A kind of Multistage filtering device of liquid reserve tank
Technical field
The utility model relates to the technical field of liquid reserve tank, specifically a kind of Multistage filtering device of liquid reserve tank.
Background technology
In industrial production, for some, need the industry of Multiple components hybrid process, for example electroplating industry, powder stir moulding industry, powder surface modification.Often need to or in production process, mix plurality of raw materials, auxiliary material and additive etc. before producing, therefore be below referred to as, mix material.And work as described mixing, expect according to technological requirement, while needing prior proportioning to become liquid mixture just can be pumped to working region, in prior art often by mixer will described in mix material and water carries out proportioning stirring, then solution proportioning in mixer being completed is pumped in a liquid reserve tank, by a measuring pump, by certain beat, the solution in liquid reserve tank is pumped to machining area again, thereby realizes the conveying that solution is quantitatively determined beat.And in above-mentioned prior art; owing to mixing certain impurity that often adulterated in material; described impurity can be solid particle or the part material caking that makes moist; thereby make to mix material, in whipping process, dissolve not exclusively, cause having deposited a part of impurity in liquid reserve tank, when this impurity is pumped to machining area; will cause scrapping of portioned product; thereby qualification rate is declined, also may cause the obstruction of measuring pump, its overload is damaged simultaneously.
Utility model content
Technical problem to be solved in the utility model is: thus provide a kind of impurity that can filter in liquid reserve tank to improve product percent of pass and effectively prevent that measuring pump from causing the Multistage filtering device of the liquid reserve tank of overload damage because impurity stops up.
Technical solution adopted in the utility model is: a kind of Multistage filtering device of liquid reserve tank, it comprises opening direction casing upward and is located at the case lid of casing upper end, in casing, be provided with the filter that the inner chamber of casing is separated into feed cavity and discharging chamber, the madial wall of described casing is provided with the limited impression being slidably connected with filter both sides, described limited impression runs through the upper surface of casing, and the lower surface of described filter and the laminating of the bottom surface of cabinets cavity, the upper end of described feed cavity is provided with filter basket, the two ends of filter basket are respectively provided with one for filter basket being shelved on to the projection of feed cavity top, described casing upper end is provided with the groove of shelving matching with projection, in described discharging chamber, be provided with opening direction drum upward, the lower end of drum is provided with some opening of sieves that are connected with discharging chamber, the lateral wall of described drum is provided with a projection, and the madial wall of the casing at place, discharging chamber is provided with one and matches with described projection for drum being suspended to the draw-in groove in discharging chamber.
Adopt after above structure, the Multistage filtering device of a kind of liquid reserve tank of the present utility model compared with prior art has the following advantages: first, by the opening of sieve on filter basket, filter and drum, carry out multistage filtering, can effectively prevent that solid impurity from entering in measuring pump, the obstruction that effectively reduces the product rejection that causes due to solid particle and measuring pump damages, secondly, three's filter is all flexibly connected with the internal chamber wall of casing, therefore be convenient to dismounting and change filter screen, improve the validity of filter screen, and the convenience of changing.
As preferably, described filter is comprised of the filter screen of the upper end of nearly casing and the baffle plate of nearly casing lower end, and the width of the vertical direction of baffle plate equals the width of the vertical direction of 1/3 filter screen.Described filter screen and the baffle plate filter that has been composed of a fixed connection, thus when filter is inserted in limited impression, and makes the descending inner chamber bottom surface laminating with casing of baffle plate, thus, can make a part of solid impurity be deposited in the bottom of feed cavity.
As preferably, the aperture of the opening of sieve of the mesh aperture in described filter basket, the aperture of the filter screen on filter and the lower end of drum diminishes successively.The aperture of the screen pack successively decreasing step by step, reaches the filtration step by step of different large small impurities, under the prerequisite in service life that guarantees screen pack, reaches optimum filtration effect.
Accompanying drawing explanation
Fig. 1 is that the Multistage filtering device of a kind of liquid reserve tank of the utility model is removed the perspective view after case lid.
Fig. 2 is that the Multistage filtering device of a kind of liquid reserve tank of the utility model is removed the top view after case lid.
Fig. 3 is the half sectional view of " A-A " position, edge in Fig. 2.
Fig. 4 is the structural representation of filter of the present utility model.
Wherein, 1, casing, 1.1, feed cavity, 1.1.1, shelve groove, 1.2, discharging chamber, 2, filter, 2.1, filter screen, 2.2, baffle plate, 3, limited impression, 4, filter basket, 4.1, projection, 5, drum, 5.1, opening of sieve, 6, projection, 7, draw-in groove, m, barrier width, n, filter screen width.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Front side hereinafter described, rear side, left side, right side all refer to the direction of the top view shown in accompanying drawing 2, and described the upper and lower of gravity vertical direction, the i.e. above-below direction as described in accompanying drawing 3 of being up and down.
As shown in the figure, the utility model provides a kind of Multistage filtering device of liquid reserve tank, it comprises opening direction casing 1 upward and the case lid of being located at casing 1 upper end, in casing 1, be provided with the filter 2 that the inner chamber of casing 1 is separated into feed cavity 1.1 and discharging chamber 1.2, be positioned at the feed cavity 1.1 and the discharging chamber 1.2 that is positioned at left side on the right side shown in accompanying drawing 2.The madial wall of described casing 1 is provided with the limited impression 3 being slidably connected with filter 2 both sides, and described limited impression 3 runs through the upper surface of casing 1, and the laminating of the bottom surface of the lower surface of described filter 2 and casing 1 inner chamber.The limited impression 3 of above-mentioned indication refers to, on casing 1 madial wall of the both sides, the corresponding front and back of length direction that described limited impression 3 is located at filter 2, and described limited impression 3 extends upward the upper surface of running through described casing 1, being convenient to filter 2 inserts in this limited impression 3 and is slidably matched with described limited impression 3, certainly, air line distance between the described limited impression on the madial wall of casing 1 both sides, front and back 3 is slightly larger than the length of filter 2, its width is also slightly larger than the width of filter 2 simultaneously, being convenient to thus described filter 2 is inserted in two relative limited impressions 3, and can effectively the inner chamber of casing 1 be separated into two cavitys in left and right, be feed cavity 1.1 and discharging chamber 1.2.The upper end of described feed cavity 1.1 is provided with filter basket 4, the two ends of filter basket 4 are respectively provided with one for filter basket 4 being shelved on to the projection 4.1 of feed cavity 1.1 tops, described protruding 4.1 two ends of being located at filter basket 4 refer to that described protruding 4.1 are the projection of column type, and be located at respectively on the front and back sides of filter basket 4, and rotate around this projection 4.1 in order to prevent this filter basket 4, therefore, its one-sided projection 4.1 that is equipped with two levels, that is to say, the both sides of described filter basket 4 are provided with two axial location respectively in the identical projection 4.1 of same level.Described casing 1 upper end be provided with match with this projection 4.1 shelve groove 1.1.1, the described groove 1.1.1 that shelves is the groove of being located on casing upper surface, its size matches with described projection 4.1, when filter basket 4 levels are located in feed cavity 1.1, described to shelve groove 1.1.1 corresponding one by one with projection 4.1 separately, by this projection 4.1 with shelve groove 1.1.1 and support the top that described filter basket 4 is suspended in feed cavity 1.1.In described discharging chamber 1.2, be provided with opening direction drum 5 upward, the lower end of drum 5 is provided with some opening of sieves 5.1 that are connected with discharging chamber 1.2, described opening of sieve can be to process integrated aperture by the lower end at drum 5, also drum 5 lower ends can be arranged to large diameter through hole, by a screen pack, be wrapped in outside the through hole of these drum 5 lower ends again, play the effect of filtration.The lateral wall of described drum 5 is provided with a projection 6, and the madial wall of the casing 1 at 1.2 places, discharging chamber is provided with one and matches with described projection 6 for the draw-in groove 7 that drum 5 is suspended in discharging chamber to 1.2, as shown in Figure 2, described projection 6 is one to be fixed on the T-shape fixture block on drum 5 lateral walls, described casing 1 is provided with the T-shape groove matching with this T-shape fixture block size shape, by the clamping effect of this projection 6 and draw-in groove 7, drum 5 is suspended in discharging chamber thus.Certainly in described drum 5, be provided with a measuring pump (not shown) for extracting the solution in casing.
Described filter 2 is comprised of the filter screen 2.1 of the upper end of nearly casing 1 and the baffle plate 2.2 of nearly casing 1 lower end, and the width of the vertical direction of baffle plate 2.2 equals the width of the vertical direction of 1/3 filter screen 2.1.As described in Figure 4, the barrier width m of the vertical direction of described baffle plate lower end is less than as being located at the filter screen width n of vertical direction of the filter screen 2.1 of this baffle plate upper end.
The aperture of the opening of sieve 5.1 of the mesh aperture in described filter basket 4, the aperture of the filter screen 2.1 on filter 2 and the lower end of drum 5 diminishes successively.That is to say, the aperture for some mesh of filtering in described filter basket 4 is greater than the aperture of the filter screen 2.1 on filter 2, and similarly, the aperture of the filter screen 2.1 on described filter 2 is greater than the aperture of the opening of sieve 5.1 of drum lower end, realize step by step and filtering, by filter basket 4, preferentially the impurity of greater particle size is filtered, and then by the heavier larger impurity of particle diameter of a baffle plate deposition part of filter 2 lower ends, by filter 2, further the impurity of medium particle diameter is filtered again, finally before extracting, the pump that is measured by the opening of sieve 5.1 of drum 5, completes again the filtration of last one small particle diameter impurity, thereby realize optimized filtration.