CN110094969B - Energy-saving and environment-friendly device for burning organic matters in nitriding kiln - Google Patents

Energy-saving and environment-friendly device for burning organic matters in nitriding kiln Download PDF

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Publication number
CN110094969B
CN110094969B CN201910412239.2A CN201910412239A CN110094969B CN 110094969 B CN110094969 B CN 110094969B CN 201910412239 A CN201910412239 A CN 201910412239A CN 110094969 B CN110094969 B CN 110094969B
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China
Prior art keywords
kiln
air
pipe
refractory material
material layer
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CN201910412239.2A
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Chinese (zh)
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CN110094969A (en
Inventor
许大燕
翟皖予
范亚娟
吴艳霞
薛娟娟
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Sinosteel Luonai Technology Co ltd
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Sinosteel Luonai Technology Co ltd
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/04—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
    • F27B9/045—Furnaces with controlled atmosphere
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/26—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers
    • F27B9/262—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers on or in trucks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/3005—Details, accessories, or equipment peculiar to furnaces of these types arrangements for circulating gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/36—Arrangements of heating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/26—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers
    • F27B9/262—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers on or in trucks
    • F27B2009/266—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers on or in trucks the truck having conducts for guiding the oven atmosphere
    • F27B2009/268—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers on or in trucks the truck having conducts for guiding the oven atmosphere through the structure of the car and through the charge
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Furnace Details (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

The invention belongs to the technical field of organic matter combustion in a nitriding kiln, and discloses an energy-saving and environment-friendly device for organic matter combustion in the nitriding kiln, wherein a blast soft pipe hole and an exhaust soft pipe hole are through holes penetrating through the right side wall of a tunnel kiln; two binder discharge holes are horizontally and bilaterally symmetrically arranged at the front side of the inner bottom of the sagger, a discharge porcelain tube penetrates through the two binder discharge holes to extend to the inner bottom of the sagger, and the discharge porcelain tube is arranged in the refractory material layer; the burning porcelain tube extends to the upper portion of the refractory material layer, and two burning porcelain tubes are fixedly communicated with the transverse porcelain tube transversely arranged in the refractory material layer. The energy-saving and environment-friendly device for burning organic matters in the nitriding kiln realizes direct burning of the bonding agent at the burner part, increases burning heat, saves natural gas burning quantity passing through the burner part, reduces heat energy consumption and protects the environment.

Description

Energy-saving and environment-friendly device for burning organic matters in nitriding kiln
Technical Field
The invention belongs to the technical field of organic matter combustion in a nitriding kiln, and particularly relates to an energy-saving and environment-friendly device for organic matter combustion in the nitriding kiln.
Background
The bonding agent is an indispensable molding bonding agent for pressing the semi-finished refractory brick blank, and the bonding agent commonly used for pressing the semi-finished refractory brick blank mainly comprises the following components: methylcellulose, resins, dextrin, polyvinyl alcohol, sulfurous acid pulp waste liquid, syrup or various inorganic salts (such as phosphoric acid or phosphate), and the like. The binder used in the process of pressing the semi-finished refractory brick blank plays a decisive role in the formation of the pressed semi-finished refractory brick. However, in the calcining process of the formed refractory brick in the nitrogen atmosphere sagger of the shuttle kiln, the bonding agent is volatilized into gas at high temperature to precipitate out from the periphery of the semi-finished refractory brick to form micropores, and when nitrogen is filled into the sagger, the nitrogen can enter a refractory brick blank by utilizing the micropores of the precipitated bonding agent, and metal silicon and the nitrogen react to form bonding phase-silicon nitride, so that the silicon nitride bonding silicon carbide material is prepared, and has good physical properties. In the calcining process, when the temperature is 200-500 ℃, the bonding agent is discharged from the green bricks in a large amount, and the gaseous bonding agent is required to be extracted from the sagger at the moment; if the binder is not extracted: on one hand, the difficulty of filling nitrogen into the sagger is directly increased; on the other hand, the refractory bricks form water mark waste products.
In the prior art, the gaseous bonding agent separated out from the refractory brick blank in the calcining process is directly extracted and discharged into the air by an exhaust fan; the extracted binding agent causes great pollution to the environment and does not meet the requirement of environmental protection. The inventor develops an energy-saving and environment-friendly device for burning organic matters in a nitriding kiln based on the defects of the bonding agent extraction method in the prior art, and can well solve the problems in the prior art.
Disclosure of Invention
The invention aims to solve the technical problems and provides an energy-saving and environment-friendly device for burning organic matters in a nitriding kiln, which has simple, scientific and reasonable structural design; the invention can solve the problem that the gaseous bonding agent separated out from the refractory brick blank in the calcining process is directly pumped and discharged into the outside air to pollute the environment, and simultaneously realizes the direct combustion of the bonding agent in the burner part, increases the combustion heat and saves the natural gas combustion quantity passing through the burner part.
The technical scheme adopted by the invention is as follows: an energy-saving and environment-friendly device for burning organic matters in a nitriding kiln comprises a shuttle kiln, a kiln car body, a refractory material layer and a sagger supporting refractory material; the shuttle kiln outer shell is cuboid, and the inside is dome-shaped; the kiln car body is a movable kiln car formed by welding channel steel, the kiln car body is arranged on a track in the shuttle kiln, the refractory material layer is fixedly arranged at the upper part of the kiln car body, and the sagger support refractory materials are horizontally fixed at equal intervals around the refractory material layer; the sagger is fixedly arranged on the sagger supporting refractory material; the waste gas exhaust pipe is fixedly arranged at the center of the refractory material layer, and the waste gas exhaust pipe is a vent hole penetrating through the kiln car body and the refractory material layer; the exhaust pipe is L-shaped, and one end of the exhaust pipe corresponds to the exhaust pipe; one end of the blast pipe is vertically and fixedly communicated with the blast main pipe, and the other end of the blast pipe penetrates through the refractory material layer and is vertically and fixedly communicated with the transverse porcelain pipe; the air draft main pipe and the air blast main pipe are fixedly welded in channel steel of the kiln car body, and the air draft main pipe is longitudinally arranged at the right side of the kiln car body; the plug is screwed on the right end of the main air suction pipe, and the upper part of the main air suction pipe is fixedly communicated with the discharge porcelain pipe; the air blast soft pipe hole and the air draft soft pipe hole penetrate through the bottom of the right side wall of the shuttle kiln, are arranged in a front-back parallel manner, and are through holes penetrating through the right side wall of the shuttle kiln; the air blowing hose and the air draft hose respectively penetrate through the air blowing hose hole and the air draft hose hole, the left end of the air blowing hose is fixedly screwed up with the air blowing main pipe, the right end of the air blowing hose is fixedly communicated with the air outlet of the air blower, the left end of the air draft hose is fixedly screwed up with the air draft main pipe, and the right end of the air draft hose is fixedly communicated with the air inlet of the air blower; two binder discharge holes are horizontally and bilaterally symmetrically arranged at the front side of the inner bottom of the sagger, a discharge porcelain tube penetrates through the two binder discharge holes to extend to the inner bottom of the sagger, and the discharge porcelain tube is arranged in the refractory material layer; two combustion porcelain tubes are fixedly arranged in the left side of the refractory material layer, extend to the upper part of the refractory material layer, are arranged in parallel front and back, and are fixedly communicated with a transverse porcelain tube transversely arranged in the refractory material layer; the burner for spraying natural gas is fixedly arranged at the middle position of the butt joint of the two kiln car bodies, and penetrates through the side wall of the shuttle kiln to be fixedly communicated with the natural gas pipeline.
The shuttle kiln comprises a bottom plane, wherein the bottom plane is a ground plane of the shuttle kiln, the kiln body is fixedly arranged at the upper part of the bottom plane, and the bottom plane and the kiln body form an arched cavity of the shuttle kiln; the exhaust gas discharge channel is arranged at the center of the bottom plane; a gap is arranged between the kiln car body and the bottom plane; the sand seal groove is fixedly arranged at the left side and the right side of the kiln body, the refractory material seal protrusions are fixedly arranged at the two sides of the refractory material layer, the refractory material layer is tightly attached to the sand seal groove, and the refractory material seal protrusions form a heat insulation layer for preventing high-temperature air from flowing into the bottom of the kiln car body.
The exhaust pipe passes through the bottom of the bottom plane of the shuttle kiln, one end of the exhaust pipe is fixedly communicated with the exhaust gas discharge channel, and the other end of the exhaust pipe is fixedly communicated with an exhaust port of the exhaust fan.
The left end of the blast hose is in butt joint and screwing with the blast main pipe through a connecting screw thread; the left end of the air draft hose is in butt joint and screwing with the air draft main pipe through a connecting screw thread.
The surface of the blast hose and the surface of the exhaust hose are wound with a layer of high-temperature-resistant asbestos, and steel wires are wound on the surface of the asbestos layer.
The using process of the energy-saving and environment-friendly device for burning organic matters in the nitriding kiln comprises the following steps: the left end of the air blast hose is in butt joint and screwing with the air blast main pipe through a connecting screw thread, the right end of the air blast hose is fixedly communicated with an air outlet of the air blower, and meanwhile, the left end of the air draft hose is in butt joint and screwing with the air draft main pipe through the connecting screw thread, and the right end of the air draft hose is fixedly communicated with an inlet of the air blower. Then, the blower and the exhaust fan are started, at the moment, the air inlet of the blower pumps the gaseous bonding agent gas in the sagger into the blower through the air suction hose, the air suction main pipe and the exhaust porcelain pipe, and meanwhile, the bonding agent gas is conveyed to the upper position of the combustion porcelain pipe through the air outlet of the blower, the air suction hose, the air suction main pipe, the air suction pipe, the transverse porcelain pipe and the combustion porcelain pipe, and at the moment, the natural gas fuel sprayed by the burner burns the gaseous bonding agent gas exhausted through the combustion porcelain pipe. The combustion waste gas generated in the shuttle kiln and outside the sagger is discharged from the shuttle kiln 1 under the suction force of the exhaust fan through the waste gas exhaust pipe, the waste gas discharge channel and the exhaust pipe. The process is the use process of the energy-saving and environment-friendly device for burning the organic matters in the nitriding kiln.
The sagger support refractory material is horizontally fixed around the periphery of the refractory material layer at equal intervals; the sagger is fixedly arranged on the sagger supporting refractory material; the main purpose of the arrangement is to enable the flame sprayed by the burner to contact with the bottom of the sagger on one hand, so that the heating uniformity of the sagger is improved; on the other hand, a space formed between the sagger support refractory and the sagger and a channel for exhausting combustion waste gas are formed between the sagger support refractory and the waste gas exhaust pipe, so that the combustion waste gas generated in the process of calcining the refractory bricks is exhausted by the exhaust fan.
The waste gas exhaust pipe is fixedly arranged at the center of the refractory material layer, and the waste gas exhaust pipe is a vent hole penetrating through the kiln car body and the refractory material layer; the exhaust pipe is L-shaped, and one end of the exhaust pipe corresponds to the exhaust pipe; the main purpose of the arrangement is to discharge the waste gas generated by the calcination of the refractory bricks under the suction of the exhaust fan through the waste gas exhaust pipe, the waste gas exhaust channel and the exhaust pipe.
One end of the blast pipe is vertically and fixedly communicated with the blast main pipe, and the other end of the blast pipe penetrates through the refractory material layer and is vertically and fixedly communicated with the transverse porcelain pipe; the air draft main pipe and the air blast main pipe are fixedly welded in channel steel of the kiln car body, and the air draft main pipe is longitudinally arranged at the right side of the kiln car body; the plug is screwed on the right end of the main air suction pipe, and the upper part of the main air suction pipe is fixedly communicated with the discharge porcelain pipe; the air blast soft pipe hole and the air draft soft pipe hole penetrate through the bottom of the right side wall of the shuttle kiln, are arranged in a front-back parallel manner, and are through holes penetrating through the right side wall of the shuttle kiln; the air blowing hose and the air draft hose respectively penetrate through the air blowing hose hole and the air draft hose hole, the left end of the air blowing hose is fixedly screwed up with the air blowing main pipe, the right end of the air blowing hose is fixedly communicated with the air outlet of the air blower, the left end of the air draft hose is fixedly screwed up with the air draft main pipe, and the right end of the air draft hose is fixedly communicated with the air inlet of the air blower; two binder discharge holes are horizontally and bilaterally symmetrically arranged at the front side of the inner bottom of the sagger, a discharge porcelain tube penetrates through the two binder discharge holes to extend to the inner bottom of the sagger, and the discharge porcelain tube is arranged in the refractory material layer; the inside fixed two that are provided with in the left side of refractory material layer of burning porcelain tube, the upper portion that the burning porcelain tube extends to the refractory material layer, two burning porcelain tubes are front and back parallel arrangement, and two burning porcelain tubes are fixed the intercommunication with the horizontal porcelain tube of transversely setting in the refractory material layer inside. The main purpose of the arrangement is to form a circulating system of the binder gas under the suction effect of the air inlet and the air outlet of the air blower by the air suction hose, the air suction main pipe, the discharge porcelain pipe, the air blowing hose, the air blowing main pipe, the air blowing pipe, the transverse porcelain pipe and the combustion porcelain pipe; on one hand, the combustion heat value is increased, and meanwhile, the combustion amount of natural gas is saved; on the other hand, the gaseous bonding agent gas polluting the environment is combusted to form pollution-free carbon dioxide, so that the problem of environmental pollution caused by directly discharging the gaseous bonding agent gas into the air is thoroughly solved.
The plug is screwed on the right end of the main air draft pipe; the other end of the main ventilation pipe is blocked by the plug, so that ventilation gas is prevented from overflowing.
The surfaces of the air blowing hose and the air exhausting hose are wound with a layer of high-temperature-resistant asbestos, and steel wires are wound on the surfaces of the asbestos layers; the main purpose of this arrangement is to increase the rigidity of the blower hose and the suction hose, on the one hand, to protect them from being burnt by high temperatures, and on the other hand.
The shuttle kiln comprises a bottom plane, wherein the bottom plane is a ground plane of the shuttle kiln, the kiln body is fixedly arranged at the upper part of the bottom plane, and the bottom plane and the kiln body form an arched cavity of the shuttle kiln; the exhaust gas discharge channel is arranged at the center of the bottom plane; a gap is arranged between the kiln car body and the bottom plane; the sand seal groove is fixedly arranged at the left side and the right side of the kiln body, the refractory material seal protrusions are fixedly arranged at the two sides of the refractory material layer, the refractory material layer is tightly attached to the sand seal groove, and the refractory material seal protrusions form a heat insulation layer for preventing high temperature from flowing into the bottom of the kiln car body. The main purpose of this arrangement is to prevent the high temperature gas in the upper part of the kiln car body from flowing into the bottom of the kiln car body, on the one hand protecting the steel plate of the kiln car body, and on the other hand protecting the blast hose, draft hose, blast main pipe and draft main pipe from being burned out by the high temperature gas.
The invention has the beneficial effects that: the technical scheme provides the energy-saving and environment-friendly device for burning the organic matters in the nitriding kiln, which has simple, scientific and reasonable structural design; the invention can solve the problem that the gaseous bonding agent precipitated in the calcining process of the refractory brick blank is directly pumped and discharged to the outside air to pollute the environment, realize the direct combustion of the bonding agent at the burner part, increase the combustion heat, save the natural gas combustion quantity passing through the burner part, reduce the heat energy consumption and protect the environment.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a side view of the present invention;
the marks in the figure: 1. shuttle kiln, 101, bottom plane, 102, kiln body, 103, waste gas discharge channel, 104, sand seal groove, 105, refractory sealing protrusion, 2, kiln car body, 3, refractory layer, 4, sagger support refractory, 5, sagger, 6, waste gas exhaust pipe, 7, exhaust pipe, 8, blast pipe, 9, exhaust main pipe, 10, blast main pipe, 11, plug, 12, blast hose hole, 13, exhaust hose hole, 14, blast hose, 15, exhaust hose, 16, binder discharge hole, 17, discharge porcelain pipe, 18, combustion porcelain pipe, 19, transverse porcelain pipe, 20, burner.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the drawings.
As shown in the figure, the technical scheme adopted by the invention is as follows: an energy-saving and environment-friendly device for burning organic matters in a nitriding kiln comprises a shuttle kiln 1, a kiln car body 2, a refractory material layer 3 and a sagger support refractory material 4; the outer shell of the shuttle kiln 1 is cuboid, and the inner part is dome-shaped; the kiln car body 2 is a mobile kiln car formed by welding channel steel, the kiln car body 2 is arranged on a track in the shuttle kiln 1, the refractory material layer 3 is fixedly arranged at the upper part of the kiln car body 2, and the sagger support refractory materials 4 are horizontally fixed around the refractory material layer 3 at equal intervals; the sagger 5 is fixedly arranged on the sagger support refractory 4; the waste gas exhaust pipe 6 is fixedly arranged at the center of the refractory material layer 3, and the waste gas exhaust pipe 6 is a vent hole penetrating through the kiln car body 2 and the refractory material layer 3; the exhaust pipe 7 is L-shaped, and one end of the exhaust pipe 7 corresponds to the exhaust pipe 6 up and down; one end of the blast pipe 8 is vertically and fixedly communicated with the blast main pipe 10, and the other end of the blast pipe passes through the refractory material layer 3 and is vertically and fixedly communicated with the transverse porcelain pipe 19; the air draft main pipe 9 and the air blast main pipe 10 are fixedly welded in the channel steel of the kiln car body 2, and the air draft main pipe 9 is longitudinally arranged at the right side of the kiln car body 2; the plug 11 is screwed on the right end of the main air suction pipe 9, and the upper part of the main air suction pipe 9 is fixedly communicated with the discharge porcelain pipe 17; the air blast soft pipe hole 12 and the air draft soft pipe hole 13 penetrate through the bottom of the right side wall of the shuttle kiln 1, the air blast soft pipe hole 12 and the air draft soft pipe hole 13 are arranged in a front-back parallel mode, and the air blast soft pipe hole 12 and the air draft soft pipe hole 13 are through holes penetrating through the right side wall of the shuttle kiln 1; the air blast hose 14 and the air draft hose 15 respectively penetrate through the air blast hose hole 12 and the air draft hose hole 13, the left end of the air blast hose 14 is fixedly screwed with the air blast main pipe 10, the right end of the air blast hose 14 is fixedly communicated with the air outlet of the air blower, the left end of the air draft hose 15 is fixedly screwed with the air draft main pipe 9, and the right end of the air draft hose 15 is fixedly communicated with the air inlet of the air blower; two binder discharge holes 16 are horizontally and bilaterally symmetrically arranged at the front side position of the inner bottom of the sagger 5, a discharge porcelain tube 17 passes through the two binder discharge holes 16 to extend to the inner bottom of the sagger 5, and the discharge porcelain tube 17 is arranged inside the refractory material layer 3; two combustion porcelain tubes 18 are fixedly arranged in the left side of the refractory material layer 3, the combustion porcelain tubes 18 extend to the upper part of the refractory material layer 3, the two combustion porcelain tubes 18 are arranged in parallel front and back, and the two combustion porcelain tubes 18 are fixedly communicated with a transverse porcelain tube 19 transversely arranged in the refractory material layer 3; the burner nozzle 20 for spraying natural gas is fixedly arranged in the middle of the butt joint of the two kiln car bodies 2, and the burner nozzle 20 penetrates through the side wall of the shuttle kiln 1 and is fixedly communicated with a natural gas pipeline.
The shuttle kiln 1 comprises a bottom plane 101, wherein the bottom plane 101 is the ground plane of the shuttle kiln 1, a kiln body 2 is fixedly arranged at the upper part of the bottom plane 101, and the bottom plane 101 and the kiln body 2 form an arched cavity of the shuttle kiln 1; the exhaust gas discharge passage 103 is provided at the center position of the bottom plane 101; a gap is arranged between the kiln car body 2 and the bottom plane 101; the sand seal grooves 104 are fixedly arranged at the left side and the right side of the kiln body 2, the refractory sealing bulges 105 are fixedly arranged at the two sides of the refractory layer 3, the refractory layer 3 is tightly attached to the sand seal grooves 104, and a heat insulation layer for preventing high-temperature air from flowing into the bottom of the kiln car body 2 is formed by the refractory sealing bulges 105.
The exhaust pipe 7 passes through the bottom of the bottom plane 101 of the shuttle kiln 1, one end of the exhaust pipe is fixedly communicated with the exhaust gas discharge channel 103, and the other end of the exhaust pipe is fixedly communicated with an exhaust port of the exhaust fan.
The left end of the blast hose 14 is in butt joint and screwed with the blast main pipe 10 through a connecting screw thread; the left end of the air suction hose 15 is in butt joint and screwing with the air suction main pipe 9 through a connecting screw thread.
The surfaces of the blast hose 14 and the draft hose 15 are wound with a layer of high-temperature-resistant asbestos, and steel wires are wound on the surfaces of the asbestos layers.
The using process of the energy-saving and environment-friendly device for burning organic matters in the nitriding kiln comprises the following steps: firstly, the left end of the air blast hose 14 is in butt joint with the air blast main pipe 10 through a connecting screw thread, the right end of the air blast hose 14 is fixedly communicated with an air outlet of an air blower, and meanwhile, the left end of the air draft hose 15 is in butt joint with the air draft main pipe 9 through the connecting screw thread, and the right end of the air draft hose 15 is fixedly communicated with an inlet of the air blower. Then the blower and the exhaust fan are started, at the moment, the air inlet of the blower pumps the gaseous bonding agent gas in the sagger 5 into the blower through the air suction hose 15, the air suction main pipe 9 and the exhaust porcelain pipe 17, and meanwhile, the bonding agent gas is conveyed to the upper position of the combustion porcelain pipe 18 through the air outlet of the blower, the air blowing hose 14, the air blowing main pipe 10, the air blowing pipe 8, the transverse porcelain pipe 19 and the combustion porcelain pipe 18, and at the moment, the natural gas fuel injected by the burner nozzle 20 burns the gaseous bonding agent gas exhausted through the combustion porcelain pipe 18. The combustion exhaust gas generated inside the shuttle kiln 1 and outside the sagger 5 passes through the exhaust gas exhaust pipe 6, the exhaust gas exhaust passage 103 and the exhaust pipe 7, and the combustion exhaust gas in the shuttle kiln 1 is exhausted under the pumping force of the exhaust fan. The process is the use process of the energy-saving and environment-friendly device for burning the organic matters in the nitriding kiln.

Claims (3)

1. An energy-saving and environment-friendly device for burning organic matters in a nitriding kiln comprises a shuttle kiln, a kiln car body, a refractory material layer and a sagger supporting refractory material; the shuttle kiln outer shell is cuboid, and the inside is dome-shaped; the kiln car body is a movable kiln car formed by welding channel steel, the kiln car body is arranged on a track in the shuttle kiln, the refractory material layer is fixedly arranged at the upper part of the kiln car body, and the sagger support refractory materials are horizontally fixed at equal intervals around the refractory material layer; the sagger is fixedly arranged on the sagger supporting refractory material; the method is characterized in that: the waste gas exhaust pipe is fixedly arranged at the center of the refractory material layer, and the waste gas exhaust pipe is a vent hole penetrating through the kiln car body and the refractory material layer; the exhaust pipe is L-shaped, the exhaust pipe penetrates through the bottom of the bottom plane of the shuttle kiln, one end of the exhaust pipe corresponds to the exhaust pipe from top to bottom, one end of the exhaust pipe is fixedly communicated with the exhaust channel, and the other end of the exhaust pipe is fixedly communicated with an exhaust port of the exhaust fan; one end of the blast pipe is vertically and fixedly communicated with the blast main pipe, and the other end of the blast pipe penetrates through the refractory material layer and is vertically and fixedly communicated with the transverse porcelain pipe; the air draft main pipe and the air blast main pipe are fixedly welded in channel steel of the kiln car body, and the air draft main pipe is longitudinally arranged at the right side of the kiln car body; the plug is screwed on the right end of the main air suction pipe, and the upper part of the main air suction pipe is fixedly communicated with the discharge porcelain pipe; the air blast soft pipe hole and the air draft soft pipe hole penetrate through the bottom of the right side wall of the shuttle kiln, are arranged in a front-back parallel manner, and are through holes penetrating through the right side wall of the shuttle kiln; the air blowing hose and the air draft hose respectively penetrate through the air blowing hose hole and the air draft hose hole, the left end of the air blowing hose is fixedly screwed up with the air blowing main pipe, the right end of the air blowing hose is fixedly communicated with the air outlet of the air blower, the left end of the air draft hose is fixedly screwed up with the air draft main pipe, and the right end of the air draft hose is fixedly communicated with the air inlet of the air blower; the surfaces of the air blowing hose and the air exhausting hose are wound with a layer of high-temperature-resistant asbestos, and steel wires are wound on the surfaces of the asbestos layers; two binder discharge holes are horizontally and bilaterally symmetrically arranged at the front side of the inner bottom of the sagger, a discharge porcelain tube penetrates through the two binder discharge holes to extend to the inner bottom of the sagger, and the discharge porcelain tube is arranged in the refractory material layer; two combustion porcelain tubes are fixedly arranged in the left side of the refractory material layer, extend to the upper part of the refractory material layer, are arranged in parallel front and back, and are fixedly communicated with a transverse porcelain tube transversely arranged in the refractory material layer; the burner for spraying natural gas is fixedly arranged at the middle position of the butt joint of the two kiln car bodies, and penetrates through the side wall of the shuttle kiln to be fixedly communicated with the natural gas pipeline.
2. The energy-saving and environment-friendly device for burning organic matters in a nitriding kiln according to claim 1, which is characterized in that: the shuttle kiln comprises a bottom plane, the bottom plane is a ground plane of the shuttle kiln, the kiln body is fixedly arranged at the upper part of the bottom plane, and the bottom plane and the kiln body form an arched cavity of the shuttle kiln; the exhaust gas discharge channel is arranged at the center of the bottom plane; a gap is arranged between the kiln car body and the bottom plane; the sand seal groove is fixedly arranged at the left side and the right side of the kiln body, the refractory material seal protrusions are fixedly arranged at the two sides of the refractory material layer, the refractory material layer is tightly attached to the sand seal groove, and the refractory material seal protrusions form a heat insulation layer for preventing high-temperature air from flowing into the bottom of the kiln car body.
3. The energy-saving and environment-friendly device for burning organic matters in a nitriding kiln according to claim 1, which is characterized in that: the left end of the blast hose is in butt joint and screwing with the blast main pipe through a connecting screw thread; the left end of the air draft hose is in butt joint and screwing with the air draft main pipe through a connecting screw thread.
CN201910412239.2A 2019-05-17 2019-05-17 Energy-saving and environment-friendly device for burning organic matters in nitriding kiln Active CN110094969B (en)

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