CN201855644U - Washing tower - Google Patents
Washing tower Download PDFInfo
- Publication number
- CN201855644U CN201855644U CN201120052670XU CN201120052670U CN201855644U CN 201855644 U CN201855644 U CN 201855644U CN 201120052670X U CN201120052670X U CN 201120052670XU CN 201120052670 U CN201120052670 U CN 201120052670U CN 201855644 U CN201855644 U CN 201855644U
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- tower
- still
- scrubbing
- tower body
- condenser
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Abstract
The utility model provides a washing tower, which comprises a tower kettle, a tower body arranged on the tower kettle and a condenser (11), wherein a synthesis gas inlet (10) is arranged on the tower kettle, and one or a plurality of tower trays (4) which can contain liquid with a certain height are arranged inside the tower body. The top of the tower body is provided with a synthesis gas outlet (1), the tower body between the tower trays and the synthesis outlet (1) is provided with a condensed fluid inlet (3), the synthesis gas outlet (1) is communicated with an input end of the condenser (11), and an output end of the condenser (11) is communicated with the condensed fluid inlet (3). The washing tower can effectively cleanse silica dust in chlorosilane and high boiling point substance, and decrease the content of high boiling point substance and the silica dust, thereby effective dedusting can be achieved.
Description
Technical field
The utility model relates to a kind of scrubbing tower, relates in particular to a kind of scrubbing tower that utilizes gas-solid liquid three-phase separation method to come the purified chlorosilane synthesis gas.
Background technology
In the monomer of chlorosilane is produced, except containing silicon tetrachloride and trichlorosilane, also can contain a spot of solid silica dust and high boiling component in the mix monomer behind fluid bed, solid silica dust and high boiling component are impurity, therefore they must be separated.In modern technologies, the method for removing the impurity in the fluid bed tail gas mainly contains two kinds of dry method dust and wet dedustings.Dry method dust generally adopts the method for cloth envelop collector and screen pack to remove impurity, generally often the aperture of filter screen is bigger for the flow velocity that do not influence fluidized bed gas, therefore can only filter the material of diameter more than 1mm by this method, and more tiny impurity can enter follow-up equipment, cause the serious obstruction of follow-up equipment, and the screen pack that stops up can only clean manually, not only troublesome poeration, and can cleaning person's the person be damaged, thereby on using, be subjected to certain restriction.It is higher that dry method dust efficient is compared in wet dedusting, and available devices is also many as: Venturi scrubbing groove, multiple spray keep off washer etc. again.
Solid silica dust and high boiling component method commonly used are to select scrubbing tower for use in the removal chlorosilane synthesis gas at present, and existing scrubbing tower device structure is single, can not effectively silica dust in the chlorosilane synthesis gas and high boiling component be separated, the effect of removing silica dust and high boiling component is relatively poor, do not reach desirable dust removing effects, very big to the quality influence of product chlorosilane.
The utility model content
Technical problem to be solved in the utility model is at scrubbing tower above shortcomings in the prior art, provides a kind of and can effectively remove the silica dust in the chlorosilane synthesis gas and the scrubbing tower of high boiling product, low, the good dedusting effect of this scrubbing tower cost.
The technical scheme that solution the utility model technical problem is adopted is that this scrubbing tower comprises tower still and the tower body of being located on the tower still, also include condenser, have the synthesis gas inlet on the described tower still, tower body inside is provided with one or more layers tower tray that can hold the liquid of certain altitude, the tower body top has syngas outlet, on the tower body between described tower tray and the syngas outlet, have the condensate liquid inlet, described syngas outlet is communicated with the input of condenser, and the output of described condenser is communicated with described condensate liquid inlet.
Wherein, be fixed with one or more layers tower tray fixed support in the tower body from down to up, tower tray fixed support and its upper space form tower tray jointly.
Preferably, be provided with the reboiler that is used to heat in the described tower still.
Preferably, the temperature of described tower still is 80 ℃～90 ℃, and the temperature at tower body top is about 65 ℃.
Preferably, the bottom of described tower still is cylindrical, and its top that combines with tower body is cone shape, and tower body is cylindrical, and the top of tower still and the bottom of tower body are combined as a whole.The transition of tower still and tower body is tapered, and tower still space is bigger, can not only effectively cushion synthesis gas, and operating personnel are overhauled conveniently.
The diameter of tower still bottom is 1300mm, and the diameter of tower body is 900mm, and the liquid height in the described tower still is 1000mm.Normal height liquid seal in the tower still is controlled jointly by temperature and pressure in the tower, wherein temperature comprises gas feed temperature and tower top temperature, and pressure comprises pressure reduction between tower (scrubbing tower inlet pressure and tower top pressure poor) and condenser pressure reduction (cat head and condensator outlet pressure poor)
Preferably, tower still bottom has the high boiling product outlet.
Preferably, on the described tower body, be provided with the flange end socket between syngas outlet and the condensate liquid inlet, tower still middle part is provided with the manhole flange, to make things convenient for overhaul of the equipments and cleaning.
Keep at a certain distance away on the tower still and have two liquid level gauge ports.
Also Pressure gauge can be respectively arranged with on tower still and the tower body, also thermometer can be respectively arranged with on tower still and the tower body.
Synthesis gas enters scrubbing tower by the synthesis gas inlet, the circulating fluid of assembling on the scrubbing tower tower tray absorbs, remove dust and high boiling component in the synthesis gas, clean gas is discharged from syngas outlet at last, synthesis gas then enters in the condenser through the liquid that condensation is got off from gas behind the tower tray, and is entered in the tower body by the condensate liquid inlet, falls into and forms circulating fluid on the tower tray, silica dust and high boiling product then fall in the tower still, discharge from the high boiling product outlet.
The utility model is the improvement that the physico-chemical property at the chlorosilane synthesis gas carries out, it utilizes the circulation technology of chlorosilane effectively to remove silica dust and high boiling product component in the chlorosilane synthesis gas, reduce high boiling product and the shared degree of silica dust, reach the purpose of effective dedusting, reduce security risk, improve the quality of products, and lower to the requirement of equipment, reduced energy consumption and equipment cost, can realize that the long period of scrubbing tower moves continuously simultaneously.
Description of drawings
Fig. 1 is the structural representation of the utility model scrubbing tower.
Among the figure: the 1-syngas outlet; 2-flange end socket; 3-condensate liquid inlet; The 4-tower tray; 5-tower tray fixed support; 6-liquid level gauge port; 7-manhole flange; 8-high boiling product outlet; The 9-reboiler; 10-synthesis gas inlet; The 11-condenser.
The specific embodiment
For making those skilled in the art understand the technical solution of the utility model better, the utility model scrubbing tower is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, in the present embodiment, scrubbing tower comprises the tower still, is located at the tower body on the tower still, and condenser 11, having synthesis gas inlet 10 on the described tower still, tower body inside is provided with one or more layers tower tray that can hold the liquid of certain altitude, the tower body top has syngas outlet 1, have condensate liquid inlet 3 on the tower body between described tower tray and the syngas outlet 1, syngas outlet 1 is communicated with the input of condenser 11, and the output of condenser 11 is communicated with condensate liquid inlet 3.
Wherein, 7.6 meters of washing tower heights, the bottom of tower still is cylindrical, and its diameter is 1300mm, and its upper part diameter diminishes gradually, and until being integrated as one with the tower body bottom, tower body is cylindrical, and its diameter is 900mm; Cat head and tower body link together by flange end socket 2.
In the present embodiment, be fixed with 7 layers of tower tray fixed support 5 in the tower body from down to up, tower tray 4 of each layer tower tray fixed support 5 and the common formation of its upper space.Be provided with 7 tower trays 4 in the tower body altogether, make that the space of tower body is enough penetrating, be covered with small and dense hole on the tower tray 4, help circulation; When tower tray 4 was installed, tower tray fixed support 5 was for installing firmware additional, and it extends to the groove of tower tray from the outstanding part of tower wall, and is good with bolting again, to guarantee that this layer tower tray is on same horizontal plane.
The pipeline that extends out from the tower body top is connected to the input of condenser 11, and this tube connector and cat head junction also are provided with syngas outlet 1; The output of condenser 11 is connected to the tower body upper end by pipeline, is communicated with condensate liquid inlet 3, and condenser 11 adopts recirculated water to carry out heat conduction.Wherein, syngas outlet 1 is in the top of flange end socket 2, the condensate liquid inlet 3 of backflow chlorosilane is in the below of flange end socket 2.
Be provided with synthesis gas inlet 10 on tower still top near the position at tower body place, be provided with single tower tray in the tower still, single tower tray is provided with reboiler 9, and the reboiler 9 general steam that adopt heat, with the temperature in the control tower still.On the tower still, also be provided with two liquid level gauge ports 6 that keep at a certain distance away, in described two liquid level gauge ports 6 liquid level gauge can be set respectively, to be used for the height of monitoring tower still fluid-tight.Wherein the position of two liquid level gauge end points 6 is separately positioned on the upper and lower of tower still.Be provided with manhole flange 7 between two liquid level gauge ports 6, the operator can enter the cleaning of overhauling in the tower still with impurity by manhole flange 7.
On the tower still, the below of reboiler 9 is provided with high boiling product outlet 8, is used to discharge high boiling product and silica dust.Wherein, the single tower tray that supports reboiler 9 extends in the groove of single tower tray with installing firmware outstanding part on the tower wall additional in the process of installing, and is good with bolting again, effectively to stop owing to fluid-tight too much destroys the balance of single tower tray.
Appropriate position on tower still and tower body also is respectively arranged with Pressure gauge and thermometer, so as the temperature and pressure of strict control tower still of energy and cat head, the liquid level of assurance chlorosilane scrubbing tower.
Specifically, should make the scrubbing tower equilibrium establishment before use, promptly feed purer chlorosilane product component, for example silicon tetrachloride is as circulatory mediator, regulate its evaporation capacity and capacity of returns with the condensed water of synthesis gas steam and condenser 11 outer circulations simultaneously, form fluid-tight so that it can accumulate certain thickness liquid in the tower still, on tower tray 4, also form the fluid-tight of a thin layer simultaneously, when the forming gas component feeds, just can play cleaning function rapidly.
General main silicon tetrachloride, trichlorosilane, silica dust and the high boiling product etc. of containing in the chlorosilane synthesis gas.When using this scrubbing tower, need the chlorosilane synthesis gas of dedusting to enter the tower still by synthesis gas inlet 10, this moment, the temperature of chlorosilane synthesis gas was approximately 135 ℃, because tower still place, bottom diameter big (diameter 1300mm) and top tower tray place diameter diminish (diameter 900mm), the effect of buffering has been played in bigger space to the chlorosilane synthesis gas, chlorosilane synthesis gas flow velocity is lowered, and the hole that the chlorosilane synthesis gas after the deceleration sees through on the tower tray rises.As previously mentioned, because tower tray has adopted the tower tray fixed support to connect, can guarantee that tower tray on same horizontal plane, leaves the skim fluid-tight on the tower tray.In the present embodiment according to the physico-chemical property of each component in the chlorosilane synthesis gas, tower still temperature is controlled at 80 ℃～90 ℃, the temperature at tower body top is controlled at about 65 ℃, and guarantee that the silicon tetrachloride fluid-tight of staying in the tower still remains on certain altitude (being generally 1000mm), by liquid level gauge monitoring height liquid seal, when bigger variation takes place height liquid seal, regulate reboiler 9 its temperature of heating of tower still bottom, so that guarantee that the height of silicon tetrachloride fluid-tight is a steady state value.A spot of high boiling product and remaining gas are carried out reciprocation cycle with silicon tetrachloride according to the temperature and pressure in the scrubbing tower between scrubbing tower and condenser in the process that high temperature rises.Synthesis gas is recycled medium and fully absorbs behind the thin layer liquid that gathers that passes on the tower tray, reach the purpose that silica dust and high boiling product are effectively separated, and trichlorosilane (being approximately at scrubbing tower pressure under the state of 0.3MPa) boiling point is 31.8 ℃, be lower than tower body head temperature (65 ℃), therefore keep gaseous state, discharge scrubbing tower by syngas outlet 1 with the material that other components are light; And silicon tetrachloride (being approximately at scrubbing tower pressure under the state of 0.3MPa) boiling point is 74.8 ℃, be higher than tower body head temperature (65 ℃), have only fraction still to keep gaseous state, this part silicon tetrachloride enters condenser 11 as the heavy material of circulatory mediator and other components by the pipeline that is connected condenser 11, and gets back in the scrubbing tower by backflow chlorosilane condensate liquid inlet 3.In condenser 11 after the condensation, the silicon tetrachloride of this moment is a liquid condition, and gravitate falls to the tower still, and high boiling product and the silica dust that fully is dissolved in wherein brought to the tower still, and the high-boiling components outlet 8 of impurity such as high boiling product and silica dust at the bottom of by tower in time drained.
In the process of using the described scrubbing tower of present embodiment, control what a liquid level, two temperature and two pressure reduction.A liquid level is the scrubbing tower liquid level, and two temperature are gas feed temperature and tower top temperature, and two pressure reduction is pressure reduction between tower (scrubbing tower inlet pressure and tower top pressure poor) and condenser pressure reduction (cat head and condensator outlet pressure poor).In general, the enter the mouth temperature at 10 places of synthesis gas is high more good more, can prevent that like this impurity from solidifying or liquefy and can not enter scrubbing tower, but can not be too high, in order to avoid the Yin Wendu of system is too high and wayward.The pressure of import simultaneously can not be too little, can guarantee the gas flow rate of synthesis gas like this, so that silica dust can enter scrubbing tower.After forming gas fed scrubbing tower, portion gas can be condensed into liquid and stay the tower still, and the temperature that at this moment can regulate reboiler 9 makes upwards evaporation of liquid, and then regulated condenser 11 and make liquid be back to tower tray, formed a balance.When reaching poised state, can form certain thickness liquid on the tower tray, make between the washing Tata and form certain pressure reduction.Regulate reboiler 9 and condenser 11, make pressure reduction keep constant as far as possible so that keep balance.The principle of regulating is: tower top temperature can not be too high so that make impurity vaporization or distillation can not play cleaning function for gas; Condensation temperature should not be low excessively, uses in the influence of condenser hydrops to prevent product liquid; Note also simultaneously, when regulating the liquid level of scrubbing tower tower tray 4,, fluid-tight is slowly gone up for preventing the too high precipitation that produces of impurity concentration in the tower bottoms with reboiler 9.
Owing to contain high boiling product in the tower bottoms, stop up liquid level gauge easily, so generally adopt the mode of partial reflux liquid flushing liquid level gauge to prevent that liquid level gauge from stopping up.Simultaneously owing to high boiling product is fixed in washing process in the washing Tata still, so the high boiling product content of tower bottoms can raise after use a period of time, so after using certain hour, will replace to the scrubbing tower tower bottoms, prevent that high boiling product from tower still deposition, preventing to stop up follow-up equipment.
The utility model is the improvement that the physico-chemical property at chlorosilane carries out, it utilizes the circulation technology of chlorosilane effectively to remove silica dust and high boiling product component in the chlorosilane, reduce high boiling product and the shared degree of silica dust, reach the purpose of effective dedusting, reduce security risk, improve the quality of products, and lower to the requirement of equipment, reduced energy consumption and equipment cost, tower still space is bigger simultaneously, operating personnel overhaul conveniently, can realize that the long period of scrubbing tower moves continuously.
Be understandable that above embodiment only is the illustrative embodiments that adopts for principle of the present utility model is described, yet the utility model is not limited thereto.For those skilled in the art, under the situation that does not break away from spirit of the present utility model and essence, can make various modification and improvement, these modification and improvement also are considered as protection domain of the present utility model.
Claims (10)
1. scrubbing tower, comprise tower still and the tower body of being located on the tower still, it is characterized in that also including condenser (11), have synthesis gas inlet (10) on the described tower still, tower body inside is provided with one or more layers tower tray that can hold the liquid of certain altitude (4), the tower body top has syngas outlet (1), on the tower body between described tower tray and the syngas outlet (1), have condensate liquid inlet (3), described syngas outlet (1) is communicated with the input of condenser (11), the output of described condenser (11) and described condensate liquid enter the mouth (3) be communicated with.
2. scrubbing tower according to claim 1 is characterized in that being fixed with from down to up in the tower body one or more layers tower tray fixed support (5), and tower tray fixed support (5) forms tower tray (4) jointly with its upper space.
3. scrubbing tower according to claim 1 is characterized in that being provided with in the described tower still reboiler (9) that is used to heat.
4. scrubbing tower according to claim 1, the temperature that it is characterized in that described tower still are 80 ℃～90 ℃, and the temperature at tower body top is about 65 ℃.
5. scrubbing tower according to claim 1 is characterized in that the bottom of described tower still is cylindrical, and its top that combines with tower body is cone shape, and tower body is cylindrical, and the top of tower still and the bottom of tower body are combined as a whole.
6. scrubbing tower according to claim 5 is characterized in that the diameter of tower still bottom is 1300mm, and the diameter of tower body is 900mm, and the liquid height in the described tower still is 1000mm.
7. scrubbing tower according to claim 1 is characterized in that tower still bottom has high boiling product outlet (8).
8. according to the described scrubbing tower of one of claim 1-7, it is characterized in that on the described tower body that be provided with flange end socket (2) between syngas outlet (1) and the condensate liquid inlet (3), tower still middle part is provided with manhole flange (7).
9. according to the described scrubbing tower of one of claim 1-7, it is characterized in that keeping at a certain distance away on the tower still has two liquid level gauge ports (6).
10. according to the described scrubbing tower of one of claim 1-7, it is characterized in that also being provided with Pressure gauge on tower still and the tower body, also be provided with thermometer on tower still and the tower body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120052670XU CN201855644U (en) | 2011-03-02 | 2011-03-02 | Washing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120052670XU CN201855644U (en) | 2011-03-02 | 2011-03-02 | Washing tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201855644U true CN201855644U (en) | 2011-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120052670XU Expired - Fee Related CN201855644U (en) | 2011-03-02 | 2011-03-02 | Washing tower |
Country Status (1)
| Country | Link |
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| CN (1) | CN201855644U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102849745A (en) * | 2012-09-24 | 2013-01-02 | 华陆工程科技有限责任公司 | Dust removal process and system for trichlorosilane production |
| CN109134527A (en) * | 2018-09-07 | 2019-01-04 | 江西蓝星星火有机硅有限公司 | A kind of scrubber system and its application in separation methyl chlorosilane monomer |
| JP2021021553A (en) * | 2019-07-30 | 2021-02-18 | 森松工業株式会社 | Heat utilization unit including cleaning tower |
-
2011
- 2011-03-02 CN CN201120052670XU patent/CN201855644U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102849745A (en) * | 2012-09-24 | 2013-01-02 | 华陆工程科技有限责任公司 | Dust removal process and system for trichlorosilane production |
| CN102849745B (en) * | 2012-09-24 | 2014-08-06 | 华陆工程科技有限责任公司 | Dust removal process and system for trichlorosilane production |
| CN109134527A (en) * | 2018-09-07 | 2019-01-04 | 江西蓝星星火有机硅有限公司 | A kind of scrubber system and its application in separation methyl chlorosilane monomer |
| CN109134527B (en) * | 2018-09-07 | 2020-11-24 | 江西蓝星星火有机硅有限公司 | Washing tower system and application thereof in separation of methyl chlorosilane monomers |
| JP2021021553A (en) * | 2019-07-30 | 2021-02-18 | 森松工業株式会社 | Heat utilization unit including cleaning tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: XINTE ENERGY CO., LTD. Free format text: FORMER NAME: TBEA XINJIANG SILICON INDUSTRY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 830011, room 716, Mustang building, No. 158, Kunming Road, the Xinjiang Uygur Autonomous Region, Urumqi Patentee after: Xinte Energy Co.,Ltd. Address before: 830011, Mustang business club No. 158, Kunming Road, 717, the Xinjiang Uygur Autonomous Region, Urumqi Patentee before: TBEA Xinjiang Silicon Industry Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110608 Termination date: 20190302 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |