CN103925977A - Polyamide-6 granula modifying agent weighing system and weighing method - Google Patents

Abstract

The invention discloses a polyamide-6 granula modifying agent weighing system which comprises a modifying agent tank, a weighing tank, an electronic scale and a vacuumizing device. An air inlet is formed in the modifying agent tank. The vacuumizing device comprises a vacuum pump, an upper tank body and a water tank connected with the lower portion of the upper tank body. A spraying device is arranged at the upper portion in the upper tank body, a sponge block is arranged between the spraying device and a pumping out pipe, and the inlet position of the pumping out pipe is arranged above a horn-shaped hole. The invention further discloses a polyamide-6 granula modifying agent weighing method. The polyamide-6 granula modifying agent weighing system and weighing method have the advantages that when the vacuumizing device is in work, the weighing tank is pumped into negative pressure; when the vacuum pump in the vacuumizing device is in work, the upper tank body is pumped into negative pressure; modifying agent gas can be cleaned in the vacuumizing device; most modifying agents can be absorbed and dissolved in water. Thus, the effect on the vacuum pump is effectively reduced, and the service life of the vacuum pump is guaranteed. In addition, the discharge amount of the modifying agents is reduced, the environmental friendliness is achieved, and the pollution is avoided.

Description

A kind of Weighing system of chinlon 6 section modifier and weighing technique

Technical field

The present invention relates to a kind of equipment and production stage of chinlon 6 section, especially a kind of Weighing system of chinlon 6 section modifier and weighing technique.

Background technology

Chinlon 6 section is the primary raw material of producing nylon-6 fiber, and in the production run of chinlon 6 section, modifier uses as modifier, and this just need to weigh to modifier in process of production.The modifier weighing-appliance of existing chinlon 6 section production use comprises modifier head tank, gravimetric tank and vacuum pump, modifier head tank is connected with gravimetric tank by pipeline, gravimetric tank is connected with vacuum pump by pipeline, while weighing, vacuum pump work makes to produce negative pressure in gravimetric tank, and the modifier in modifier head tank is just drawn in gravimetric tank and realizes and weighing like this.Because modifier exists volatile feature, the modifier gas existing in modifier head tank is finally discharged from vacuum pump, therefore there are following two technical matterss in this modifier weighing-appliance: 1, modifier gas has corrosivity, after entering vacuum pump, can cause vacuum pump pad aging, affect the serviceable life of vacuum pump; 2, modifier gas is finally discharged from vacuum pump, easily contaminated environment.Similar other modifier are also being deposited above-mentioned technical matters.

Owing to there is above-mentioned technical matters, be therefore necessary existing modifier weighing-appliance to improve.

Summary of the invention

A kind of Weighing system and the weighing technique of guaranteeing service life of vacuum pump, preventing a kind of chinlon 6 section modifier of contaminated environment that the object of the invention is the deficiency in order to solve above-mentioned technology and design.

The Weighing system of the designed chinlon 6 section modifier of the present invention, comprise modifier tank, weighing pot, electronic scales and vacuum extractor, described modifier tank is provided with air intake opening, described air intake opening is provided with vacuum pressure valve or cooling gas check valve, described weighing pot is positioned at electronic scales top and is connected with a liquid suction pipe that is inserted into modifier pot bottom, it is characterized in that described vacuum extractor comprises vacuum pump, upper box and the water tank that is connected to upper box bottom, described vacuum pump is positioned at upper box top, described upper box one side is provided with tail pipe, opposite side is provided with extracts pipe out, the region of described upper box internal upper part is provided with spray equipment, spray equipment is near tail pipe one side, described water tank is connected with described spray equipment by water pipe, on water pipe, be provided with water pump, between described spray equipment and extraction pipe, be provided with sponge block, described sponge block is limited between upper box roof and water tank bottom surface, and is provided with two openings in the center of sponge block to extracting the diminishing flared hole of pipe direction out, the entrance of described extraction pipe is positioned at described flared hole top, and described extraction pipe connects described vacuum pump, below extraction pipe, is also provided with a water pot, described weighing pot is connected with described tail pipe.

The weighing technique of the designed chinlon 6 section modifier of the present invention, the method adopts above-mentioned Weighing system, it is characterized in that: the gas that contains modifier is through being cleaned in vacuum extractor vacuum extractor in operational process, and most modifier is absorbed and dissolves by water.

Weighing system and the weighing technique of the designed chinlon 6 section modifier of the present invention, its beneficial effect is: vacuum extractor communicates with gravimetric tank, therefore when vacuum extractor is worked, gravimetric tank is pumped into negative pressure, the gas modifier that volatilization in modifier tank forms so is just pulled into gravimetric tank and weighs, when vacuum pump in vacuum extractor is worked, upper box is pumped into negative pressure, gas in gravimetric tank enters in upper box by tail pipe, in gravimetric tank, form negative pressure and can take out modifier to weigh to modifier tank, upper box is connected to water tank upper, and water tank is connected with described spray equipment by water pipe, gas has passed through upper box and water tank in operational process, the region of upper box internal upper part is provided with spray equipment, spray equipment is near tail pipe one side, spray equipment ejection water forms spray band together, modifier in gas is easily absorbed by spray band through spray band after entering upper box by tail pipe, between upper box roof and water tank bottom surface, be also interval with sponge block simultaneously, it is very moist that sponge block is immersed in water tank, the modifier not absorbed by shower water can be dissolved in the contained water of sponge block, can effectively reduce like this content of modifier in gas, sponge block can prevent that shower water from being extracted out by vacuum pump in addition.Can effectively reduce like this content of modifier in gas.Compared with prior art; the gas that contains modifier passes through in vacuum extractor vacuum extractor and is cleaned in operational process; overwhelming majority modifier is absorbed and dissolves by water; so just can effectively reduce the impact on vacuum pump; guarantee its serviceable life; can reduce in addition modifier discharge capacity, effectively protection of the environment, prevents from polluting.

Brief description of the drawings

Fig. 1 is the structural representation of embodiment 1;

Fig. 2 is embodiment 1 vacuum extractor structural representation;

In figure: vacuum pump 1, upper box 2, water tank 3, tail pipe 4, extraction pipe 5, spray equipment 6, water pipe 7, water pump 8, sponge block 9, flared hole 10, water pot 11, modifier tank 13, weighing pot 14, electronic scales 15, vacuum extractor 16, air intake opening 17, vacuum pressure valve 18, liquid suction pipe 19.

Embodiment

Below by embodiment, the invention will be further described by reference to the accompanying drawings.

Embodiment 1:

As shown in Figure 1, the Weighing system of the described chinlon 6 section modifier of the present embodiment, comprise modifier tank 13, weighing pot 14, electronic scales 15 and vacuum extractor 16, described modifier tank 13 is provided with air intake opening 17, described air intake opening 17 is provided with vacuum pressure valve 18, described weighing pot 14 is positioned at electronic scales 15 tops and is connected with a liquid suction pipe 19 that is inserted into modifier tank 13 bottoms, described vacuum extractor 16 comprises vacuum pump 1, upper box 2 and the water tank 3 that is connected to upper box 2 bottoms, described vacuum pump 1 is positioned at upper box 2 tops, described upper box 2 one sides are provided with tail pipe 4, opposite side is provided with extracts pipe 5 out, the region of described upper box 2 internal upper parts is provided with spray equipment 6, spray equipment 6 is near tail pipe 4 one sides, described water tank 3 is connected with described spray equipment 6 by water pipe 7, on water pipe 7, be provided with water pump 8, between described spray equipment 6 and extraction pipe 5, be provided with sponge block 9, described sponge block 9 is limited between upper box 2 roofs and water tank 3 bottom surfaces, and is provided with two openings in the center of sponge block 9 to extracting the diminishing flared hole 10 of pipe 5 direction out, the entrance of described extraction pipe 5 is positioned at described flared hole 10 tops, and described extraction pipe 5 connects described vacuum pump 1, below extraction pipe 5, is also provided with a water pot 11, described weighing pot 14 is connected with described tail pipe 4.

The Weighing system of the described chinlon 6 section modifier of the present embodiment, vacuum extractor 16 communicates with gravimetric tank 14, therefore when vacuum extractor 16 is worked, gravimetric tank 14 is pumped into negative pressure, gas modifier in modifier tank 13 is just pulled into gravimetric tank 14 and weighs like this, air intake opening 17 is provided with vacuum pressure valve 18, control vacuum pressure valve 18 and can make gas modifier more easily be drawn in gravimetric tank 14, gravimetric tank 14 belows are provided with electronic scales 15, can play the effect of weighing.When vacuum pump 1 in vacuum extractor 16 is worked, upper box 2 is pumped into negative pressure, the gas in gravimetric tank 14 enters in upper box 2 by tail pipe 4, and upper box 2 is connected to water tank 3 tops, and water tank 3 is connected with described spray equipment 6 by water pipe 7; When spraying water, spray equipment 6 forms spray band together, in the process that the gas flowing into from gravimetric tank 14 is flowed into upper box 2 by tail pipe 4, modifier in gas is easily absorbed by spray band through spray band, between upper box 2 roofs and water tank 3 bottom surfaces, go back interval sponge block 9 simultaneously, it is very moist that sponge block 9 is immersed in water tank 3, moist sponge block 9 can improve the effect that absorbs modifier greatly, can effectively reduce like this content of modifier in gas.The gas that contains modifier is cleaned in vacuum extractor 16, and most modifier is absorbed and dissolves by water, so just can effectively reduce the impact of modifier on vacuum pump; guarantee its serviceable life; can reduce in addition modifier discharge capacity, effectively protection of the environment, prevents from polluting.

It should be noted that: the water circulation in water tank 3 is used, and also can absorb increasing modifier, can regularly replace the water in water tank for improving assimilation effect; Sponge block 9 is provided with an opening to extracting the diminishing flared hole 10 of pipe 5 direction out, ensure like this modifier as much as possible being absorbed in the time seeing through flared hole 10, sponge block 9 can also avoid vacuum pump 1 that the steam in water tank 3 is extracted out, and a small amount of steam that water pump is extracted out can store in water pot 11.Wherein said vacuum pressure valve 18 can be also cooling gas check valve, and its effect is can prevent that modifier tank from being taken out flat from outside air amount in the time that modifier tank internal liquid is pumped.

In the present embodiment, the modifier (as benzylamine) that modifier uses for gas and for chemical fibre industry, and modifier soluble in water in, therefore to absorb and dissolve waste gas be the effective means of removing the gas modifier containing in waste gas to water.Water-soluble harmful gas of other industry also can adopt this device to absorb dissolving.

The weighing technique of the designed chinlon 6 section modifier of the present embodiment, the method adopts above-mentioned Weighing system, it is characterized in that: the gas that contains modifier is through being cleaned in vacuum extractor vacuum extractor in operational process, and most modifier is absorbed and dissolves by water.

Specific embodiment described herein is only to design of the present invention explanation for example.Those skilled in the art can make various amendments or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.

Claims (2)

1. the Weighing system of a chinlon 6 section modifier, comprise modifier tank (13), weighing pot (14), electronic scales (15) and vacuum extractor (16), described modifier tank (13) is provided with air intake opening (17), described air intake opening (17) is provided with vacuum pressure valve (18) or cooling gas check valve, described weighing pot (14) is positioned at electronic scales (15) top and is connected with a liquid suction pipe (19) that is inserted into modifier tank (13) bottom, it is characterized in that described vacuum extractor (16) comprises vacuum pump (1), upper box (2) and be connected to the water tank (3) of upper box (2) bottom, described vacuum pump (1) is positioned at upper box (2) top, described upper box (2) one sides are provided with tail pipe (4), opposite side is provided with extracts pipe (5) out, the region of described upper box (2) internal upper part is provided with spray equipment (6), spray equipment (6) is near tail pipe (4) one sides, described water tank (3) is connected with described spray equipment (6) by water pipe (7), on water pipe (7), be provided with water pump (8), between described spray equipment (6) and extraction pipe (5), be provided with sponge block (9), described sponge block (9) is limited between upper box (2) roof and water tank (3) bottom surface, and is provided with two openings in the center of sponge block (9) to extracting the pipe diminishing flared hole of (5) direction (10) out, the entrance of described extraction pipe (5) is positioned at described flared hole (10) top, described extraction pipe (5) connects described vacuum pump (1), is also provided with a water pot (11) in the below of extracting pipe (5) out, described weighing pot (14) is connected with described tail pipe (4).

2. the weighing technique of a chinlon 6 section modifier, the method adopts Weighing system as claimed in claim 1, it is characterized in that: the gas that contains modifier is through being cleaned in vacuum extractor vacuum extractor in operational process, and most modifier is absorbed and dissolves by water.