CN202792956U - Boiling type fluidization calcinatory - Google Patents
Boiling type fluidization calcinatory Download PDFInfo
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- CN202792956U CN202792956U CN2012204923892U CN201220492389U CN202792956U CN 202792956 U CN202792956 U CN 202792956U CN 2012204923892 U CN2012204923892 U CN 2012204923892U CN 201220492389 U CN201220492389 U CN 201220492389U CN 202792956 U CN202792956 U CN 202792956U
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Abstract
The utility model relates to waste type casting sand or sand regeneration equipment, in particular to a boiling type fluidization calcinatory. The boiling type fluidization calcinatory comprises a calcinatory body, and the calcinatory body is composed of a material distrubition heating chamber which is arranged on the upper portion and a calcination heating chamber which is arranged on the lower portion. A burner is arranged on a chamber wall of the calcination heating chamber, and a material distribution cone is arranged on the upper portion of the cloth heating chamber. The boiling type fluidization calcinatory is characterized in that a heating exchange area is arranged at the bottom of the calcination heating chamber, the burner is arranged above the heat exchange area, an air converging chamber which includes more than one air inlet is fixedly arranged below the calcinatory body, a flue pipe is fixedly arranged on the top wall of the air converging chamber, the lower end of the air pipe is arranged in the air converging chamber, the upper end of the flue pipe is arranged in the heat exchange area, and an air cap is arranged at the upper end of the flue pipe. Under the premise of fully utilizing energy, cooling speed of calcinated materials is quickened, and thus working efficiency of existing waste type casting sand or sand regeneration equipment is improved..
Description
Technical field
The utility model relates to a kind of waste molding sand or core sand regenerating equipment, especially a kind of boiling type fluo solid roaster.
Background technology
In various molding sand or core-sand moulding casting technique, all can produce a large amount of waste molding sands or core sand, waste and old type (core) sand complicated component, kind is various, in order to improve the recycling efficient of waste and old type (core) sand, nearly all resin sand and tide mould sand manufacturing enterprise all are used for moulding and coremaking with old sand after the mechanical friction mode is regenerated; These processing modes are difficult to remove inert coating and the organic matter that the old sand sand grain surface coats, and the regeneration effect that reaches is limited, cause casting quality reduction, hydraulic performance decline.Most enterprises just abandon old sand later through several times reuse, again change fresh sand, cause environmental pollution and cost to improve.The reclaiming utilization of waste and old type (core) sand; be related to the aspects such as casting cost, resources conservation and environmental protection; along with the raising that casting quality is required, from the angle of economy and environmental protection, regenerating used has become indispensable part in the Foundry Production.
Practice shows, the old sand that utilizes the casting of tide mould sand and resin sand to produce adopts thermal reclamation technique can remove preferably organic matter and the inert coating on old sand surface, and regeneration effect is better, can make waste and old type (core) sand obtain reuse.Thermal reclamation is by roaster old sand to be heated to 600-700 ℃, and to remove the renovation process of the flammable residue in old sand surface, thermal reclamation is good especially to the regeneration effect of organic binder bond sand, but cost is higher, and energy consumption is larger, and its use is subject to certain restrictions.
Along with the production domesticization of Chinese large-sized mechanized equipment, especially in industries such as generating, metallurgy, mine, chemical industry, boats and ships, the foundry goods single-piece weight of main equipment reaches hundreds of tons, and this just requires the regeneration treating capacity of waste and old type (core) sand to strengthen thereupon.The lower defective of existing waste and old type (core) the sand recycling equipment ubiquity thermal efficiency, and disposal ability is limited, and treatment effect is general.
Application number is that 2010101972375 Chinese patent application discloses a kind of waste molding sand or core reclaim equiment, this equipment comprises fluo solid roaster, the body of heater of fluo solid roaster is provided with the roasting charging aperture, the roasting discharging opening, air intake passage and air-out passage, the top of fluo solid roaster is provided with the sub-sand heater, the sub-sand heater comprises the sub-sand heating clamber and is installed in the interior sub-sand heating beam of sub-sand heating clamber and cloth cone, the top of sub-sand heating clamber and bottom opening, the cloth cone is arranged on the top open part of sub-sand heating clamber and is fixed on the top of sub-sand heating beam, sub-sand heating clamber top is equipped with lower sand hopper, and lower sand hopper is connected with the cloth cone; The bottom opening of sub-sand heating clamber is connected with the roasting charging aperture of fluo solid roaster, the body of heater of fluo solid roaster is connected with fluidized air blower, the air inlet of fluidized air blower is communicated with the smoke exhaust pipe that sub-sand heater top arranges, and the air outlet of fluidized air blower is communicated with fluo solid roaster bottom air inlet that arrange, that be communicated with the roasting discharging opening of fluo solid roaster; This equipment is when work, with the material (waste molding sand or core) of processing to be clean from described lower sand hopper adding apparatus, the material that is added at first disperses through described cloth cone, material after disperseing falls to sub-sand heating beam from the periphery of cloth cone, further disperse and preheating through sub-sand heating beam, fall at last in the described fluo solid roaster heat treated under fluidized state.It is pointed out that the sub-sand heater is the waste heat that comes from fluo solid roaster to the required heat of heating material, in the course of work, fluidized air blower constantly draws the heat that equipment is discharged in backflowization roaster and the sub-sand heater.Be not difficult to find out from its course of work, the said equipment processes, utilizes the preheating program of waste heat all to increase treatment effeciency to material under fluidized state material, in addition, utilizes waste heat to come that material is carried out the pre-heat treatment and also takes full advantage of energy, save resource, reduced cost.
But, above-mentioned waste molding sand or core reclaim equiment still exist the some shortcomings part, at first, because the gas that enters below it is the residual air through burning that discharge the equipment top, therefore the one side meeting is so that the sand grains through roasting of equipment below is difficult to cooling, reduced the collection efficiency to the sand grains after the roasting, in other words, although be that the said equipment has utilized waste heat, take full advantage of energy, but but reduced the collection efficiency to the sand grains of processing, be difficult to improve on the whole the operating efficiency of equipment, on the other hand, because the gas of introducing from equipment below is the residual air through burning, therefore also exist the problem that wherein combustion-supporting gas (oxygen) can't satisfy the burning needs, so that the fuel that sprays in the burner is difficult to abundant burning, cause on the one hand the waste to resource, pollute the environment on the other hand, the utilization of waste heat is lost more than gain; Secondly, because the material in the adding equipment all flows downward from the periphery that cloth is bored after described cloth cone disperses, this is just so that device interior locates to form a work blind area under the cloth cone, can't take full advantage of the space of device interior, reduced its operating efficiency, moreover, since between lower sand hopper and the roaster without filter, therefore the impurity that is mingled with in the material very likely can destroy the fluidization reaction of equipment bottom, reduces reaction efficiency.Be that the said equipment still exists inefficient problem.
Summary of the invention
The purpose of this utility model is to provide a kind of boiling type fluo solid roaster, taking full advantage of under the prerequisite of energy the cooling velocity of accelerating through the material of roasting, thereby improves the operating efficiency of existing waste molding sand or core reclaim equiment.
In order to address the above problem, boiling type fluo solid roaster of the present utility model is by the following technical solutions: the boiling type fluo solid roaster, comprise body of heater, have superposed cloth heating clamber in the described body of heater and be positioned at the baking heat chamber of bottom, the locular wall of baking heat chamber is provided with burner, the top of cloth heating clamber is provided with the cloth cone, it is characterized in that, the bottom of heating clamber is provided with heat exchange zone, described burner is positioned at the heat exchange zone top, the below of body of heater is fixedly installed the remittance air chamber that comprises an above air intlet, be fixedly installed airduct on the roof of remittance air chamber, the lower end of described airduct is arranged in the remittance air chamber, and the upper end of airduct is positioned at described heat exchange zone and is provided with blast cap.
Also comprise vomit pipe, described vomit pipe pass along the vertical direction converge air chamber and with converge top, the diapire of air chamber and be sealed and matched.
Be provided with the protection liner in the baking heat chamber of described body of heater, be provided with insulating sandwich between the internal face of the outside wall surface of protection liner and the corresponding position of body of heater.
Described body of heater is provided with the thermocouple for detection of temperature in the body of heater.
The upper and lower of described body of heater respectively is provided with access door.
Be provided with at least one deck back taper sieve in the body of heater in the below of cloth cone, what the back taper sieve had the material admitting to fall from the top connects the sand mouth.
The sieve aperture of described back taper sieve increases from top to bottom gradually.
Described back taper sieve has two-layer above and set gradually from top to bottom, two sieve apertures on being positioned at two adjacent back tapers sieve are at it when the height and position on the back taper sieve at place is identical separately, are positioned on the back taper sieve of below one in this two sieve aperture greater than another.
Described back taper sieve has two-layer above and set gradually from top to bottom, is positioned at the sieve aperture of below in the adjacent two layers back taper sieve greater than one the sieve aperture that is positioned at the top.
Because boiling type fluo solid roaster of the present utility model is provided with heat exchange zone in the bottom of its heating clamber, burner is positioned at the heat exchange zone top, the below of body of heater is fixedly installed the remittance air chamber that comprises an above air intlet, be fixedly installed airduct on the roof of remittance air chamber, the lower end of described airduct is arranged in the remittance air chamber, and the upper end of airduct is positioned at described heat exchange zone and is provided with blast cap; Therefore, when the material (old sand) in the process of using in the adding stove is bored through cloth at furnace roof, the fume afterheat heating of at first being risen in the stove, realize heat exchange, simultaneously, old sand is broken up into fluidised form, enters evenly, slowly burner hearth, the further baking heat of the burned device of old sand, the surface organic matter burning; Sand grains process after the roasting is carried out heat exchange with the air in the airduct, accelerates the cooling of baked grit, the convenient collection; Simultaneously, roasting after heat sand adds the air in the warm-air pipe, making it become hot-air enters in the burner hearth, make the old sand burning of burner hearth, realize heat exchange, in sum, boiling type fluo solid roaster of the present utility model not only can utilize energy fully, and can accelerate cooling, the collection efficiency of treated grit; Take full advantage of the cooling velocity of accelerating under the prerequisite of energy through the material of roasting, thereby improving the operating efficiency of existing waste molding sand or core reclaim equiment.
Description of drawings
Fig. 1 is the structural representation of the embodiment 1 of boiling type fluo solid roaster of the present utility model;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the A-A cutaway view of Fig. 2;
Fig. 4 is the B-B cutaway view of Fig. 1;
Fig. 5 is the C-C cutaway view of Fig. 1;
Fig. 6 is the D-D cutaway view of Fig. 3.
The specific embodiment
The embodiment 1 of boiling type fluo solid roaster of the present utility model, shown in Fig. 1-6, comprise body of heater 11, the top of body of heater 11 is provided with smoke exhaust pipe 12, and smoke exhaust pipe 12 comprises vertical section of being fixed together with body of heater 11 and the vertical horizontal segment that is connected with vertical section, intercommunication between described vertical section and the horizontal segment, in addition, vertically the top of section is provided with loading hopper 13, and the discharging opening of loading hopper 13 is communicated with a passage, and the lower end of passage extends in the inner chamber of body of heater 11; Have superposed cloth heating clamber and the baking heat chamber that is positioned at the bottom in the inner chamber of body of heater 11, be fixedly installed cloth cone 15 by support 14 in the described cloth heating clamber, the below of cloth cone 15 is provided with back taper sieve 16, in this enforcement, back taper sieve 16 has three layers and arrange successively from top to bottom, wherein the sieve aperture on each back taper sieve all increases from top to bottom gradually, two sieve apertures on being positioned at two adjacent back tapers sieve are at it when the height and position on the back taper sieve at place is identical separately, one on the back taper sieve below being positioned in this two sieve aperture greater than another, this is in order to prevent material blockage phenomenon in the process that falls through the back taper sieve, in addition, because the existence of back taper sieve 16, can be so that material be covered with the baking heat chamber to the periphery from the centre when entering the baking heat chamber, take full advantage of the space in the baking heat chamber, improve the operating efficiency of roaster, moreover from cloth cone 15 materials that flow down also easier uniform fluidisation after filtering through three grades of back tapers sieves, help next step fluidised formation; Be provided with protection liner 17 in the baking heat chamber, protection liner 17 is formed by refractory brick, body of heater 11 is provided with insulating sandwich 18 at the internal face at baking heat chamber place with protecting between the liner 17, insulating sandwich 18 can prevent the loss of furnace heat effectively, take full advantage of energy, in addition, the mid portion of the locular wall of baking heat chamber is provided with burner 19, burner 19 inlet ends are provided with natural gas ratio adjusting valve 20 and combustion air electric butterfly valve 30, burner has four in the present embodiment, four burners are distributed on the locular wall of baking heat chamber at the center line of sustained height around body of heater, the center line of each burner is obliquely installed in short transverse and body of heater 11, be the setting angle with body of heater 11 in the horizontal direction, can make like this being distributed in the baking heat chamber of even flame of burner 19 ejection, help the homogeneous heating to material; The bottom of baking heat chamber is provided with heat exchange zone, the below of heat exchange zone is provided with remittance air chamber 21, the air chamber 21 that converges has air inlet and is connected with air inlet pipe 22 by air inlet, the quantity of air inlet and air inlet pipe 22 can arrange as required, converge the fixing airduct 23 that is provided with on the roof of air chamber 21, the air inlet of airduct 23 is positioned at the lower end, the lower end of airduct 23 is arranged in the remittance air chamber, its upper end is passed to converge and is entered the baking heat chamber and be provided with blast cap 24 behind the roof of air chamber, so far airduct forms heat exchanger, when roaster is worked, the cold air that enters the remittance air chamber from blast pipe enters in the baking heat chamber via airduct, thereby with the material-heat-exchanging that heats and be deposited on heat exchange zone through burner, can accelerate on the one hand the cooling of material, convenient collection to material can be heated the air that enters in the baking heat chamber by the waste heat of material on the other hand, realizes the recycling of energy; The below of remittance air chamber is provided with discharge bin 25, discharge bin 25 is communicated with the baking heat chamber by vomit pipe 26, vomit pipe 26 run through along the vertical direction converge air chamber top, diapire and be sealed and matched with it, the upper, middle and lower section of body of heater is provided with respectively thermocouple 27, in addition, the upper and lower part of body of heater also is respectively equipped with access door 28, the middle part is provided with observation window 29.
This roaster is when work, add the interior material (old sand) of stove when furnace roof is bored through cloth, the fume afterheat heating of at first being risen in the stove, realize heat exchange, simultaneously, old sand is broken up into fluidised form, enters evenly, slowly burner hearth, the burning of old sand surface organic matter, the burned device of old sand further heats; Can control the temperature of regional in the body of heater by three layers of thermocouple temperature measurement; Sand grains after the roasting carries out heat exchange through airduct and cold air, temperature reduces and drops in the discharge bin by vomit pipe, and simultaneously, roasting after heat sand adds the cold air in the warm-air pipe, making it become hot-air enters in the burner hearth, make the old sand burning of burner hearth, realize heat exchange, not only can improve the heat utilization efficiency of equipment, and hot-air can also make old sand reach boiling, agitated conditions in lower furnace portion, make the sand temperature even, sufficient combustion improves regeneration effect.This device structure exchanges by two levels of thermal, and the heat utilization efficiency of Effective Raise equipment has reduced cost, and demoulding is effective.
In other embodiment of boiling type fluo solid roaster of the present utility model, the back taper sieve described in above-described embodiment 1 can also only have one deck; The slot size of each layer back taper sieve can also equate, in such cases, can make the sieve aperture that is positioned at the below in the adjacent two layers back taper sieve greater than one the sieve aperture that is positioned at the top.
Claims (9)
1. boiling type fluo solid roaster, comprise body of heater, have superposed cloth heating clamber in the described body of heater and be positioned at the baking heat chamber of bottom, the locular wall of baking heat chamber is provided with burner, the top of cloth heating clamber is provided with the cloth cone, it is characterized in that, the bottom of baking heat chamber is provided with heat exchange zone, described burner is positioned at the heat exchange zone top, the below of body of heater is fixedly installed the remittance air chamber that comprises an above air intlet, be fixedly installed airduct on the roof of remittance air chamber, the lower end of described airduct is arranged in the remittance air chamber, and the upper end of airduct is positioned at described heat exchange zone and is provided with blast cap.
2. boiling type fluo solid roaster according to claim 1 is characterized in that, also comprises vomit pipe, described vomit pipe pass along the vertical direction converge air chamber and with converge top, the diapire of air chamber and be sealed and matched.
3. boiling type fluo solid roaster according to claim 1 is characterized in that, is provided with the protection liner in the baking heat chamber of described body of heater, is provided with insulating sandwich between the internal face of the outside wall surface of protection liner and the corresponding position of body of heater.
4. boiling type fluo solid roaster according to claim 1 is characterized in that, described body of heater is provided with the thermocouple for detection of temperature in the body of heater.
5. boiling type fluo solid roaster according to claim 1 is characterized in that, the upper and lower of described body of heater respectively is provided with access door.
6. each described boiling type fluo solid roaster is characterized in that according to claim 1-5, is provided with at least one deck back taper sieve in the body of heater in the below of cloth cone, and what the back taper sieve had the material admitting to fall from the top connects the sand mouth.
7. boiling type sulfidation roasting stove according to claim 6 is characterized in that, the sieve aperture of described back taper sieve increases from top to bottom gradually.
8. boiling type fluo solid roaster according to claim 7, it is characterized in that, described back taper sieve has two-layer above and set gradually from top to bottom, two sieve apertures on being positioned at two adjacent back tapers sieve are at it when the height and position on the back taper sieve at place is identical separately, are positioned on the back taper sieve of below one in this two sieve aperture greater than another.
9. boiling type fluo solid roaster according to claim 6 is characterized in that, described back taper sieve has two-layer above and set gradually from top to bottom, is positioned at the sieve aperture of below in the adjacent two layers back taper sieve greater than one the sieve aperture that is positioned at the top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204923892U CN202792956U (en) | 2012-09-25 | 2012-09-25 | Boiling type fluidization calcinatory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204923892U CN202792956U (en) | 2012-09-25 | 2012-09-25 | Boiling type fluidization calcinatory |
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| Publication Number | Publication Date |
|---|---|
| CN202792956U true CN202792956U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204923892U Expired - Fee Related CN202792956U (en) | 2012-09-25 | 2012-09-25 | Boiling type fluidization calcinatory |
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| CN (1) | CN202792956U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914154A (en) * | 2012-09-25 | 2013-02-06 | 机械工业第四设计研究院 | Boiling fluidizing roasting furnace |
| CN103894538A (en) * | 2014-04-24 | 2014-07-02 | 青岛大学 | Precoated sand hot-process regeneration equipment and regeneration method |
| CN114812183A (en) * | 2022-04-22 | 2022-07-29 | 驻马店市新创业管桩附件有限公司 | Precoated sand regenerating furnace capable of utilizing heat |
-
2012
- 2012-09-25 CN CN2012204923892U patent/CN202792956U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914154A (en) * | 2012-09-25 | 2013-02-06 | 机械工业第四设计研究院 | Boiling fluidizing roasting furnace |
| CN102914154B (en) * | 2012-09-25 | 2015-03-04 | 机械工业第四设计研究院 | Boiling fluidizing roasting furnace |
| CN103894538A (en) * | 2014-04-24 | 2014-07-02 | 青岛大学 | Precoated sand hot-process regeneration equipment and regeneration method |
| CN103894538B (en) * | 2014-04-24 | 2015-11-18 | 青岛大学 | Precoated sand thermal reclamation equipment and renovation process thereof |
| CN114812183A (en) * | 2022-04-22 | 2022-07-29 | 驻马店市新创业管桩附件有限公司 | Precoated sand regenerating furnace capable of utilizing heat |
| CN114812183B (en) * | 2022-04-22 | 2024-06-11 | 驻马店市新创业管桩附件有限公司 | Precoated sand regenerating furnace capable of utilizing heat |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: MECHANICAL INDUSTRY FOURTH DESIGN + RESEARCH INSTI Free format text: FORMER NAME: NO.4 MACHINERY INDUSTRY DESIGN INST. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 471039 No. 13, Xiyuan Road, Jianxi District, Henan, Luoyang Patentee after: Mechanical Industry fourth Design & Research Institute Co., Ltd. Patentee after: Shanxi Sanlian Casting Co.,Ltd. Address before: 471039 No. 13, Xiyuan Road, Jianxi District, Henan, Luoyang Patentee before: No.4 Machinery Industry Design Inst. Patentee before: Shanxi Sanlian Casting Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20140925 |
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| EXPY | Termination of patent right or utility model |