CN2545198Y - Device for producing raw cyanuric acid by direct heating in tube - Google Patents
Device for producing raw cyanuric acid by direct heating in tube Download PDFInfo
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- CN2545198Y CN2545198Y CN 02214242 CN02214242U CN2545198Y CN 2545198 Y CN2545198 Y CN 2545198Y CN 02214242 CN02214242 CN 02214242 CN 02214242 U CN02214242 U CN 02214242U CN 2545198 Y CN2545198 Y CN 2545198Y
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- reaction tubes
- crude product
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- acid crude
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Abstract
A production device which can produce isocyanuric acid crude product with direct heating method in tube belongs to the technical field of chemical equipments. The solved problem is that the production level of isocyanuric acid crude product is promoted by the production device with the direct heating method in tube and the obvious economic benefic is obtained. The utility model comprises a trough, a reaction pipe, a charging oil cylinder and a plunger; one end of the plunger is extended into the reaction pipe and the other end is connected with the piston rod of the charging oil cylinder; the discharge hole arranged on the other end of the reaction pipe is equipped with a sealing cover which can be opened, the trough and the reaction pipe are provided with a interlayer wall structure. The utility model can implement the pyrolytic reaction in a fully closed state and the recovery rate of subliming carbamide and ammonia is high and the thermal efficiency of fully utilizing heat energy is high; the utility model can realize the automatic delivery of fused carbamide and the automatic discharge of isocyanuric acid crude product; the adhesive materials is not easy to leave on the internal wall of the reaction pipe, the internal wall does not need to wash frequently; the utility model is easy to realize the automatic control of the whole process and can promote the production process level of isocyanuric acid crude product and can obtain good economic benefit; the utility model is fit for replacing the present production device of isocyanuric acid crude product.
Description
Technical field
The utility model relates to cyanuric acid crude product production equipment, belongs to technical field of chemical.
Background technology
The cyanuric acid crude product be a kind of be the Chemicals of raw material with urea, form by pyrolytic reaction, can be used as the raw material of producing sterilizing agent or coating.Its reaction process is: the granular urea raw material is heated to form molten earlier at a certain temperature, carries out pyrolytic reaction then under higher temperature, produces cyanuric acid and ammonia in the reaction process, and simultaneously, a part of urea distillation is gaseous state.Pyrolysis way divides two kinds of solid phase method and liquid phase methods.The liquid phase method pyrolysis way is to be high-temperature solvent with meta-cresol etc., and pyrolysis reaction temperature is lower, yield is high, but employed high-temperature solvent costs an arm and a leg, the solvent recuperation long flow path, and the production cost height now all seldom adopts both at home and abroad.Solid-phase pyrolysis divides direct pyrolysis of granular urea and crude product returning charge continuous pyrolysis dual mode.The former directly puts into tunnel furnace and carries out pyrolytic reaction and obtain the cyanuric acid crude product the enamel of granular urea or earth pot container are housed.The tunnel furnace structural volume that this method is used is huge, false air coefficient is big, about 17.68% distillation urea can't reclaim in the pyrolysis, ammonia content in the ammonia of kiln exit has only about 4%, container consumption such as urea raw material and enamel basin are big, add and pine for a large amount of freezing airs and enter to be heated in the stove when spending 300 more and discharge, cause a large amount of wastes of the energy and influence stove thermo-efficiency, also have problems such as work situation is poor, labour intensity height simultaneously.Latter's crude product returning charge continuous pyrolysis mode is that the cyanuric acid crude product that previous reacting by heating generates is returned with fusing urea pyrolysis way of heating continuously in a section or two sections rotary kilns.This method can reclaim distillation urea, urea raw material consumption is lower, but have that the heating unit system is huge, device structure is complicated, when making deficiencies, particularly crude product returning charge such as difficulty and returning (near 90%) with larger proportion, increase amount of finish, reduced thermo-efficiency.Simultaneously, can't avoid the adhesion problem of equipment such as rotary kiln, the influence of normal therefore frequent shutdown cleaning equipment is produced.The process for processing of existing cyanuric acid crude product is subjected to the restriction of heating unit, is in lower state of the art all the time, and the production cost height is low in economic efficiency.
Summary of the invention
Technical problem to be solved in the utility model provides snead process production equipment in a kind of cyanuric acid crude product pipe, and this device should be able to effectively improve the production level of cyanuric acid crude product, reduces cost, and obtains distinct economic.
The utility model is realized with following technical solution:
Snead process production equipment in a kind of cyanuric acid crude product pipe, comprise hopper 1 in the formation, reaction tubes 2, pusher oil cylinder 3, plunger 4, plunger one end stretches in the reaction tubes, the other end is connected with the piston rod of pusher oil cylinder, the reaction tubes the other end is discharge port 2-1, this discharge port is provided with openable sealing cover 5, hopper and reaction tubes are the interlayer wall construction, hopper is provided with opening for feed 1-1, discharge port, ammonia emission mouth 1-3, and the thermal source that communicates with interlayer wall inlet 1-4, outlet 1-5, reaction tubes is provided with opening for feed 2-1 and the thermal source that communicates with the interlayer wall advances, outlet 2-3,2-4, the hopper discharge port is connected with the reaction tubes opening for feed.
Snead process production equipment in the above-mentioned cyanuric acid crude product pipe, described hopper is horizontal tube, described reaction tubes is vertical socket, the horizontal stack shell lower part of hopper is the interlayer wall, and the vertical stack shell of reaction tubes below 4/5 part is the interlayer wall, and the charging and discharging mouth of hopper and ammonia outlet are located at horizontal stack shell upper part, wherein, be provided with discharge nozzle 1-2 in the discharge port, discharge nozzle one end is connected with the reaction tubes opening for feed, the other end stretches into the hopper bottom, and the opening for feed of reaction tubes is located at the stack shell upper end.
Be easy-unloading, snead process production equipment in the above-mentioned cyanuric acid crude product pipe, described sealing cover has automatic open close mechanism, this mechanism comprises keying oil cylinder 6, pivot arm 7, pivot arm one end is connected with sealing cover, the other end is connected with the piston rod of keying oil cylinder, and the cylinder body tail end of pivot arm intermediary fulcrum and keying oil cylinder is hinged with reaction tubes respectively.
The utility model tool adopts the socket shape hopper and the reaction vessel of interlayer wall construction, can realize expecting the automatic transport of fusing urea and the automatic discharging of cyanuric acid crude product by pusher oil cylinder and plunger etc., the pyrolytic reaction process can be carried out under full closeding state, has following characteristics in the use:
1. because the pyrolytic reaction process does not have the gas leakage point under full closeding state, but so ammonia in the efficient recovery reaction process and distillation urea, the rate of recovery can be up to more than 95%, to produce 1.2 ten thousand tons of cyanuric acid crude products per year, compare with the tunnel like device, only just can many extra earnings more than 400 ten thousand yuan because of the distillation urea recovery section, the high density ammonia of Hui Shouing (concentration can reach more than 95%) can be formed directly in liquefied ammonia in addition, extra earning can be further increased, remarkable economic efficiency can be obtained so use the utility model to produce the cyanuric acid crude product;
2. the fusing urea in the hopper is passed in the big calorimetric that it can be carried after entering hopper of distillation urea of Hui Shouing and ammonia, it is calculated that, 80% of the suitable urea raw materials melt of this part heat pyrolysis time institute heat requirement, so can reduce heat energy consumption greatly, during using, non-tunnel formula heating unit enters the problem that influences thermo-efficiency and waste energy because of freezing air, can reduce the pyrolytic reaction time at double, greatly reduce production cost and improved throughput simultaneously;
3. on reaction tubes, install the design of pusher oil cylinder and plunger additional, in automatic transport that can realize expecting fusing urea and reaction tubes the discharging of cyanuric acid crude product, because contacting between plunger and the reaction tubes for cooperatively interacting, so can not retain the material adhesive on the reaction tube in the discharge process, the trouble of not having frequent cleaning tank body, make to the utlity model has good working performance, and tool distinguishing feature easy to use;
4. the sealing cover automatic open close mechanism that provides has made things convenient for the opening and closing of sealing cover, cooperates with the pusher oil cylinder, is easy to the automatization of implementation procedure control;
5. constitute brief compactness, simple in structure being easy to of major parts processed, and with less investment under the throughput, is easy to promote;
6. production process safety, health, work situation is good, and labour intensity is low.
To sum up, adopting the utility model to produce the cyanuric acid crude product has and is suitable for the production technique level that improves the cyanuric acid crude product, reduces cost, boosts productivity, obtains good economic benefit, suitable regeneration product as existing cyanuric acid crude product production equipment.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the left view of hopper 1 among Fig. 1.
Embodiment
Consult Fig. 1,2, in the illustrated embodiment, when lower part of horizontal tube hopper 1 is double wall, can exempt the inconvenience of the interlayer wall of coming in and going out when tube top opening for feed 1-1 and ammonia outlet 1-3 discharge nozzle 1-2 install; In like manner, the solid wall part that leaves above reaction tubes 2 stack shells can make things convenient for the installation of opening for feed 2-1.Hopper discharge nozzle 1-2 outlet is connected with reaction tubes opening for feed 2-1, pot bottom is then stretched in import.Hopper 1 interlayer wall inner stuffing is water vapor or thermal oil, and thermal source inlet 1-4 and outlet 1-5 are respectively applied for input and discharge heat-conducting medium; Be high-temperature fusion salt in the interlayer wall of reaction tubes 2, thermal source import and export 2-3,2-4 are used for the input and the discharging of medium of fused salt.Ammonia outlet 1-3 is connected with the ammonia retrieving arrangement by pipeline on the hopper.
Still consult Fig. 1, in the illustrated embodiment, sealing cover 5 has automatic open close mechanism, and the pivot arm 7 in the opening and closing mechanism is hinged on the vertical stack shell bottom of hopper 2 by ramuscule support 8, and sealing cover was opened when pivot arm rotated by direction as shown, otherwise closed.
Use production process of the present utility model to be: granular urea is entered in the horizontal hopper 1 by opening for feed 1-1, melted by water vapor in the interlayer wall or heat-conducting oil heating, fusing urea enters in the reaction tubes 2 by discharge nozzle 1-2, carry out the pyrolysis condensation reaction when melting salt is heated to required temperature of reaction in the reaction tubes interlayer wall, the distillation urea and the ammonia of emitting in the reaction return in the hopper along discharge nozzle 1-2, distillation urea is absorbed by the fusing urea in the hopper to be stayed in the hopper, and the high density ammonia is disposed to the ammonia retrieving arrangement by ammonia outlet 1-3 after heat of high temperature is passed to fusing urea.Fusing urea was condensed into cyanuric acid crude product (having a small amount of side reaction to generate cyanuric acid monoamide, cyanurdiamide etc.) in about 2 hours in reaction tubes, open and close oil cylinder 6 actions this moment and open sealing cover 5, pusher oil cylinder 3 action drives plunger 4 subsequently is descending, when plunger is descending cyanuric acid crude product in the reaction tubes is discharged reaction tubes, open and close oil cylinder and pusher oil cylinder return successively after the emptying, sealing cover 5 is closed, plunger is up, plunger 4 forms vacuum force when up, the fusing urea in the hopper is inhaled into and enters next circulating reaction process in the reaction tubes.
Claims (3)
1. snead process production equipment in the cyanuric acid crude product pipe, it is characterized in that, constitute and comprise hopper [1], reaction tubes [2], pusher oil cylinder [3], plunger [4], plunger one end stretches in the reaction tubes, the other end is connected with the piston rod of pusher oil cylinder, the reaction tubes the other end is discharge port [2-1], this discharge port is provided with openable sealing cover [5], hopper and reaction tubes are the interlayer wall construction, hopper is provided with opening for feed [1-1], discharge port, ammonia emission mouth [1-3] and the thermal source inlet [1-4] that communicates with the interlayer wall, outlet 1-5, reaction tubes is provided with opening for feed [2-1] and the thermal source that communicates with the interlayer wall advances, outlet [2-3], [2-4], the hopper discharge port is connected with the reaction tubes opening for feed.
2. snead process production equipment in the cyanuric acid crude product pipe according to claim 1, it is characterized in that, described hopper is horizontal tube, described reaction tubes is vertical tube, the horizontal stack shell lower part of hopper is the interlayer wall, the vertical stack shell of reaction tubes below 4/5 part is the interlayer wall, the charging and discharging mouth of hopper and ammonia outlet are located at horizontal stack shell upper part, wherein, discharge nozzle [1-2] is arranged in the discharge port, discharge nozzle one end is connected with the reaction tubes opening for feed, the other end stretches into the hopper bottom, and the opening for feed of reaction tubes is located at the stack shell upper end.
3. snead process production equipment in the cyanuric acid crude product pipe according to claim 2, it is characterized in that, described sealing cover has automatic open close mechanism, this mechanism comprises keying oil cylinder [6], pivot arm [7], pivot arm one end is connected with sealing cover, the other end is connected with the piston rod of keying oil cylinder [6], and the cylinder body tail end of pivot arm intermediary fulcrum and keying oil cylinder is hinged with reaction tubes respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02214242 CN2545198Y (en) | 2002-04-19 | 2002-04-19 | Device for producing raw cyanuric acid by direct heating in tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02214242 CN2545198Y (en) | 2002-04-19 | 2002-04-19 | Device for producing raw cyanuric acid by direct heating in tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2545198Y true CN2545198Y (en) | 2003-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02214242 Expired - Fee Related CN2545198Y (en) | 2002-04-19 | 2002-04-19 | Device for producing raw cyanuric acid by direct heating in tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2545198Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300119C (en) * | 2005-10-11 | 2007-02-14 | 河北冀衡化学股份有限公司 | Process for preparing cyanuric acid |
| CN110975531A (en) * | 2019-12-31 | 2020-04-10 | 河北六合化工有限公司 | Ammonia gas treatment method in cyanuric acid production |
-
2002
- 2002-04-19 CN CN 02214242 patent/CN2545198Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300119C (en) * | 2005-10-11 | 2007-02-14 | 河北冀衡化学股份有限公司 | Process for preparing cyanuric acid |
| CN110975531A (en) * | 2019-12-31 | 2020-04-10 | 河北六合化工有限公司 | Ammonia gas treatment method in cyanuric acid production |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |