The filter of adhesive
Technical field
The utility model relates to the chemical industry equipment field, especially the adhesive filter.
Background technology
Need in oiliness, the aqueous binder production to adopt filter that the molecule that includes is carried out liquid-solid separation, common filter is to add one or more layers filter paper or screen pack (nylon, terylene, wire netting) in the bottom of material-storage jar at present, the adhesive of liquid state process filter paper or filter screen under normal pressure in the material-storage jar; The filtration of fluid binder need be carried out usually at a lower temperature, and the high rate of filtration of material viscosity is slow like this, can obtain the filter effect of better quality.
Above-mentioned filter needs operating personnel with the artificial material-storage jar that quantitatively adds of material, wait for cooling naturally of long period then and slowly filter after feed intake again again, so can only Batch Process, production efficiency is low, labor intensity of operating staff is big.Secondly, intermittently feed intake with the material transfer process in, material-storage jar must open wide, adhesive is exposed in the air, volatility toxic gas is wherein overflowed, and not only eyes, respiratory tract, the human body skin to operating personnel has spread effect, and also the air to production environment produces serious pollution; And the effusion of gas makes the unordered volatilization of adhesive component, causes the material component ratio to change, and influenced the viscosity of organic bond, reduced product quality.
The utility model content
Low, the volatile toxic gas of open filtration operation production efficiency during the applicant produces at above-mentioned existing adhesive, serious environment pollution and easily cause shortcomings such as personal safety accident and quality problems, provide a kind of rational in infrastructure, the filter efficiency height, can reclaim the filter of the adhesive of volatility toxic gas, thus can environmental protection, safety, carry out the filtration operation of adhesive efficiently.
The technical scheme that the utility model adopted is as follows:
The filter of adhesive comprises the adhesive reaction still, adhesive condenser, filter and the material-storage jar that are linked in sequence by pipeline, is connected with flow control valve on the described pipeline, and described material-storage jar top connects negative pressure line.It is further characterized in that:
Described negative pressure line is constructed as follows: material-storage jar top is by pipeline order be tightly connected gas condenser, gas buffer jar, GAS ABSORPTION jar and vavuum pump.
Described GAS ABSORPTION jar water is as absorbing medium.
Described filter is made of the upper casing and the lower casing that connect, and described upper casing top is provided with charging aperture, and the lower casing bottom is provided with discharging opening, and described lower casing opening part has been horizontally disposed with the filter screen supporting plate, and filter screen is covered on filter screen supporting plate upper berth.
Described filter screen supporting plate is for having certain thickness sheet material, and described plate surface offers the groove of handing-over, and the junction of groove has the through hole that runs through sheet metal thickness.
Described filter screen supporting plate is a stainless steel.
The beneficial effects of the utility model are as follows:
Structural design of the present utility model is simple, science, economy, front end at filter is provided with the adhesive condenser on the one hand, flow by the control cooling water is controlled the cooling effect of condenser, and adhesive has suitable temperature and viscosity before guaranteeing to filter, to carry out high-quality filtration; Second aspect makes adhesive finish filtration again under negative pressure state, so that guarantee to have the suitable rate of filtration and production efficiency; The third aspect also utilizes same negative pressure line to reclaim the organic gas that volatilizes in the filter process, refluxes after the condensation, and the unordered volatilization of stopping material component is run off, and has guaranteed the quality of adhesive final products; Minute quantity organic gas to be recycled is by the backflow of condenser in the described negative pressure line, the cooling precipitation of gas buffer jar and the absorption of GAS ABSORPTION jar, the zero-emission of toxic and harmful in can realizing substantially producing, effectively reduce environmental pollution, avoid being provided with powerful workshop exhaust system and gas active carbon absorption plant, save production cost on the whole, ensured operating personnel's personal safety.
In addition, structure of filter of the present utility model is reasonable in design, and the filter screen supporting plate offers vertical-horizontal slot, has the through hole that runs through described sheet metal thickness in the junction of vertical-horizontal slot, guarantees the circulation of filtered fluid, can ensure carrying out smoothly of filter process.
The utility model can be realized working continuously, and easy to operate, control method is flexible.By the vacuum of control system, the open and-shut mode of control flow valve carries out the control of the flow of adhesive on the one hand; Simultaneously, regulate the flow of inlet water and the temperature of adhesive condenser, also can control the viscosity of adhesive, reach desirable filter effect, improve the quality of product.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the front view of filter of the present utility model, broken section.
Fig. 3 is the stereogram of the filter screen supporting plate in the filter, broken section.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described.
As shown in Figure 1, the utility model comprises adhesive reaction still 1, adhesive condenser 2, the filter 3 and material-storage jar 4 that is linked in sequence, and each parts connects by the adhesive flow pipeline, and pipeline is provided with flow control valve 9; Material-storage jar 4 tops are by vacuum-pumping pipeline be linked in sequence gas condenser 5, gas buffer jar 6, GAS ABSORPTION jar 7 and water ring vacuum pump 8, and package unit inside is airtight, makes filter 3 form the negative pressure filtration states after vacuumizing.
Adhesive reaction still 1 is provided with agitating device 101, in order to full and uniform stir mixing; Reactor 1 top is provided with the condenser towards atmosphere, atmospheric valve 102 and material input channel 103, outlet at bottom connects the input port of adhesive condenser 2 by connecting pipe and flow control valve 9, adhesive condenser 2 is by the upper end that has confined space respectively, side wall portion and bottom constitute, communicate by serial pipeline between described upper end and the bottom, the cooling fluid of condenser 2 enters from the water inlet of side wall portion bottom, flow out from the delivery port 202 on side wall portion top, discharge by control water inlet control valve 201, control the cooling effect of adhesive condenser 2, guarantee to export the adhesive of suitable temperature to filter.As shown in Figure 2, filter 3 of the present utility model is dish-shaped upper casing 301 with after dish-shaped lower casing 302 make-ups are connected, and adopts pad or packing ring to seal between upper casing and lower casing flange, utilizes securing member 307 such as bolt to lock on the edge flange; Be provided with thermometer 310 and charging aperture 303 at upper casing 301 tops, be provided with discharging opening 304 in lower casing 302 bottoms, be provided with the filter screen supporting plate 306 of horizontal positioned at the opening part of lower casing 302, be covered with the filter paper of specifying specification or the filter screen 305 of corresponding mesh number on filter screen supporting plate 306 upper berths.As shown in Figure 3, filter screen supporting plate 306 is for having certain thickness metal stainless steel materials, and the front offers the square vertical-horizontal slot 308 of quadrature, is provided with the through hole 309 that runs through described sheet metal thickness in the junction of vertical-horizontal slot 308, is used to the filtered fluid that circulates.
As shown in Figure 1, be connected with thermometer, vacuum meter 401, exhaust-valve 403 and vacuum lead 402 on the top cover of material-storage jar 4, material-storage jar 4 bottoms connect discharge pipe 404.Gas condenser 5 is identical with aforementioned adhesion agent condenser 2 structures, is arranged at material-storage jar 4 tops, exports from bottom inflow and from the top; Gas condenser 5 bottoms are provided with into water controlling valve 501, and top sets out the mouth of a river 502, thereby reach the condensation effect that needs by the temperature and the flow of control cooling fluid.The top of gas buffer jar 6 is provided with vacuum meter 601 and atmospheric valve 602, and the bottom is provided with Drainage pipe 603.The GAS ABSORPTION jar 7 inner water that keep certain water level are used to absorb residual organic gas, and described organic gas is mainly alcohol, ester, ethers gas.By the liquid elevating valve 702 control water surface elevations at tank body middle part, air inlet pipe is inserted below the water surface, and tank base is provided with blow-off line 701; The top of GAS ABSORPTION jar 7 connects water ring vacuum pump 8 by gas flow valve.Described condenser, liquid elevating valve and water ring vacuum pump 8 adopt the commercial goods.
The course of work of the present utility model is as follows:
After at first will making the material electronics metering of adhesive, drop in the reactor 1 by material input channel 103 automatic chargings, mix and fully reaction, this moment, control valve 9 was a closed condition; Open water ring vacuum pump 8 and vacuumize, reach the forevacuum degree after, open the flow control valve 9 of adhesive flow pipeline, whole filter comes into operation; Adhesive is lowered the temperature by adhesive condenser 2, and the adhesive temperature can be removed organic impurities and a small amount of polymer agglomeration thing in the adhesive after reducing effectively, reaches desirable filter effect; Generally, temperature is about 100 ℃, by being cooled to about 35 ℃ behind the adhesive condenser 2 behind the material reaction in the adhesive reaction still 1.See Fig. 2, Fig. 3, adhesive after the cooling enters from the upper casing 301 its top feed mouths 303 of filter 3, be dispersed to filter screen 305 surfaces, under the acting in conjunction of adhesive gravity and pull of vacuum, the solid impurity that particle is bigger is retained in above the filter screen 305, and flow into the vertical-horizontal slot 308 of filter screen supporting plate 306 by the fluid binder of filter screen 305 meshes, and pass through the dish-like lower casing 302 of through hole 309 inflows of junction, flow out to material-storage jar 4 by bottom discharge mouth 304 then.The groove 308 of filter screen supporting plate 306 is crisscross, has not only enlarged the effective filtration area of filter screen, and if after local through hole 309 blocked, adhesive still can flow into other through holes, guarantee normally carrying out of filtration operation.After a period of time use, can suspend the operation of complete equipment, loosening fasteners 307 is changed filter screen 305 easily.
See Fig. 1, the organic gas that in material-storage jar 4, volatilizes, enter gas condenser 5 by vacuum lead 402, its temperature is generally about 35 ℃, after supercooling, most organic gas is condensed into liquid state, tube wall along vacuum lead 402 is back in the adhesive material-storage jar 4 under the effect of gravity, have only remaining organic gas seldom to enter gas buffer jar 6 and cool off the formation liquid storage once more, the remaining organic gas of remaining minute quantity is drawn into GAS ABSORPTION jar 7, after water filtration absorbs, be dissolved in the water, do not contain the poisonous and harmful organic gas substantially in the gas that water ring vacuum pump 8 is discharged like this, realized the zero-emission of dusty gas substantially.After the work regular period, the liquid of gas buffer jar 6 carries out emptying by Drainage pipe 603; The liquid of GAS ABSORPTION jar 7 inside also discharges and changes by blow-off line 701.
More than describing is to explanation of the present utility model, it or not qualification to utility model, the utility model institute restricted portion is referring to claim, under the situation of the utility model spirit, the utility model can be done any type of modification, for example changes a little the utility model is applied in the production process of other chemical products.