CN210892672U

CN210892672U - Melting furnace with tail gas purification and heat circulation functions

Info

Publication number: CN210892672U
Application number: CN201920868610.1U
Authority: CN
Inventors: 袁乃更
Original assignee: Tianjin Shengjinte Automobile Parts Co ltd
Current assignee: Tianjin Shengjinte Automobile Parts Co ltd
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-06-30
Anticipated expiration: 2029-06-11

Abstract

The utility model relates to a melting furnace with tail gas purification and heat cycle function, the induction cooker comprises a cooker bod, the top of furnace body is equipped with the agitator tank, and the top of agitator tank is equipped with the feeding case, the top of feeding case one side is equipped with first feed inlet, is equipped with horizontally spiral feeding oar in the feeding case, and spiral feeding oar links to each other with the outer second motor of feeding case lateral wall, be equipped with a plurality of aeration head on the interior roof of feeding case, be equipped with the opening on the feeding case diapire of keeping away from first feed inlet. The utility model discloses well hot gas gets into the thermal cycle intermediate layer from first gas outlet and keeps warm to furnace body inside, then the hot gas gets into tail gas clean-up box, and the hot gas through purifying and drying gets into the aeration head and dry to initial material, has reached thermal cyclic utilization.

Description

Melting furnace with tail gas purification and heat circulation functions

Technical Field

The utility model relates to a melting furnace technical field especially relates to a melting furnace with tail gas purification and heat circulation function.

Background

The metal casting is a technological process of smelting metal into liquid meeting certain requirements, pouring the liquid into a casting mold, cooling, solidifying and cleaning to obtain a casting with a preset shape, size and performance. At present, most metals need to be melted in a melting furnace firstly, but molten metal in a melting state is easily oxidized by oxygen due to the oxidizability of the metals, so that the metals collected by melting are impure, in addition, when the metals are melted, large metal blocks and small metal blocks are melted together, the efficiency is low, in the heating process, the heat of a furnace body is easily dissipated and lost, the utilization of energy is not facilitated, and tail gas after the metals are melted contains harmful substances which are directly discharged into the air to easily pollute the environment.

Disclosure of Invention

The utility model aims to solve the defects of the prior art and provide a melting furnace with tail gas purification and heat circulation functions.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:

a melting furnace with tail gas purification and heat circulation functions comprises a furnace body, wherein a stirring box is arranged above the furnace body, a feeding box is arranged above the stirring box, a first feeding hole is formed in the top of one side of the feeding box, a horizontal spiral feeding paddle is arranged in the feeding box, the spiral feeding paddle is connected with a second motor outside the side wall of the feeding box, a plurality of aeration heads are arranged on the inner top wall of the feeding box, an opening is formed in the bottom wall of the feeding box far away from the first feeding hole and communicated with the second feeding hole in the top wall of the stirring box, a vertical central shaft is arranged in the middle of the stirring box and connected with the first motor arranged on the top wall of the stirring box, a plurality of stirring blades are arranged on the central shaft, a plurality of stirring blades are also arranged on the inner side wall of the stirring box, and the stirring blades on the central shaft and the stirring blades on the box wall are, the bottom wall of the stirring box is funnel-shaped, the center of the bottom wall of the stirring box is communicated with a third feeding hole on the top wall of the furnace body, the side wall of the furnace body is provided with a thermal cycle interlayer and a heat preservation layer from inside to outside, a primary melting net and a first filter screen are arranged in the furnace body from top to bottom, the first filter screen is arranged in an inclined manner, a first gas outlet is arranged on the inner wall of the furnace body above the primary melting net and is communicated with the thermal cycle interlayer, a gas steel cylinder is arranged outside the furnace body, a gas outlet pipe of the gas steel cylinder is communicated with the inside of the furnace body, a gas guide plate is arranged inside the connecting position of the gas outlet pipe of the gas steel cylinder and the side wall of the furnace body, the periphery of the gas guide plate is fixed on the top wall, the side wall and the primary melting net of the furnace body, heating plates are fixedly arranged on the front inner side wall and the rear side wall of the furnace body, the side wall of the furnace body above the lower side of the first filter screen is provided with a impurity removing opening, the side wall of the lower part of the thermal cycle interlayer is provided with a second gas outlet, a tail gas purification box is arranged outside the furnace body, the second gas outlet is introduced into the tail gas purification box from the side wall of the tail gas purification box, the tail gas purification box is internally provided with a second filter screen, a dust blocking screen plate, a diatomite adsorption layer, an active carbon adsorption layer and an adsorption cotton layer from bottom to top, the bottom of the tail gas purification box is a water tank, the communication part of the second gas outlet and the tail gas purification box is positioned between the second filter screen and the dust blocking screen plate, the lower part of the dust blocking screen plate is provided with a plurality of atomization nozzles, the side wall of the water tank at the bottom of the tail gas purification box is connected with a circulating pipe, the upper end of the circulating pipe is communicated with the atomization nozzles, the circulating pipe, the hot air circulating pipe is communicated with a drying box, an air outlet pipe communicated with the side wall of the drying box is communicated with an aeration head, the bottom wall of the furnace body is funnel-shaped, and a discharge hole is formed in the center of the bottom wall of the furnace body.

The heat preservation layer is a rock wool heat preservation layer.

The heating plate is a resistance wire heating plate.

And valves are arranged on the discharge port, the impurity removing port, the third feed port and the second feed port.

A plurality of supporting rods are connected between the bottom wall of the stirring box and the furnace body.

The gas steel cylinder is filled with inert gas.

The drying box is internally provided with an anhydrous calcium chloride drying agent.

The utility model has the advantages that: the utility model discloses when using, at first through feeding case feeding, in the feed process, the hot-air of aeration head can be to material drying, stirring blade in the agitator tank can smash the bold metal of gathering together, after the material got into the furnace body, the direct under-leakage primary fusion net of material of fritter, hot plate direct heating melting, bold material progressively heaies up the melting on the primary fusion net is the material of fritter, then under-leakage primary fusion net heating, the efficiency of heating melting has been improved, inert gas that lets in among the heating process gets into the below of primary fusion net from one side of air guide plate, the hot gas gets into the thermal cycle intermediate layer from first gas outlet and keeps warm to furnace body inside, then the hot gas gets into the tail gas purifying box, get into aeration head through purification and dry hot gas and dry initial material drying, thermal cyclic utilization has been reached.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the first screen, the impurity removing port and the heating plate of the present invention;

in the figure: 1-furnace body; 2-insulating layer; 3-thermal cycling interlayer; 4-a first screen; 5-removing impurities; 6-heating plate; 7-primary melting net; 8-a first air outlet; 9-a strut; 10-a stirring box; 11-stirring blade; 12-a central axis; 13-hot air circulating pipe; 14-a first electric machine; 15-a feed box; 16-an aerator; 17-a first feed port; 18-a second electric machine; 19-helical feed paddles; 20-gas cylinders; 21-a gas guide plate; 22-tail gas outlet; 23-a tail gas purification box; 24-an absorbent cotton layer; 25-an activated carbon adsorption layer; 26-diatomite adsorption layer; 27-a dust blocking screen plate; 28-atomizing spray heads; 29-a booster pump; 30-a second screen; 31-a second outlet; 32-a discharge hole; 33-a drying oven;

the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

as shown in fig. 1 to 2, a melting furnace with tail gas purification and heat circulation functions comprises a furnace body 1, a stirring box 10 is arranged above the furnace body 1, a feeding box 15 is arranged above the stirring box 10, a first feeding port 17 is arranged at the top of one side of the feeding box 15, a horizontal spiral feeding paddle 19 is arranged in the feeding box 15, the spiral feeding paddle 19 is connected with a second motor 18 outside the side wall of the feeding box 15, a plurality of aeration heads 16 are arranged on the inner top wall of the feeding box 15, an opening is arranged on the bottom wall of the feeding box 15 far away from the first feeding port 17 and communicated with a second feeding port on the top wall of the stirring box 10, a vertical central shaft 12 is arranged in the middle of the stirring box 10, the central shaft 12 is connected with a first motor 14 arranged on the top wall of the stirring box 10, a plurality of stirring blades 11 are arranged on the central shaft 12, and a plurality of stirring blades 11 are also arranged on the inner side wall of the, stirring blades 11 on a central shaft 12 and stirring blades 11 on the wall of the stirring tank are arranged at intervals, the bottom wall of the stirring tank 10 is funnel-shaped, the center of the bottom wall of the stirring tank 10 is communicated with a third feeding hole on the top wall of the furnace body 1, the side wall of the furnace body 1 is provided with a thermal cycle interlayer 3 and a heat preservation layer 2 from inside to outside, a primary melting net 7 and a first filter screen 4 are arranged in the furnace body 1 from top to bottom, the first filter screen 4 is obliquely arranged, a first gas outlet 8 is arranged on the inner wall of the furnace body 1 above the primary melting net 7, the first gas outlet 8 is communicated with the thermal cycle interlayer 3, a gas steel cylinder 20 is arranged outside the furnace body 1, a gas outlet pipe of the gas steel cylinder 20 is communicated with the inside of the furnace body 1, a gas guide plate 21 is arranged inside the position where the gas outlet pipe of the gas steel cylinder 20 is connected with the side wall of the furnace body 1, the gas guide plate 21 is fixed on, the heating plate 6 is positioned between the primary smelting net 7 and the first filter screen 4, the cross section of the furnace body 1 comprises a left square and a right trapezoid, the upper bottom edge of the trapezoid is positioned at the lower side of the first filter screen 4, the side wall of the furnace body 1 above the lower side of the first filter screen 4 is provided with the impurity removing port 5, the lower side wall of the thermal cycle interlayer 3 is provided with a second air outlet 31, the furnace body 1 is externally provided with a tail gas purifying box 23, the second air outlet 31 is introduced into the tail gas purifying box 23 from the side wall of the tail gas purifying box 23, the tail gas purifying box 23 is internally provided with a second filter screen 30, a dust blocking screen plate 27, a diatomite adsorbing layer 26, an active carbon adsorbing layer 25 and an adsorbing cotton layer 24 from bottom to top, the bottom in the tail gas purifying box 23 is a water tank, the communication position of the second air outlet 31 and the tail gas purifying box 23 is positioned between the second filter screen 30 and the dust blocking screen plate 27, the lower part of, the bottom water tank lateral wall of tail gas clean-up box 23 even has circulating pipe, and circulating pipe's upper end is linked together with atomizer 28, and the last booster pump 29 that is equipped with of circulating pipe, tail gas outlet 22 has been seted up at tail gas clean-up box 23's top, and the intercommunication has hot air circulating pipe 13 on the tail gas outlet 22, and hot air circulating pipe 13 intercommunication has drying cabinet 33, and the outlet duct of intercommunication is linked together with aeration head 16 on the drying cabinet 33 lateral wall, hot air circulating pipe the diapire of furnace body 1 is for leaking hopper-shaped, and discharge gate 32 has been seted up to.

The heat preservation layer 2 is a rock wool heat preservation layer.

The heating plate 6 is a resistance wire heating plate.

And valves are arranged on the discharge port 32, the impurity removing port 5, the third feed port and the second feed port.

A plurality of supporting rods 9 are connected between the bottom wall of the stirring box 10 and the furnace body 1.

The gas cylinder 20 is filled with inert gas.

The drying box 33 is internally provided with an anhydrous calcium chloride drying agent.

When the utility model is used, firstly, the materials are fed through the feeding box 13, in the feeding process, the hot air of the aeration head 16 can dry the materials, the stirring blades 11 in the stirring box 10 can break the large metal blocks gathered together, after the materials enter the furnace body 1, the small materials directly leak down the primary melting net 7, the heating plate 6 directly heats and melts, the large materials gradually heat up and melt on the primary melting net 7 to form small materials, then the primary smelting net 7 is leaked for heating, the heating and melting efficiency is improved, the introduced inert gas enters the lower part of the primary smelting net 7 from one side of the gas guide plate 21 in the heating process, the hot gas enters the thermal cycle interlayer 3 from the first gas outlet 8 to preserve the heat of the interior of the furnace body 1, then the hot gas enters the tail gas purification box 23, and the purified and dried hot gas enters the aeration head 16 to dry the initial material, so that the heat is recycled.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements made by the method concept and technical solution of the present invention or directly applied to other occasions without improvement are all within the protection scope of the present invention.

Claims

1. A melting furnace with tail gas purification and heat circulation functions is characterized by comprising a furnace body (1), wherein a stirring box (10) is arranged above the furnace body (1), a feeding box (15) is arranged above the stirring box (10), a first feeding hole (17) is formed in the top of one side of the feeding box (15), a horizontal spiral feeding paddle (19) is arranged in the feeding box (15), the spiral feeding paddle (19) is connected with a second motor (18) outside the side wall of the feeding box (15), a plurality of aeration heads (16) are arranged on the inner top wall of the feeding box (15), an opening is formed in the bottom wall of the feeding box (15) far away from the first feeding hole (17) and communicated with a second feeding hole in the top wall of the stirring box (10), a vertical central shaft (12) is arranged in the middle of the stirring box (10), the central shaft (12) is connected with a first motor (14) arranged on the top wall of the stirring box (10), be equipped with a plurality of stirring blade (11) on center pin (12), also be equipped with a plurality of stirring blade (11) on the inside wall of agitator tank (10), stirring blade (11) on center pin (12) and stirring blade (11) looks interval on the tank wall set up, the diapire of agitator tank (10) is for leaking hopper-shaped, and the diapire center department of agitator tank (10) is linked together with the third feed inlet on furnace body (1) roof, the lateral wall of furnace body (1) is equipped with thermal cycle intermediate layer (3) and heat preservation (2) from interior to exterior, be equipped with primary fusion net (7) and first filter screen (4) from top to bottom in furnace body (1), first filter screen (4) slope sets up, be equipped with first gas outlet (8) on furnace body (1) inner wall above primary fusion net (7), first gas outlet (8) are linked together with thermal cycle intermediate layer (3), and furnace body (1) is equipped with gas body (20) outward, the gas outlet pipe of the gas steel cylinder (20) is communicated with the inside of the furnace body (1), the gas outlet pipe of the gas steel cylinder (20) is provided with a gas guide plate (21) in the position connected with the side wall of the furnace body (1), the gas guide plate (21) is fixed on the top wall, the side wall and the primary melting net (7) of the furnace body (1) all around, a heating plate (6) is fixedly arranged on the inner side wall of the furnace body (1) in the front and at the back, the heating plate (6) is positioned between the primary melting net (7) and the first filter screen (4), the trapezoidal upper bottom edge of the furnace body (1) in the transverse section comprising the left square and the right side is positioned at the lower side of the first filter screen (4), a foreign material removing opening (5) is opened on the side wall of the furnace body (1) above the lower side of the first filter screen (4), a second gas outlet (31) is opened on the side wall of the lower part of the, the second gas outlet (31) is communicated with the inside of the tail gas purification box (23) from the side wall of the tail gas purification box (23), the tail gas purification box (23) is internally provided with a second filter screen (30), a dust blocking screen plate (27), a diatomite adsorption layer (26), an activated carbon adsorption layer (25) and an adsorption cotton layer (24) from bottom to top, the bottom of the tail gas purification box (23) is a water tank, the communicating part of the second gas outlet (31) and the tail gas purification box (23) is positioned between the second filter screen (30) and the dust blocking screen plate (27), the lower part of the dust blocking screen plate (27) is provided with a plurality of atomizing nozzles (28), the side wall of the water tank at the bottom of the tail gas purification box (23) is connected with a circulating water pipe, the upper end of the circulating water pipe is communicated with the atomizing nozzles (28), the circulating water pipe is provided with a booster pump (29), the top of the tail gas purification box (23) is provided with a tail gas outlet, the hot air circulating pipe (13) is communicated with a drying box (33), an air outlet pipe communicated with the side wall of the drying box (33) is communicated with an aeration head (16), the bottom wall of the furnace body (1) is funnel-shaped, and a discharge hole (32) is formed in the center of the bottom wall of the furnace body (1).

2. A melting furnace with tail gas cleaning and heat circulation functions as claimed in claim 1, characterized in that the insulation layer (2) is rock wool insulation layer.

3. A melting furnace with tail gas cleaning and heat circulation functions as claimed in claim 1, characterized in that the heating plate (6) is a resistance wire heating plate.

4. A melting furnace with tail gas cleaning and heat recycling functions as claimed in claim 1, characterized in that the discharge port (32), the impurity removing port (5), the third feed port and the second feed port are provided with valves.

5. A melting furnace with functions of tail gas purification and heat circulation as claimed in claim 1, characterized in that a plurality of supporting rods (9) are connected between the bottom wall of the stirring box (10) and the furnace body (1).

6. A melting furnace with tail gas cleaning and heat recycling functions as claimed in claim 1, characterized in that the gas cylinder (20) is filled with inert gas.

7. A melting furnace with tail gas cleaning and heat recycling functions as claimed in claim 1, characterized in that the drying box (33) is filled with anhydrous calcium chloride desiccant.