CN216745425U - Energy-saving heat-storage antimony white volatilization pot - Google Patents

Abstract

The utility model relates to a metal melting equipment field specifically relates to an energy-saving heat accumulation antimony white pot that volatilizees, including the boiler body and the heating chamber of volatilizing, set up the plenum directly over the boiler body of volatilizing, air pressure keeps invariable in the plenum, set up the air jetting pipe in the middle of the boiler body and the plenum of volatilizing, air jetting pipe length is 25-30cm, and the plenum top sets up antimony white and collects the flue, and boiler body one side of volatilizing sets up the heat accumulation formula combustor and links to each other with the heating chamber, and the department of linking to each other is provided with the fire wall, the inside heat accumulation body that is equipped with of heat accumulation formula combustor adopts the corundum honeycomb body, the heat accumulation formula combustor is installed in the air-supply line exit, air-supply line import department is provided with the air-blower that is used for blowing the air into the plenum, the plenum is provided with the air intake and links to each other with the air-blower export, the beneficial effects of the utility model are that: the heat accumulating type combustor is introduced, the injection pipe is added, and air is adopted to replace pure oxygen to serve as an oxidant, so that the heat energy utilization rate is high, the exhaust gas temperature is low, and the production cost is low.

Description

Energy-saving heat-storage antimony white volatilization pot

Technical Field

The utility model relates to a metal melting equipment field specifically relates to an energy-saving heat accumulation antimony white pot that volatilizees.

Background

In the precious metal smelting process, antimony slag and antimony-containing anode mud can be generated, the antimony grade is between 20% and 30%, the antimony-containing materials are important resources for producing antimony white, an antimony white volatilization pot is required in the antimony white production process, the antimony white volatilization pot is mainly used for melting and oxidizing low-melting-point metals such as lead, antimony, bismuth and alloys thereof, however, most of the existing antimony white volatilization pots adopt pure oxygen as an oxidant, the production cost is high, and the problems of high smoke exhaust temperature, non-uniform furnace temperature, low heat energy utilization rate and high energy consumption generally exist in the use process. The patent number is CN1482067A, the utility model discloses a method of production antimony white and apparatus for producing's patent, specifically disclose a coal-fired type antimony white apparatus for producing, including furnace body and combustion chamber, cooling flue on the furnace body top is linked together with the fan import, the fan export is linked together with sack room import, the oxygen boosting air supply is by the air compressor machine, the oxygen jar, the nitrogen gas jar, flow table and governing valve combination form, this kind of antimony white apparatus for producing adopts the coal as the energy, there is the insufficient furnace temperature that leads to of coal burning inhomogeneous, the big problem of energy resource consumption, this kind of antimony white apparatus for producing oxygen boosting air supply is by the air compressor machine, the oxygen jar, the nitrogen gas jar, flow table and governing valve combination form and guarantee oxygen concentration 35%, complex operation, the blowtorch adopts seamless steel pipe easily to introduce impurity iron in antimony white converting process and causes the product unqualified simultaneously. The patent number is CN208720807U, the name of the utility model is a patent of an oxidation pot device for preparing antimony white, in particular to an oxidation pot device for preparing antimony white, which comprises a pot platform, an oxidation pot is arranged at the top of the pot platform, the bottom of the oxidation pot is a curved surface, a blowpipe is arranged above the oxidation pot, the upper end of the blowpipe is connected with an air box, a round hearth is arranged in the pot platform, and the bottom of the oxidation pot is positioned at the upper part of the round hearth; a fire wall is arranged below the oxidation pot and in the middle of the round hearth; only one end of the fire-blocking wall is connected with the side wall of the circular hearth; an opening I is respectively arranged on the side wall of the circular hearth at two sides of the joint of the fire-blocking wall and the side wall of the circular hearth, the opening I is a burner setting position and is located at the position where the bottom of the side wall of the circular hearth is connected with the fire-blocking wall, and the other opening I is a smoke exhaust port and is located at the position where the upper part of the side wall of the circular hearth is connected with the fire-blocking wall. The antimony white production device cannot effectively solve the problems of low heat energy utilization rate, high exhaust gas temperature and high production cost in the precious metal smelting process, antimony slag and antimony-containing anode mud can be generated, the antimony grade is between 20% and 30%, the antimony-containing materials are important resources for producing antimony white, an antimony white volatilization pot is used in the antimony white production process, and the antimony white volatilization pot is mainly used for melting and oxidizing low-melting-point metals such as lead, antimony, bismuth and alloys thereof, however, most of the existing antimony white volatilization pots adopt pure oxygen as an oxidant, so that the production cost is high, and the problems of high exhaust gas temperature, non-uniform furnace temperature, low heat energy utilization rate and high energy consumption generally exist in the using process. Patent publication is CN1482067A, the utility model discloses a method of production antimony white and apparatus for producing's patent, specifically disclose a coal-fired type antimony white apparatus for producing, including furnace body and combustion chamber, cooling flue on the furnace body top is linked together with the fan import, the fan export is linked together with sack room import, the oxygen boosting air supply is by the air compressor machine, the oxygen jar, the nitrogen gas jar, flow table and governing valve combination form, this kind of antimony white apparatus for producing adopts the coal as the energy, there is the insufficient furnace temperature that leads to of coal burning inhomogeneous, the big problem of energy resource consumption, this kind of antimony white apparatus for producing oxygen boosting air supply is by the air compressor machine, the oxygen jar, the nitrogen gas jar, flow table and governing valve combination form and guarantee oxygen concentration 35%, complex operation, the blowtorch adopts seamless steel pipe easily to introduce impurity iron in antimony white converting process and causes the product unqualified simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the defects in the prior art are overcome, and the energy-saving heat-storage antimony white volatilization pot is provided, so that the problems that the cost is high, the smoke exhaust temperature is high, the furnace temperature is uneven and the heat utilization rate is low due to the fact that pure oxygen is adopted as an oxidant in the conventional antimony white volatilization pot generally are solved.

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

the utility model provides an energy-saving heat accumulation antimony white pot that volatilizees, is including the boiler body and the heating chamber of volatilizing, set up the plenum directly over the boiler body of volatilizing, plenum air pressure keeps invariable, set up the air blowing pipe in the middle of the boiler body and the plenum of volatilizing, air blowing pipe length is 25-30cm, the plenum top sets up antimony white and collects the flue, the boiler body one side of volatilizing set up the heat accumulation formula combustor with the heating chamber links to each other, and the department of linking to each other is provided with the fire wall, the inside corundum honeycomb body that is equipped with of heat accumulation formula combustor, the heat accumulation formula combustor is installed in the air-supply line exit, air-supply line import department is provided with the air-blower that is used for blowing the plenum into with the air, the plenum is provided with the air intake and links to each other with the air-blower export.

Furthermore, the air blowing pipe is made of 4-316L stainless steel.

Furthermore, the air injection pipes are arranged in a plurality of rows at equal intervals, and each row comprises a plurality of air injection pipes arranged at equal intervals.

Further, the plenum air pressure is maintained at 1500 pa.

Furthermore, the high-aluminum refractory bricks, the insulating bricks and the aluminum silicate heat insulation blanket are sequentially arranged on the wall of the heating cavity from inside to outside.

Further, the air chamber is connected with the volatilization boiler body through a baffle plate.

Furthermore, the baffles are uniformly distributed.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the regenerator combustor is in a heat accumulation and heat release alternative working state, fuel is subjected to volume combustion in a furnace space with oxygen content controlled within 2-15% by means of effectively organizing flow velocity, intersection angle, mixing mode and the like of fuel and combustion-supporting air inlet streams, the regenerator can effectively intercept flue gas waste heat, the flue gas temperature is controlled within a range of above a dew point and below 150 ℃, the flue gas waste heat is recovered to the maximum extent, the temperature in the furnace is more uniform, and the effects of environmental protection, energy conservation and heating quality improvement are achieved.

2. The heat accumulating type combustion mode can simultaneously achieve the aims of saving 10-30% of fuel, improving 10-20% of output and reducing 20-50% of smoke discharge amount, and solves the problems of high smoke discharge temperature and low heat energy utilization rate.

3. And an injection pipe is added, and air is used as an oxidant instead of pure oxygen, so that the production cost is reduced.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 is a schematic structural view of an energy-saving heat-storage antimony white volatilization pot provided by an embodiment of the utility model;

FIG. 2 is a top view of the energy-saving heat-accumulating antimony white volatilization pot according to the embodiment of the utility model;

fig. 3 is a schematic structural view of an air chamber and an air blowing pipe according to an embodiment of the present invention;

in the figure, 1, a volatilization boiler body; 2. an air chamber; 3. a flue; 4. a regenerative burner; 5. a blower; 6. an air blowing pipe; 7. an air inlet; 8. a fire barrier wall; 9. a heating cavity; 10. a baffle plate; 11. an air inlet pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, 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 belong to the protection scope of the present invention.

Referring to fig. 1-3, the utility model provides an energy-saving heat-accumulating antimony white volatilization pot, which comprises a volatilization boiler body 1 and a heating cavity 9, an air chamber 2 is arranged right above the volatilization boiler body 1, the air pressure in the air chamber 2 keeps constant, an air injection pipe 6 is arranged between the volatilization boiler body 1 and the air chamber 2, the length of the air injection pipe 6 is 25-30cm, an antimony white collecting flue 3 is arranged above the air chamber 2, a heat accumulating type burner 4 is arranged on one side of the volatilization boiler body 1 and is connected with the heating cavity 9, a fire wall 8 is arranged at the connection part, the heat accumulating type burner 4 is internally provided with a heat accumulating body which is a corundum honeycomb body, the heat accumulating type burner 4 is arranged at the outlet of the air inlet pipe 11, an air blower 5 for blowing air into the air chamber is arranged at the inlet of the air inlet pipe 11, and an air inlet 7 arranged on the air chamber 2 is connected with the outlet of the air blower 5.

When the boiler works, air is blown by the air blower 5, one part of air enters the air chamber 2 and is blown into the volatilization boiler body 1 through the blowing pipe 6, the other part of air enters the heat accumulation type combustor 4 through the air inlet pipe 11, the heat accumulation type combustor 4 is in a heat accumulation and heat release alternative working state, fuel is subjected to volume combustion in the furnace space with the oxygen content controlled at 2-15% by means of effectively organizing the flow rate, the intersection angle, the mixing mode and the like of fuel and combustion-supporting air entering streams, the heat accumulation chamber can effectively intercept residual heat of flue gas, the temperature of flue gas is controlled within the range of above the dew point and below 150 ℃, the residual heat of the flue gas is recovered to the maximum extent, the temperature in the furnace is more uniform, and the effects of environmental protection, energy conservation and improvement of heating quality are achieved.

The heat accumulator arranged in the heat accumulating type combustor 4 adopts a corundum honeycomb body which has the advantages of self-cleaning, dust prevention, slag prevention, small resistance, repeated use, high heat accumulation efficiency and normal service life of more than 1 year.

In one embodiment, the air injection tube 6 is made of 4-segment 316L stainless steel.

In one embodiment, the air blowing pipes 6 are arranged in a plurality of rows with equal intervals, each row comprises a plurality of rows with equal intervals, and the structure is favorable for blowing air into the volatilization boiler body 1 constantly and uniformly.

In one embodiment, the air pressure in the air chamber 2 is kept at 1500pa, and the air pressure in the air chamber 2 is kept at 1500pa by arranging a wind pressure control device, so as to be beneficial to maintaining stable air blown into the volatilization boiler body 1, wherein the wind pressure control device adopts the prior art, and is not described herein again.

In one embodiment, the cavity wall of the heating cavity 9 is sequentially provided with a high-aluminum refractory brick, a heat-insulating brick and an aluminum silicate heat-insulating blanket from inside to outside, so that the high-temperature resistant heating cavity is high in temperature resistance and good in heat-insulating property.

In one embodiment, the plenum 2 is connected to the volatilization boiler body 1 through a baffle plate 10, and preferably, the baffle plate 10 is uniformly distributed in a plurality to ensure that the plenum 2 is firmly connected to the volatilization boiler body 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides an energy-saving heat accumulation antimony white pot that volatilizees, includes the boiler body that volatilizees (1) and heating chamber (9), its characterized in that: an air chamber (2) is arranged right above the volatilization boiler body (1), the air pressure in the air chamber (2) is kept constant, an air blowing pipe (6) is arranged between the volatilization boiler body (1) and the air chamber (2), the length of the air injection pipe (6) is 25-30cm, an antimony white collecting flue (3) is arranged above the air chamber (2), a heat accumulating type burner (4) is arranged at one side of the volatilization boiler body (1) and is connected with the heating cavity (9), a fire wall (8) is arranged at the connection part, the heat accumulating type combustor (4) is internally provided with a heat accumulator which is a corundum honeycomb body, the heat accumulating type combustor (4) is arranged at an outlet of the air inlet pipe (11), an air blower (5) for blowing air into the heat accumulating type burner is arranged at the inlet of the air inlet pipe (11), the air chamber (2) is provided with an air inlet (7) which is connected with the outlet of the blower (5).

2. The energy-saving heat-storage antimony white volatilization pot as claimed in claim 1, characterized in that: the air blowing pipe (6) is made of 4-316L stainless steel.

3. The energy-saving heat-storage antimony white volatilization pot as claimed in claim 1, characterized in that: the air blowing pipes (6) are arranged in a plurality of rows at equal intervals, and each row comprises a plurality of air blowing pipes arranged at equal intervals.

4. The energy-saving heat-storage antimony white volatilization pot according to claim 3, characterized in that: the plenum (2) air pressure is maintained at 1500 pa.

5. The energy-saving heat-storage antimony white volatilization pot as claimed in claim 1, characterized in that: the wall of the heating cavity (9) is sequentially provided with a high-alumina refractory brick, a heat-insulating brick and an aluminum silicate heat-insulating blanket from inside to outside.

6. The energy-saving heat-storage antimony white volatilization pot as claimed in claim 1, characterized in that: the air chamber (2) is connected with the volatilization boiler body (1) through a baffle (10).

7. The energy-saving heat-storage antimony white volatilization pot as claimed in claim 6, characterized in that: the baffles (10) are uniformly distributed.

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