CN208182887U - A kind of Ergol low-boiling-point substance continuous production benzoic acid system - Google Patents
A kind of Ergol low-boiling-point substance continuous production benzoic acid system Download PDFInfo
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- CN208182887U CN208182887U CN201820404415.9U CN201820404415U CN208182887U CN 208182887 U CN208182887 U CN 208182887U CN 201820404415 U CN201820404415 U CN 201820404415U CN 208182887 U CN208182887 U CN 208182887U
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- benzoic acid
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- crystallization kettle
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Abstract
A kind of Ergol low-boiling-point substance continuous production benzoic acid system, including heat exchanger apparatus, crystallization kettle, centrifuge, mother liquor tank, benzoic acid slot, the crystallization kettle top are equipped with feeding inlet, and the feeding inlet is connect by feeding pipe with heat exchanger apparatus；It is equipped with omnidirectional's blender in the crystallization kettle, is additionally provided with overflow port at the top of crystallization kettle, the overflow port is connect with overflow pipe；The crystallization kettle side is equipped with cooling jacket, the crystallization kettle bottom is equipped with discharge port, the discharge port is connect with discharge nozzle, it is connect after the discharge nozzle is in parallel with overflow pipe with centrifuge top entry, the centrifugation motor spindle is equipped with leakage fluid dram and discharge gate, the leakage fluid dram is connect by drain pipe with mother liquor tank top entry, and the discharge gate is connect by drainage conduit with benzoic acid slot top entry；The utility model can be continuously by the Ergol low boiling freezing and crystallizing containing benzoic acid, and is centrifugated, and obtains the benzoic acid of high level, improves production efficiency.
Description
Technical field
The utility model relates to benzoic acid production technical field, especially a kind of Ergol low-boiling-point substance continuous production benzene
Formic acid system.
Background technique
Benzoic acid is flakey or acicular crystal with benzene or formaldehyde odor, its steam has very strong irritation, is inhaled
Easily causing to cough after entering, be slightly soluble in water, is soluble in the organic solvents such as ethyl alcohol, ether, benzoic acid is weak acid, it is stronger than fatty acid, it
Chemical property it is similar, can forming salt, ester, carboxylic acid halides, amide, acid anhydrides etc., be all not easy to be oxidized, can be sent out on the phenyl ring of benzoic acid
Raw electrophilic substitution reaction, mainly obtains meta position substituent.
Benzoic acid is widely used in industrial chemical, and using at present is widely toluene oxidation benzoic acid, it is contemplated that
The factors such as the prices of raw materials, safety, three-protection design, and influence to environment utilize Ergol low boiling to produce benzoic acid
Method have bigger advantage, but mentioned one in crystallization kettle currently used in the market such as patent CN206152387U
Disadvantage: when being stained with benzoic acid on the inner wall of crystallization kettle, heat transfer efficiency is deteriorated, and the freezing and crystallizing time is elongated, influences production efficiency.
And since crystallization kettle is taper configurations, it is difficult to be made into pressure vessel, and then steam is passed through in collet, reaches and melt on kettle wall
Benzoic acid purpose.
Summary of the invention
The purpose of this utility model is to provide a kind of Ergol low-boiling-point substance continuous production benzoic acid systems, to solve
The problems mentioned above in the background art.
The technical solution adopted in the utility model is: a kind of Ergol low-boiling-point substance continuous production benzoic acid system, packet
Heat exchanger apparatus, crystallization kettle, centrifuge, mother liquor tank, benzoic acid slot are included, is equipped with feeding inlet, the pan feeding at the top of the crystallization kettle
Mouth is connect by feeding pipe with heat exchanger apparatus；It is equipped with omnidirectional's blender in the crystallization kettle, is additionally provided with overflow at the top of crystallization kettle
Mouthful, the overflow port is connect with overflow pipe；The crystallization kettle side is equipped with cooling jacket, and the crystallization kettle bottom is equipped with discharging
Mouthful, the discharge port connect with discharge nozzle, and the discharge nozzle is connect with after overflow pipe parallel connection with centrifuge top entry, it is described from
Scheming bottom is equipped with leakage fluid dram and discharge gate, and the leakage fluid dram is connect by drain pipe with mother liquor tank top entry, the discharge
Mouth is connect by drainage conduit with benzoic acid slot top entry.
Preferably, the heat exchanger apparatus includes the heat exchanger being connected in parallel and spare heat exchanger, the heat exchanger
It is equipped with feed inlet at the top of spare heat exchanger, the feed inlet is connect with feed pipe, and the heat exchanger and spare heat exchanger are equal
Bottom is equipped with discharge gate, and the discharge gate connect with feeding pipe, the heat exchanger and spare exchanger base be additionally provided with refrigerant into
Mouthful, institute's refrigerant inlet is connect with refrigerant inlet pipe, and refrigerant exit is additionally provided at the top of the heat exchanger, and the refrigerant exit and refrigerant are arranged
Pipe connection.
Preferably, the heat exchanger and feed pipe, feeding pipe, refrigerant inlet pipe, refrigerant comb in spare heat exchanger are equal
It is arranged in parallel.
Preferably, the crystallization kettle is taper mixed crystallization kettle.
Preferably, the centrifuge is horizontal spiral centrifuge.
Preferably, being equipped with refrigerant inlet at the top of the cooling jacket, the refrigerant inlet is connect with into refrigerant pipe, described
Cooling jacket bottom is equipped with coolant outlet port, and the coolant outlet port connect with refrigerant pipe out, is passed through in the cooling jacket
Refrigerant temperature is -10 DEG C~10 DEG C.
Preferably, the Ergol low boiling material is heated to 89~92 DEG C, guarantee its mobility, then through pumping
Enter 1 device of heat exchanger, be cooled to 29~31 DEG C or so, the temperature of charge for entering crystallization kettle is down to below freezing, material inflow
Freezing and crystallizing in crystallization kettle, the major function of crystallization kettle are that Benzoic Acid Crystal is allowed slowly to grow to certain state, benzene in crystallization kettle
The a small amount of heat discharged in formic acid crystallization process is slowly taken away by refrigerant in crystallization kettle collet；
Material is flowed into centrifuge from discharge nozzle and is centrifugated in crystallization kettle, and upper layer crystallized stock is flowed into from overflow pipe and is centrifuged
Centrifuge separation in machine, mother liquor flow into mother liquor tank, and benzoic acid solid falls into benzoic acid slot, and solid benzoic acid becomes liquid after being heated
Benzoic acid is delivered to packing shop with pump.
Preferably, heat transfer effect is deteriorated when being stained with more benzoic acid on the tubulation of the heat exchanger, it is not achieved
Heat transfer requirements are switched to spare heat exchanger and use.Heat exchanger refrigerant disengaging valve is closed, steam is passed through to the shell of heat exchanger
Journey melts the benzoic acid solid adhered on tubulation for liquid, inflow crystallization kettle；After melting benzoic acid, steam off valve,
It opens heat exchanger refrigerant and passes in and out valve, when spare heat exchanger heat transfer effect is bad, switching is used.
The utility model structure is simple, reduces labor intensity；It can be continuously low by the Ergol containing benzoic acid
Freezing and crystallizing is boiled, and is centrifugated, the benzoic acid of high level is obtained, the use for the person of being convenient to use improves production effect
Rate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
A kind of Ergol low-boiling-point substance continuous production benzoic acid system, including heat exchanger, crystallization kettle 3, centrifuge 5, mother
Liquid bath 6, benzoic acid slot 7, crystallization kettle 3 are taper mixed crystallization kettle, and omnidirectional's blender, crystallization kettle top are equipped in the crystallization kettle
Equipped with feeding inlet 331, the feeding inlet 331 is connect by feeding pipe 21 with heat exchanger apparatus, and heat exchanger apparatus includes being connected in parallel on
Heat exchanger 1 and spare heat exchanger 2 together are equipped with feed inlet 24, the feed inlet 24 and feed pipe 25 at the top of the heat exchanger 1
Connection, the exchanger base are equipped with discharge gate 26, and the discharge gate 26 is connect with feeding pipe 21, and 1 bottom of heat exchanger is also
Equipped with refrigerant inlet 28, institute's refrigerant inlet 28 is connect with refrigerant inlet pipe 23, and the heat exchanger top is additionally provided with refrigerant exit 27,
The refrigerant exit 27 is connect with refrigerant comb 22；The spare heat exchanger 2 is similarly arranged；In heat exchanger and spare heat exchanger
Feed pipe, discharge nozzle, refrigerant inlet pipe, refrigerant comb are arranged in parallel.Overflow port 316 is additionally provided at the top of the crystallization kettle 3, it is described
Overflow port 316 is connect with overflow pipe 51；The crystallization kettle side is equipped with cooling jacket 38, and the cooling jacket bottom is equipped with cold
Matchmaker's entrance 331, the refrigerant inlet 331 are connect with into refrigerant pipe 36, and coolant outlet port 333 is equipped at the top of the cooling jacket,
The coolant outlet port 333 is connect with refrigerant pipe 35 out, and the refrigerant temperature being passed through in the cooling jacket is -10 DEG C~10 DEG C.
The crystallization kettle bottom is equipped with discharge port 37, and the discharge port 37 connect with discharge nozzle 52, the discharge nozzle 52 and
It is connect after 51 parallel connection of overflow pipe with 5 top entry of centrifuge, centrifuge is horizontal spiral centrifuge, and the centrifugation motor spindle is equipped with
Leakage fluid dram 56 and discharge gate 57, the leakage fluid dram 56 are connect by drain pipe 53 with mother liquor tank top entry 61, the discharge gate
57 are connect by drainage conduit 55 with benzoic acid slot top entry 71.
Its working principle: the Ergol low boiling material containing benzoic acid is heated to 89~92 DEG C, guarantees its stream
Dynamic property, is then pumped into 1 device of heat exchanger, is cooled to 29~31 DEG C or so, and the temperature of charge for entering crystallization kettle is down to ice
For point hereinafter, material flows into freezing and crystallizing in crystallization kettle 3, the major function of crystallization kettle is that Benzoic Acid Crystal is allowed slowly to grow to centainly
State, a small amount of heat discharged in crystallization kettle in benzoic acid crystallization process, is slowly taken away by refrigerant in crystallization kettle collet.
In crystallization kettle material from discharge nozzle flow into centrifuge 5 in be centrifugated, upper layer crystallized stock from overflow pipe flow into from
Centrifuge separation in scheming 5, mother liquor flow into mother liquor tank 6, and benzoic acid solid falls into benzoic acid slot 7, and solid benzoic acid becomes after being heated
At liquid benzoic acid, packing shop is delivered to pump.
When being stained with more benzoic acid on the tubulation of heat exchanger 1, heat transfer effect is deteriorated, and heat transfer requirements are not achieved,
Spare heat exchanger 2 is switched to use.1 refrigerant of heat exchanger disengaging valve is closed, steam is passed through to the shell side of heat exchanger, by tubulation
It is liquid that the benzoic acid solid of upper adherency, which melts, flows into crystallization kettle.After melting benzoic acid, steam off valve opens heat exchange
1 refrigerant of device passes in and out valve, and when spare 2 heat transfer effect of heat exchanger is bad, switching is used.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (8)
1. a kind of Ergol low-boiling-point substance continuous production benzoic acid system, including heat exchanger apparatus, crystallization kettle, centrifuge, mother
Liquid bath, benzoic acid slot, it is characterised in that feeding inlet is equipped at the top of the crystallization kettle, the feeding inlet passes through feeding pipe and heat exchanger
Device connection；It is equipped with omnidirectional's blender in the crystallization kettle, is additionally provided with overflow port, the overflow port and overflow pipe at the top of crystallization kettle
Connection；The crystallization kettle side is equipped with cooling jacket, and the crystallization kettle bottom is equipped with discharge port, the discharge port and discharge nozzle
Connection connect after the discharge nozzle and overflow pipe are in parallel with centrifuge top entry, the centrifugation motor spindle equipped with leakage fluid dram with
Discharge gate, the leakage fluid dram are connect by drain pipe with mother liquor tank top entry, and the discharge gate passes through drainage conduit and benzoic acid
The connection of slot top entry.
2. a kind of Ergol low-boiling-point substance continuous production benzoic acid system according to claim 1, it is characterised in that institute
Stating heat exchanger apparatus includes the heat exchanger being connected in parallel and spare heat exchanger, is all provided at the top of the heat exchanger and spare heat exchanger
There is feed inlet, the feed inlet is connect with feed pipe, and the heat exchanger and the equal bottom of spare heat exchanger are equipped with discharge gate, the row
Material mouth is connect with feeding pipe, the heat exchanger and spare exchanger base be additionally provided with refrigerant inlet, institute's refrigerant inlet and refrigerant into
Pipe connection, the heat exchanger top are additionally provided with refrigerant exit, and the refrigerant exit is connect with refrigerant comb.
3. a kind of Ergol low-boiling-point substance continuous production benzoic acid system according to claim 2, it is characterised in that institute
It states heat exchanger and feed pipe, feeding pipe, refrigerant inlet pipe, refrigerant comb in spare heat exchanger is arranged in parallel.
4. a kind of Ergol low-boiling-point substance continuous production benzoic acid system according to claim 1, it is characterised in that institute
Stating crystallization kettle is taper mixed crystallization kettle.
5. a kind of Ergol low-boiling-point substance continuous production benzoic acid system according to claim 1, it is characterised in that institute
Stating centrifuge is horizontal spiral centrifuge.
6. a kind of Ergol low-boiling-point substance continuous production benzoic acid system according to claim 1, it is characterised in that institute
It states and is equipped with refrigerant inlet at the top of cooling jacket, the refrigerant inlet is connect with into refrigerant pipe, and the cooling jacket bottom is equipped with cold
Matchmaker's outlet, the coolant outlet port are connect with refrigerant pipe out, and the refrigerant temperature being passed through in the cooling jacket is -10 DEG C~10
℃。
7. a kind of Ergol low-boiling-point substance continuous production benzoic acid system according to claim 1, it is characterised in that institute
It states Ergol low boiling material and is heated to 89~92 DEG C, guarantee its mobility, be then pumped into heat exchanger (1) device, drop
The temperature of charge for entering crystallization kettle is down to below freezing, freezing and crystallizing in material inflow crystallization kettle to 29~31 DEG C or so by temperature,
The major function of crystallization kettle is that Benzoic Acid Crystal is allowed slowly to grow to certain state, is discharged in benzoic acid crystallization process in crystallization kettle
A small amount of heat, slowly taken away by refrigerant in crystallization kettle collet；
Material is flowed into centrifuge from discharge nozzle and is centrifugated in crystallization kettle, and upper layer crystallized stock flows into centrifuge from overflow pipe
Centrifuge separation, mother liquor flow into mother liquor tank, and benzoic acid solid falls into benzoic acid slot, and solid benzoic acid becomes liquid benzene first after being heated
Acid is delivered to packing shop with pump.
8. a kind of Ergol low-boiling-point substance continuous production benzoic acid system according to claim 2 or 3, it is characterised in that
When being stained with more benzoic acid on the tubulation of the heat exchanger, heat transfer effect is deteriorated, and heat transfer requirements are not achieved, are switched to standby
It is used with heat exchanger；Heat exchanger refrigerant disengaging valve is closed, steam is passed through to the shell side of heat exchanger, the benzene that will be adhered on tubulation
It is liquid that formic acid solid, which melts, flows into crystallization kettle, and after melting benzoic acid, steam off valve opens the disengaging of heat exchanger refrigerant
Valve, when spare heat exchanger heat transfer effect is bad, switching is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820404415.9U CN208182887U (en) | 2018-03-24 | 2018-03-24 | A kind of Ergol low-boiling-point substance continuous production benzoic acid system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820404415.9U CN208182887U (en) | 2018-03-24 | 2018-03-24 | A kind of Ergol low-boiling-point substance continuous production benzoic acid system |
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| Publication Number | Publication Date |
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| CN208182887U true CN208182887U (en) | 2018-12-04 |
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| CN201820404415.9U Active CN208182887U (en) | 2018-03-24 | 2018-03-24 | A kind of Ergol low-boiling-point substance continuous production benzoic acid system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113087241A (en) * | 2021-04-02 | 2021-07-09 | 大连广泰源环保科技有限公司 | Sour slurry treatment process and equipment suitable for landfill leachate |
-
2018
- 2018-03-24 CN CN201820404415.9U patent/CN208182887U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113087241A (en) * | 2021-04-02 | 2021-07-09 | 大连广泰源环保科技有限公司 | Sour slurry treatment process and equipment suitable for landfill leachate |
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