CN224215866U - Smelting vacuum furnace with smoke abatement mechanism - Google Patents

Abstract

This utility model relates to the field of smelting vacuum furnace technology, specifically to a smelting vacuum furnace with a smoke elimination mechanism. It includes a vacuum furnace body, with a smoke treatment mechanism installed on the outer side of the furnace body. The smoke treatment mechanism includes a first smoke outlet pipe fixedly connected to the outer wall of the furnace body, a filter box fixedly connected to the bottom end of the first smoke outlet pipe, a second smoke outlet pipe fixedly connected to the bottom end of the filter box, and a spiral heat exchange tube connected to the side of the second smoke outlet pipe away from the filter box. The spiral heat exchange tube is fixedly connected to the outer wall of the furnace body, and a condenser smoke eliminator is fixedly connected to the end of the spiral heat exchange tube away from the filter box. A conical pipe is fixedly connected to the bottom end of the condenser smoke eliminator. This utility model, through the cooperation of the vacuum furnace body and the smoke treatment mechanism, uses coarse and fine mesh filters to first filter large particles of smoke and dust, preventing the spiral heat exchange tube from clogging. The spiral heat exchange tube then conducts heat from the high-temperature flue gas to the vacuum furnace body, reducing heat waste and improving energy utilization.

Description

Smelting vacuum furnace with smoke abatement mechanism

Technical Field

The utility model relates to the technical field of smelting vacuum furnaces, in particular to a smelting vacuum furnace with a smoke abatement mechanism.

Background

In the fields of metal smelting, alloy preparation and special material processing, vacuum smelting furnaces are widely used because of the capability of effectively avoiding material oxidation and improving purity. However, conventional vacuum furnaces are prone to generate large amounts of fumes and dust during high temperature smelting, especially when processing volatile (e.g., zinc, lead, or organic) materials. The smoke not only pollutes the interior of the furnace chamber, so that the observation window is fuzzy, the sensor is misjudged, but also the smoke can enter the exhaust system along with the vacuum pump, and the filter element is easy to block or pollute the environment. In addition, particles in the fumes deposit on the inner walls of the furnace or on the electrodes, reducing the thermal efficiency and even causing the risk of short circuits.

The smelting furnace directly discharges smoke dust after filtering to easily cause heat waste, and simultaneously directly discharges smoke dust, so that gas inside the furnace body is unevenly distributed, volatile impurities are accumulated, and the service life of a vacuum pump is easily shortened.

Therefore, it is necessary to invent a melting vacuum furnace with a smoke abatement mechanism to solve the above problems.

Disclosure of utility model

The utility model aims to provide a smelting vacuum furnace with a smoke elimination mechanism, which realizes smoke elimination and gas circulation through the cooperation of a vacuum furnace body and a smoke treatment mechanism, so as to solve the problems that heat is wasted easily due to direct discharge of smoke dust after filtration, smoke is directly removed, gas in the furnace body is unevenly distributed, volatile impurities are accumulated, and the service life of a vacuum pump is easily shortened in the prior art.

In order to achieve the above purpose, the smelting vacuum furnace with the smoke elimination mechanism comprises a vacuum furnace body, a smoke treatment mechanism is arranged on the outer side of the vacuum furnace body, the smoke treatment mechanism comprises a first smoke outlet pipe fixedly connected to the outer side wall of the vacuum furnace body, a filter box is fixedly connected to the bottom end of the first smoke outlet pipe, a second smoke outlet pipe is fixedly connected to the bottom end of the filter box, a spiral heat exchange pipe is communicated with one side, far away from the filter box, of the second smoke outlet pipe, the spiral heat exchange pipe is fixedly connected to the outer side wall of the vacuum furnace body, one end, far away from the filter box, of the spiral heat exchange pipe is fixedly connected with a condensation smoke eliminator, the bottom end of the condensation smoke eliminator is fixedly connected with a conical pipeline, the bottom end of the conical pipeline is fixedly connected with an automatic valve, the bottom end of the automatic valve is fixedly connected with a soot collecting box, and through the cooperation of the filter box and other parts, the smoke with heat is enabled to provide waste heat for the vacuum furnace body through the spiral heat exchange pipe, and meanwhile, and the smoke is purified through the condensation smoke eliminator and other parts.

Preferably, the top of vacuum furnace body installs the bell, the bottom fixedly connected with base of vacuum furnace body, rose box and ash collecting box fixed connection are in the top of base, provide the support for parts such as vacuum furnace body through the base.

Preferably, the inside wall sliding connection of rose box has thick eye filter screen, the inside wall sliding connection of rose box has thin eye filter screen, thin eye filter screen is located the below of thick eye filter screen, carries out double filtration through thick eye filter screen and thin eye filter screen to large granule impurity, avoids the spiral heat exchange tube to block up.

Preferably, the outside fixedly connected with filter tube of condensation smoke suppressor, the top fixedly connected with transfer jar of filter tube avoids impurity to get into the inside of transfer jar through the filter tube.

Preferably, the transfer tank is fixedly connected to the outer side wall of the condensation smoke eliminator, one side of the transfer tank, which is close to the vacuum furnace body, is fixedly connected with a circulating air pump, and impurities are prevented from entering the circulating air pump through the cooperation of the transfer tank and the filter pipe.

Preferably, the circulating air pump is fixedly connected with the vacuum furnace body, an electromagnetic valve is arranged at the joint of the circulating air pump and the vacuum furnace body, and the air circulation inside the vacuum furnace body is realized through the circulating air pump.

Preferably, a first cleaning door is arranged on the outer side wall of the filter box, a second cleaning door is arranged on the surface of the ash collecting box, and the filter box and the ash collecting box are cleaned conveniently by the aid of the first cleaning door and the second cleaning door.

In the technical scheme, the utility model has the technical effects and advantages that:

Through the cooperation of vacuum furnace body and smog processing mechanism, coarse and fine eye filter screen filters large granule smoke and dust earlier, prevent that spiral heat exchange tube from blockking up, heat conduction in with high temperature flue gas through spiral heat exchange tube to vacuum furnace body, reduce the heat energy extravagant, improve the energy utilization, utilize condensation smoke eliminator further cooling and purification flue gas, make volatile impurity condense and collect the cigarette ash and collect the box, reduce the pollution risk of vacuum pump, the gas after the circulating pump will purify again the vacuum furnace body simultaneously, maintain the in-furnace atmospheric pressure balance, avoid partial gas distribution uneven, improve smelting quality, and reduce the outside air and get into, reduce the oxidation risk, extension vacuum pump life.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic view of a first view angle structure of the present utility model;

FIG. 2 is a schematic diagram of an overall second view structure according to the present utility model;

FIG. 3 is a schematic view of the internal structure of the filter box of the present utility model;

Fig. 4 is a schematic view of the condensation smoke eliminator of the present utility model.

Reference numerals illustrate:

1. The smoke treatment device comprises a vacuum furnace body, a smoke treatment mechanism, a first smoke outlet pipe, a filter box, a second smoke outlet pipe, a spiral heat exchange pipe, a condensing smoke eliminator, a conical pipeline, a self-operated valve, a smoke collecting box, a furnace cover, a base, a coarse-eye filter screen, a fine-eye filter screen, a filter pipe, a transfer tank, a circulating air pump, a cleaning door I, a cleaning door II and a cleaning door II, wherein the vacuum furnace body, the smoke treatment mechanism, the smoke outlet pipe, the filter box, the filter pipe, the spiral heat exchange pipe, the condensing smoke eliminator, the spiral heat exchange pipe and the condensing smoke eliminator are respectively arranged in sequence, the spiral heat exchange pipe and the spiral heat exchange pipe.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

The utility model provides a smelting vacuum furnace with a smoke elimination mechanism, as shown in figures 1-4, comprising a vacuum furnace body 1, wherein a smoke treatment mechanism 2 is arranged at the outer side of the vacuum furnace body 1, the smoke treatment mechanism 2 comprises a first smoke outlet pipe 201 fixedly connected with the outer side wall of the vacuum furnace body 1, the bottom end of the first smoke outlet pipe 201 is fixedly connected with a filter box 202, the bottom end of the filter box 202 is fixedly connected with a second smoke outlet pipe 203, one side of the second smoke outlet pipe 203 far away from the filter box 202 is communicated with a spiral heat exchange pipe 204, the spiral heat exchange pipe 204 is fixedly connected with the outer side wall of the vacuum furnace body 1, one end of the spiral heat exchange pipe 204 far away from the filter box 202 is fixedly connected with a condensation smoke eliminator 205, the bottom end of the condensation smoke eliminator 205 is fixedly connected with a conical pipeline 206, the bottom end of the conical pipeline 206 is fixedly connected with an automatic valve 207, the bottom end of the automatic valve 207 is fixedly connected with a soot collecting box 208, through the cooperation of parts such as the filter box 202, the flue gas with heat provides waste heat for the vacuum furnace body 1 through the spiral heat exchange tube 204, and simultaneously the flue gas is purified through the parts such as the condensation smoke suppressor 205, the top of the vacuum furnace body 1 is provided with the furnace cover 3, the bottom end of the vacuum furnace body 1 is fixedly connected with the base 4, the filter box 202 and the ash collecting box 208 are fixedly connected with the top end of the base 4, the parts such as the vacuum furnace body 1 are supported through the base 4, the inner side wall of the filter box 202 is slidably connected with the coarse-eye filter screen 5, the inner side wall of the filter box 202 is slidably connected with the fine-eye filter screen 6, the fine-eye filter screen 6 is positioned below the coarse-eye filter screen 5, the coarse-eye filter screen 5 and the fine-eye filter screen 6 are used for double filtration of large particle impurities, the spiral heat exchange tube 204 is prevented from being blocked, the outer side of the condensation smoke suppressor 205 is fixedly connected with the filter tube 7, the top end of the filter tube 7 is fixedly connected with the transfer pot 8, impurities are prevented from entering the interior of the transfer tank 8 by the filter tube 7.

Referring to fig. 1-4 of the specification, the transfer tank 8 is fixedly connected to the outer side wall of the condensation smoke eliminator 205, one side of the transfer tank 8, which is close to the vacuum furnace body 1, is fixedly connected with the circulating air pump 9, impurities are prevented from entering the circulating air pump 9 through the cooperation of the transfer tank 8 and the filter pipe 7, the circulating air pump 9 is fixedly connected with the vacuum furnace body 1, an electromagnetic valve is installed at the joint of the circulating air pump 9 and the vacuum furnace body 1, the gas circulation inside the vacuum furnace body 1 is realized through the circulating air pump 9, the first cleaning door 10 is installed on the outer side wall of the filter box 202, the second cleaning door 11 is installed on the surface of the ash collecting box 208, the first cleaning door 10 and the second cleaning door 11 are utilized to facilitate cleaning of the filter box 202 and the ash collecting box 208, the coarse-eye filter screen 5 and the fine-eye filter screen 6 filter large-particle smoke dust firstly through the cooperation of the vacuum furnace body 1 and the smoke processing mechanism 2, the spiral heat exchange pipe 204 is prevented from being blocked, the heat in the high-temperature smoke is conducted to the vacuum furnace body 1 through the spiral heat exchange pipe 204, the heat energy waste is reduced, the energy utilization rate is improved, the ash collecting box 205 is utilized to further cool and clean the ash, the ash is enabled to be polluted, the smoke is enabled to be further, the ash is reduced, the air and the air is enabled to be polluted and the air, and the quality is reduced, and the air is not to be polluted by the air and is kept and air, and the air and air is reduced, and the quality and is not and polluted by the air.

The working principle of the utility model is as follows:

Referring to fig. 1-4 of the specification, in the smelting process of the vacuum furnace 1, the flue gas generated in the smelting process of the vacuum furnace 1 enters the filter box 202 through the first smoke outlet pipe 201, when the flue gas passes through the filter box 202, the coarse-eye filter screen 5 intercepts larger particle smoke dust, the fine-eye filter screen 6 further filters fine impurities, subsequent pipeline blockage is prevented, the filtered high-temperature flue gas enters the spiral heat exchange pipe 204, the heat exchange pipe is attached to the outer wall of the vacuum furnace 1, flue gas waste heat is transmitted to the furnace body through heat conduction, heat energy loss is reduced, the cooled flue gas enters the condensation smoke eliminator 205, volatile impurities are liquefied through cooling and flow into the ash collecting box 208 along the conical pipeline 206, the automatic valve 207 is automatically opened according to pressure, accumulated condensate is discharged, the ash collecting box 208 is enabled to enter the interior of the ash collecting box 208, purified gas passes through the filter pipe 7 and enters the transfer tank 8, solid impurity residues are avoided, the circulating air pump 9 pumps the gas into the vacuum furnace 1 again, the pressure in the furnace is stable, the uneven gas distribution is avoided, meanwhile, the load of the vacuum pump is reduced, when the interior of the filter box 202 needs to be cleaned, the first cleaning door 10 is opened, the fine-eye filter screen 6 and the interior 208 is removed, the coarse-eye filter screen 208 is cleaned, the interior of the ash collecting box 208 is cleaned, and the interior of the ash collecting box 11 is cleaned, and the interior of the ash collecting box is cleaned, and the ash collecting box 11 is opened.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims (7)

1. A smelting vacuum furnace with a smoke elimination mechanism, comprising a vacuum furnace body (1), characterized in that: a smoke treatment mechanism (2) is provided on the outer side of the vacuum furnace body (1), the smoke treatment mechanism (2) comprising a first smoke outlet pipe (201) fixedly connected to the outer wall of the vacuum furnace body (1), a filter box (202) fixedly connected to the bottom end of the first smoke outlet pipe (201), a second smoke outlet pipe (203) fixedly connected to the bottom end of the filter box (202), the second smoke outlet pipe (203) being away from the filter box (202). 2) One side is connected to a spiral heat exchange tube (204), which is fixedly connected to the outer wall of the vacuum furnace body (1). The end of the spiral heat exchange tube (204) away from the filter box (202) is fixedly connected to a condenser smoke eliminator (205). The bottom end of the condenser smoke eliminator (205) is fixedly connected to a conical pipe (206). The bottom end of the conical pipe (206) is fixedly connected to an automatic valve (207). The bottom end of the automatic valve (207) is fixedly connected to a soot collection box (208). 2. A smelting vacuum furnace with a smoke elimination mechanism according to claim 1, characterized in that: a furnace cover (3) is installed at the top of the vacuum furnace body (1), a base (4) is fixedly connected to the bottom of the vacuum furnace body (1), and the filter box (202) and the ash collection box (208) are fixedly connected to the top of the base (4). 3. A smelting vacuum furnace with a smoke elimination mechanism according to claim 1, characterized in that: a coarse mesh filter (5) is slidably connected to the inner wall of the filter box (202), and a fine mesh filter (6) is slidably connected to the inner wall of the filter box (202), wherein the fine mesh filter (6) is located below the coarse mesh filter (5). 4. A smelting vacuum furnace with a smoke elimination mechanism according to claim 1, characterized in that: a filter tube (7) is fixedly connected to the outside of the condenser smoke eliminater (205), and a transfer tank (8) is fixedly connected to the top of the filter tube (7). 5. A smelting vacuum furnace with a smoke elimination mechanism according to claim 4, characterized in that: the transfer tank (8) is fixedly connected to the outer wall of the condenser smoke eliminater (205), and a circulating air pump (9) is fixedly connected to the side of the transfer tank (8) near the vacuum furnace body (1). 6. A smelting vacuum furnace with a smoke elimination mechanism according to claim 5, characterized in that: the circulating air pump (9) is fixedly connected to the vacuum furnace body (1), and an electromagnetic valve is installed at the connection between the circulating air pump (9) and the vacuum furnace body (1). 7. A smelting vacuum furnace with a smoke elimination mechanism according to claim 1, characterized in that: a cleaning door (10) is installed on the outer side wall of the filter box (202), and a cleaning door (11) is installed on the surface of the ash collection box (208).