rod assembly for carrying and driving the sample cone 7 to rotate includes a connecting rod 18, a support rod body 11, a cone disc seat 10 and a test cone disc 8, wherein the connecting rod 18 is used for carrying out installation and driving support on the support rod body 11, during installation, the bottom of the connecting rod 18 is installed on the lifting rotation mechanism, the support rod body 11 for carrying the cone disc seat 10 is installed on the connecting rod 18 and fixedly connected with the connecting rod 18 into a whole, the cone disc seat 10 is installed at the top of the support rod body 11, the test cone disc 8 for carrying the sample cone 7 is installed on the cone disc seat 10 and fixedly connected with the cone disc seat 10, and it should be pointed out that the second step cavity is in step fit with the support rod body 11, the upper surface of the support rod body 11 is larger than the area of the cone disc seat 10, and the bottom opening area of the first step cavity opened at the lower side of the hearth is larger than phi 60mm, so as to facilitate the human hand to enter the hearth for maintenance.

As shown in figure 5 of the specification, the lifting and rotating mechanism for driving the movable furnace bottom assembly to lift and driving the supporting rod assembly to rotate comprises a speed reducer 20, a positioner 19, a lifting support 21 and a lifter 22, wherein the lifter 22 is used for driving the lifting support 21 to realize lifting action, the speed reducer 20 is used for driving the movable furnace bottom assembly to rotate, the lifter 22 is arranged on a shell support during installation, the lifting support 21 is arranged at a lifting working position of the lifter 22, the lifting support 21 is used for carrying out installation support on the speed reducer 20, the speed reducer 20 is arranged on the lifting support 21 and fixedly arranged with the lifting support 21 during installation, the positioner 19 is arranged on the speed reducer 20, and the movable furnace bottom assembly is arranged at a power output end of the speed reducer 20.

The installation and use process of the refractoriness test furnace in specific installation and use is as follows: firstly, the separated furnace bottom of the furnace bottom separated refractoriness test furnace is composed of a fixed furnace bottom 13 and a movable furnace bottom combined part, the movable furnace bottom combined part can enter the fixed furnace bottom 13 under the drive of a lifter 22 in a lifting rotating mechanism, meanwhile, a reducer 20 in the lifting rotating mechanism can drive a supporting rod combined part to rotate in a furnace cavity of the fixed furnace bottom 13, in order to reduce the influence of radiation, the anastomosis between the movable furnace bottom combined part of the separated furnace bottom and the fixed furnace bottom 13 and between the movable furnace bottom combined part and the supporting rod combined part is in a stepped type, a movable furnace bottom heat-resistant lining 15 adopts a stepped type retracting design from bottom to top, a conical disc seat 10 for bearing a conical disc 8 is placed above a supporting rod body 11, the upper surface of the supporting rod body 11 is larger than the area of a conical disc, the opening area of the lower part of a first stepped cavity formed in the fixed furnace bottom 13 is larger than phi 60mm, so as to facilitate the manual maintenance personnel to enter the furnace cavity, the bottom of the movable furnace bottom heat-resistant lining 15 is fixedly arranged on a movable furnace base 16 of metal, a sealing member is arranged on the movable furnace base 16, a sealing member is arranged between the lifting rotating mechanism and the supporting rod combined part and the supporting rod is provided with a sealing ring 17. In the use process, the lower part of the supporting rod assembly is connected with the driving end part of the speed reducer 20 in the lifting rotating mechanism and can rotate along with the speed reducer 20 in the lifting rotating mechanism, so that the conical disc seat 10 is driven to rotate, and the test conical disc 8 and the test sample cone 7 placed on the conical disc seat 10 are uniformly rotated and heated.

Specific example 2: in order to make the present utility model have a more sufficient structural design, on the basis of the above embodiment 1, as shown in fig. 2 and 4 of the specification of the present utility model, this embodiment provides another support bar assembly structure different from that of embodiment 1, specifically as follows: the support rod assembly for bearing and driving the sample cone 7 to rotate comprises a support rod body 11, a cone disc seat 10 and a test cone disc 8, wherein the support rod body 11 is used for carrying out installation support on the cone disc seat 10, when the support rod is installed, the bottom of the support rod body 11 is installed on a lifting rotating mechanism and is connected with the power output end of the lifting rotating mechanism, the cone disc seat 10 is installed at the top of the support rod body 11, the test cone disc 8 for bearing the sample cone 7 is installed on the cone disc seat 10 and is fixedly connected with the cone disc seat 10, and a step anastomosis is formed between a second step cavity and the support rod body 11 and the cone disc seat 10.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. The utility model provides a refractoriness test stove, a serial communication port, including switch board (1), furnace body (23), move stove bottom and close the piece, stove outer covering (5), the casing supports, lift rotary mechanism, thermocouple (4), heat-generating body (6), sample cone (7) and support stick close the piece, switch board (1) are installed in casing support side position, install stove outer covering (5) and lift rotary mechanism on the casing supports, move stove bottom and support stick and close the piece and install on lift rotary mechanism, install heat-resisting furnace body in stove outer covering (5), furnace body (23) bottom is fixed stove bottom (13), offer furnace in furnace body (23), thermocouple (4) and heat-generating body (6) are installed in the furnace, it has first ladder cavity to process in the furnace downside, move the stove bottom and close coincide between piece and be ladder-like to be equipped with the second ladder cavity in moving stove bottom and close the piece, support stick closes the piece to install and arrange in the second ladder cavity and be ladder-like to coincide with moving between the stove bottom and close the piece.

2. A refractoriness testing furnace according to claim 1, characterized in that the gap between the moving hearth assembly and the fixed hearth (13) is of stepped setback design from bottom to top.

3. The fire resistance test furnace according to claim 2, wherein the gap between the support rod assembly and the movable furnace bottom assembly is designed by adopting a stepped retraction from top to bottom.

4. A refractoriness testing furnace according to claim 3, characterized in that a sealing ring (17) is mounted between the lifting and rotating mechanism and the underside of the support rod assembly, said sealing ring (17) sealing the lifting and rotating mechanism and the support rod assembly.

5. The refractoriness testing furnace according to claim 4, wherein the movable furnace bottom assembly comprises a movable furnace base (16) and a movable furnace bottom heat-resistant lining (15), the lower part of the movable furnace base (16) is arranged on the lifting rotating mechanism, the movable furnace bottom heat-resistant lining (15) is arranged on the movable furnace base (16), the movable furnace bottom heat-resistant lining (15) adopts a stepped retraction design from bottom to top, a second stepped cavity is formed in the movable furnace bottom heat-resistant lining (15), and a sealing piece for sealing between the movable furnace base (16) and the fixed furnace bottom (13) is arranged on the movable furnace base (16).

6. The refractoriness testing furnace according to claim 5, wherein the supporting rod assembly comprises a connecting rod (18), a supporting rod body (11), a conical disc seat (10) and a testing conical disc (8), wherein the bottom of the connecting rod (18) is installed on the lifting rotating mechanism, the supporting rod body (11) is installed on the connecting rod (18) and fixedly connected with the connecting rod (18) into a whole, the conical disc seat (10) is installed at the top of the supporting rod body (11), the testing conical disc (8) is installed on the conical disc seat (10) and fixedly connected with the conical disc seat (10), and the second step cavity is in step fit with the supporting rod body (11).

7. The refractoriness testing furnace according to claim 5, wherein the supporting rod assembly comprises a supporting rod body (11), a conical disc seat (10) and a test conical disc (8), wherein the bottom of the supporting rod body (11) is installed on the lifting rotating mechanism and is connected with the power output end of the lifting rotating mechanism, the conical disc seat (10) is installed at the top of the supporting rod body (11), the test conical disc (8) for bearing the sample cone (7) is installed on the conical disc seat (10) and is fixedly connected with the conical disc seat (10), and the second step cavity is in step fit with the supporting rod body (11) and the conical disc seat (10).

8. The refractoriness testing furnace according to claim 6, further characterized in that the upper surface of the supporting rod body (11) is larger than the area of the conical disc seat (10), and the bottom opening area of the first step cavity formed on the lower side of the hearth is larger than phi 60mm.