阅读说明：本技术 一种用于材料检测的燃烧炉 (Combustion furnace for material detection ) 是由 刘伟 刘佩勇 于 2018-07-11 设计创作，主要内容包括：本发明中公开了一种用于材料检测的燃烧炉,包括炉头和炉体,所述炉头设置在炉体上方,所述炉头和炉体构成开口朝下设置的封闭腔体结构,炉体外缠绕设置有感应加热线圈；所述炉体下端设置有炉座,炉座上设置有与炉体连通的出气通道；所述炉体下方设置有底座,底座上设置有坩埚托架,坩埚托架用于设置坩埚,所述底座可上下运动将坩埚送入到炉体内,所述底座在将坩埚送入到炉体内的同时对炉体下端开口形成封堵。该燃烧炉结构简单,采用感应加热线圈实现对坩埚内样品的加热,在对坩埚进行加热的同时,在坩埚上方设置发热体陶瓷,实现对坩埚内样品的全方位加热,使样品能得到充分的燃烧,保证了检测的精度。(The invention discloses a combustion furnace for material detection, which comprises a furnace end and a furnace body, wherein the furnace end is arranged above the furnace body, the furnace end and the furnace body form a closed cavity structure with a downward opening, and an induction heating coil is wound outside the furnace body; the lower end of the furnace body is provided with a furnace base, and the furnace base is provided with an air outlet channel communicated with the furnace body; the crucible feeding device is characterized in that a base is arranged below the furnace body, a crucible bracket is arranged on the base and used for arranging a crucible, the base can move up and down to feed the crucible into the furnace body, and the base can form plugging on an opening at the lower end of the furnace body while feeding the crucible into the furnace body. This fires burning furnace simple structure adopts induction heating coil to realize the heating to the interior sample of crucible, when heating the crucible, sets up heat-generating body pottery above the crucible, realizes the all-round heating to the interior sample of crucible, makes the sample can obtain abundant burning, has guaranteed the precision that detects.)

1. A furnace for material testing, comprising: the induction heating furnace comprises a furnace end and a furnace body, wherein the furnace end is arranged above the furnace body, the furnace end and the furnace body form a closed cavity structure with a downward opening, an induction heating coil is wound outside the furnace body, the furnace end comprises an end cover arranged at the upper end of the furnace body and a fixed seat arranged on the end cover, an air inlet valve and an air inlet channel are arranged on the fixed seat, the air inlet valve is connected to the air inlet channel, a guide rod is arranged at the lower end of the fixed seat, an air blowing channel is arranged on the guide rod and communicated with the air inlet channel, and; the lower end of the furnace body is provided with a furnace base, and the furnace base is provided with an air outlet channel communicated with the furnace body; the crucible furnace is characterized in that a base is arranged below the furnace body, a crucible bracket is arranged on the base and used for arranging a crucible, the base can move up and down to send the crucible into the furnace body, the base can form a plug for an opening at the lower end of the furnace body when sending the crucible into the furnace body, the furnace base is arranged between the furnace body and the base, a sealing mechanism capable of sealing the opening between the furnace body and the base is arranged on the furnace base, and a notch used for communicating the furnace body and an air outlet channel is formed in the end part of the lower end of the furnace body.

2. The combustion furnace for material detection as recited in claim 1, wherein: the cleaning device is characterized in that an air cylinder is arranged above the fixed seat, a guide block and a cleaning brush are sleeved on the guide rod, the cleaning brush is fixedly connected to the guide block, the guide block can slide up and down along the guide rod, the cleaning brush is matched with the inner wall of the furnace body, two guide holes are formed in the fixed seat, guide pillars are respectively arranged in the guide holes, one end of each guide pillar is connected with a piston rod of the air cylinder, and the other end of each guide pillar extends into the furnace body and is connected with the.

3. The combustion furnace for material detection as recited in claim 1, wherein: the cover plate is made of heating body ceramics.

4. The combustion furnace for material detection as recited in claim 1, wherein: the sealing mechanism comprises sealing lips which are respectively arranged at the upper end and the lower end of the inner wall of the furnace base, and sealing rings are respectively arranged in the sealing lips.

Technical Field

The invention relates to the technical field of material detection equipment, in particular to a combustion furnace for a high-frequency infrared carbon-sulfur analyzer.

Background

An infrared carbon and sulfur analyzer is a detection device for detecting the content of carbon and sulfur elements in a sample, and is widely used for detecting the carbon and sulfur elements of various materials at present. During detection, carbon and sulfur in a sample are heated at high temperature under the condition of oxygen enrichment to generate carbon dioxide and sulfur dioxide gas, the gas enters a corresponding absorption cell after being processed to absorb corresponding infrared radiation light, the absorbed infrared radiation light is incident on a detector and is converted into an electric signal by the detector, and the content of carbon and sulfur in the material can be obtained through computer processing.

When an existing infrared carbon-sulfur analyzer detects a sample, the sample to be detected needs to be placed into a crucible, and then the crucible is sent into a combustion furnace to be heated at a high temperature. The high-frequency induction heating mode is to heat a sample by generating induction current through the oscillation of a high-frequency oscillation circuit, and is widely applied to the heating of a combustion furnace for material detection at present and is a high-frequency furnace. The sample in the high-frequency furnace can be efficiently combusted, so that carbon dioxide and sulfur dioxide can be released to the maximum extent. However, the existing high-frequency furnace is complex in structure, and the sample in the crucible is heated unevenly because the sample is not placed uniformly in the crucible, so that the sample cannot be combusted sufficiently, and the measurement result is influenced.

Disclosure of Invention

The invention aims to solve the technical problems of the existing combustion furnace, and provides a combustion furnace for material detection, which adopts a high-frequency induction heating mode for heating, has a simple structure, and solves the problem of uneven heating process while realizing sufficient heating of a sample.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a combustion furnace for material detection comprises a furnace end and a furnace body, wherein the furnace end is arranged above the furnace body, the furnace end and the furnace body form a closed cavity structure with a downward opening, an induction heating coil is wound outside the furnace body, the furnace end comprises an end cover arranged at the upper end of the furnace body and a fixed seat arranged on the end cover, an air inlet valve and an air inlet channel are arranged on the fixed seat, the air inlet valve is connected to the air inlet channel, a guide rod is arranged at the lower end of the fixed seat, an air blowing channel is arranged on the guide rod and communicated with the air inlet channel, and a cover plate is fixedly arranged; the lower end of the furnace body is provided with a furnace base, and the furnace base is provided with an air outlet channel communicated with the furnace body; the crucible furnace is characterized in that a base is arranged below the furnace body, a crucible bracket is arranged on the base and used for arranging a crucible, the base can move up and down to send the crucible into the furnace body, the base can form a plug for an opening at the lower end of the furnace body when sending the crucible into the furnace body, the furnace base is arranged between the furnace body and the base, a sealing mechanism capable of sealing the opening between the furnace body and the base is arranged on the furnace base, and a notch used for communicating the furnace body and an air outlet channel is formed in the end part of the lower end of the furnace body.

In the above technical scheme, further, an air cylinder is arranged above the fixing base, a guide block and a cleaning brush are sleeved on the guide rod, the cleaning brush is fixedly connected to the guide block, the guide block can slide up and down along the guide rod, the cleaning brush is matched with the inner wall of the furnace body, two guide holes are arranged on the fixing base, guide pillars are respectively arranged in the guide holes, one end of each guide pillar is connected with a piston rod of the air cylinder, and the other end of each guide pillar extends into the furnace body and is connected with the guide block.

In the above technical solution, further, the cover plate is made of heating body ceramics.

Among the above-mentioned technical scheme, furtherly, sealing mechanism is including setting up the sealing lip at furnace base inner wall upper end and lower extreme respectively, be provided with the sealing ring in the sealing lip respectively.

The invention has the following beneficial effects: this fires burning furnace simple structure adopts induction heating coil to realize the heating to the interior sample of crucible, when heating the crucible, sets up heat-generating body pottery above the crucible, realizes the all-round heating to the interior sample of crucible, makes the sample can obtain abundant burning, has guaranteed the precision that detects.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

In the figure: 1. the furnace comprises a furnace end, 101, an end cover, 102, a fixed seat, 2, a furnace body, 201, a notch, 3, a cylinder, 4, an air inlet valve, 5, an air inlet channel, 6, a guide rod, 7, an air blowing channel, 8, a guide block, 9, a cleaning brush, 10, a cover plate, 11, a guide column, 12, an induction heating coil, 13, a crucible, 14, a crucible bracket, 15, a base, 16, a furnace seat, 17, a sealing lip, 18, a sealing ring, 19 and an air outlet channel.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments.

As shown in fig. 1, the combustion furnace for material detection in this embodiment includes a furnace head 1 and a furnace body 2, where the furnace head 1 is disposed above the furnace body 2, and the furnace head 1 and the furnace body 2 form a closed cavity structure with a downward opening.

An induction heating coil 12 is wound outside the furnace body 2, and a sample in the furnace body is heated in an induction heating mode.

The furnace end 1 comprises an end cover 101 arranged at the upper end of the furnace body 2 and a fixed seat 102 arranged on the end cover, wherein an air inlet valve 4 and an air inlet channel 5 are arranged on the fixed seat 102, and the air inlet valve 4 is connected to the air inlet channel 5. The air inlet valve is connected with oxygen, and the oxygen is conveyed to the sample in the furnace body through the air inlet valve and the air inlet channel, so that the sample can be fully combusted in an oxygen-enriched environment. In this embodiment, the cylinder 3 is arranged above the fixing seat 102, the guide rod 6 is sleeved with the guide block 8 and the cleaning brush 9, the cleaning brush 9 is fixedly connected to the guide block 8, the guide block 8 can slide up and down along the guide rod 6, the cleaning brush 9 is matched with the inner wall of the furnace body, the fixing seat 102 is provided with two guide holes, guide pillars 11 are respectively arranged in the guide holes, one end of each guide pillar 11 is connected with the piston rod of the cylinder 3, and the other end of each guide pillar 11 extends into the furnace body 2 and is connected with the guide block 8. The guide block is pushed by the cylinder to slide up and down on the guide rod, and the guide block drives the cleaning brush to clean the inner wall of the furnace body in the up-and-down sliding process. And a sealing ring is arranged between the guide pillar and the guide hole to seal the furnace body.

The lower end of the fixed seat 102 is provided with a guide rod 6, the guide rod 6 is provided with an air blowing channel 7, the air blowing channel 7 is communicated with the air inlet channel 5, and the other end of the guide rod 6 is fixedly provided with a cover plate 10. Oxygen enters the blowing channel through the air inlet channel, through holes communicated with the blowing channel are also formed in the end cover, and the oxygen enters the crucible through the through holes in the end cover to form an oxygen-enriched environment in the crucible; in this embodiment, the cover plate 10 is made of a heating element ceramic. When the sample in the crucible is heated, the cover plate covers the crucible, and when the sample is heated, the heating body ceramic is heated simultaneously to heat the sample in the crucible, so that the sample in the crucible is heated in an all-around manner, the sample in the furnace body can be heated fully and uniformly, and the sample can be combusted fully in an oxygen-enriched environment.

The lower end of the furnace body 2 is provided with a furnace base 16, the furnace base 16 is provided with an air outlet channel 19 communicated with the furnace body, the air outlet channel is transversely arranged on the furnace base, and the furnace base sleeve is arranged at the lower end of the furnace body. The crucible furnace is characterized in that a base 15 is arranged below the furnace body 2, a crucible bracket 14 is arranged on the base 15, the crucible bracket 14 is used for arranging a crucible 13, the base 15 can move up and down to send the crucible into the furnace body, the base 15 seals an opening at the lower end of the furnace body when sending the crucible into the furnace body, a furnace base 16 is arranged between the furnace body 2 and the base 15, a sealing mechanism capable of sealing the opening between the furnace body and the base is arranged on the furnace base 16, and a notch 201 used for communicating the furnace body and an air outlet channel is arranged at the end part of the lower end of the furnace body 2. At the moment, the lower end of the furnace body is sealed and sealed by the base and the furnace base, so that a sealed space is formed by the furnace body, gas and unburnt oxygen generated by the sufficient combustion of the sample in the furnace body enter the gas outlet channel through the notch on the furnace body and enter the absorption cell of the carbon-sulfur analyzer through the gas outlet channel for absorption, and the detection of the carbon and sulfur contents in the sample is realized.

Preferably, the sealing mechanism in this embodiment comprises sealing lips 17 respectively disposed at the upper end and the lower end of the inner wall of the oven base, and sealing rings 18 respectively disposed inside the sealing lips 17. The sealing ring is made of high-temperature-resistant sealing materials, the sealing ring at the upper end of the inner wall of the furnace base forms sealing with the furnace body, and the sealing ring at the lower end of the inner wall of the furnace base forms sealing with the base, so that the furnace body is well sealed through the base and the furnace base.