阅读说明：本技术 一种压滤机的拉板装置 (Plate pulling device of filter press ) 是由 蔡晶弟 李伟 刘和平 张玮 于 2020-07-24 设计创作，主要内容包括：本发明公开了一种压滤机的拉板装置,其应用在压滤机,所述压滤机包括左右对称的两个主梁,两个所述主梁之间设有若干卸料板组,所述卸料板组包括若干并排且相邻连接的滤板,所述滤板的两侧边设有可在主梁行走的滤板手柄,所述拉板装置包括设置在两个主梁并且沿滤板卸料移动方向运行的传动链、以及设置在所述卸料板组中至少首个滤板两侧或其滤板手柄两侧的带动机构,所述带动机构包括至少一个与传动链啮合并且空转的链轮,其中至少一个链轮设有止动器。本发明的有益效果在于,提高滤板的卸料效率。(The invention discloses a plate pulling device of a filter press, which is applied to the filter press, the filter press comprises two main beams which are bilaterally symmetrical, a plurality of discharging plate groups are arranged between the two main beams, each discharging plate group comprises a plurality of filter plates which are adjacently connected side by side, filter plate handles which can walk on the main beams are arranged on two sides of each filter plate, each plate pulling device comprises a transmission chain which is arranged on the two main beams and runs along the discharging moving direction of the filter plates, and a driving mechanism which is arranged on two sides of at least the first filter plate in each discharging plate group or two sides of the filter plate handle, each driving mechanism comprises at least one chain wheel which is meshed with the transmission chain and idles, and at least one chain wheel is provided with. The filter plate has the beneficial effect that the discharging efficiency of the filter plate is improved.)

1. The utility model provides a pulling plate device of pressure filter, its uses at the pressure filter, the pressure filter includes two girders of bilateral symmetry, two be equipped with a plurality of groups of unloading between the girder, the group of unloading includes a plurality of side by side and the adjacent filter plate of connecting, the both sides limit of filter plate is equipped with the filter plate handle that can walk at the girder, a serial communication port, the pulling plate device is including setting up at two girders and along the filter plate drive chain of the moving direction operation of unloading and setting and be in the drive mechanism of first at least filter plate both sides or its filter plate handle both sides in the group of unloading, drive mechanism includes at least one and drive chain meshing and the sprocket of idle running, and wherein at least one sprocket is equipped with the dog.

2. The filter press pulling plate device according to claim 1, wherein the driving mechanism comprises at least one sprocket engaged with a front surface of the driving chain and at least one sprocket engaged with a rear surface of the driving chain.

3. The apparatus of claim 2, wherein the driving mechanism comprises at least three sprockets, wherein the number of sprockets engaging the front surface of the driving chain differs from the number of sprockets engaging the back surface of the driving chain by no more than one, and the sprockets are staggered along the length of the driving chain.

4. The filter press pulling plate device according to claim 3, wherein the driving mechanism further comprises a mounting base connected to the outer side surface of the filter plate handle, the mounting base is provided with a mounting shaft corresponding to the sprocket, and the sprocket is slidably fitted on the mounting shaft.

5. The filter press draw plate apparatus of claim 4, wherein the mounting base is integral with the filter plate handle structure.

6. The filter press pulling plate device according to claim 4, wherein the stopper is a friction clutch provided on the mounting shaft and operable on the sprocket.

7. The pulling plate device of filter press according to claim 1, wherein the front side and the rear side of the main beam are respectively provided with a transmission gear, the transmission chain is annular and is in meshing transmission connection with the two transmission gears, and one of the transmission gears is a driving wheel.

8. A filter press draw plate apparatus according to claim 1, wherein adjacent entrainment mechanisms in said discharge plate set are spaced apart by at least one said filter plate.

Technical Field

The invention relates to a plate pulling device of a filter press, which is mainly applied to the technical field of unloading of the filter press.

Background

A mechanical device for dialyzing liquid by applying a certain pressure to a subject by using a special filter medium in a filter press is a common solid-liquid separation device. Among the prior art, use the arm-tie dolly pulling filter plate usually when unloading after accomplishing the filter-pressing for the filter cake that drops is opened to the clearance between the adjacent filter plate, and this kind of mode of unloading mainly has two problems: firstly, the operation object of the plate pulling trolley is single, only one filter plate or one group of filter plates can be used for moving and discharging in unit time, the adjacent discharging interval is long, and the short-interval discharging or partial-time synchronous discharging of a plurality of filter plates or a plurality of groups of filter plates cannot be realized, so that the plate pulling trolley has serious defects in the aspect of efficiency; secondly, the running mechanism of the drawplate trolley is easy to make mistakes, the drawplate trolley is matched with the filter plate through two pusher dogs and drives the filter plate to move, the pusher dogs and the relevant structures for executing the action of the pusher dogs are complicated and are easy to run and make mistakes, in addition, when the movement of the drawplate trolley is blocked, the frequency converter detects that the current of the motor exceeds a threshold value, the motor instruction is given to reversely rotate to drive the drawplate trolley to turn, the stress condition of the drawplate trolley is not stable and constant when the drawplate trolley drives the filter plate to move in practical application, misjudgment and turning are easy to occur under the interference of external factors or objective environment, the efficiency is low, and the damage and even the scrapping of the motor of the draw.

For example, prior art publication No. CN210751459U discloses a plate pulling device of a chamber filter press, which includes a guide rail, a slide block slidably connected to the guide rail, and a plate pulling trolley fixed on the slide block, wherein a lubricating mechanism is disposed at a contact position of the guide rail and the slide block, and two ends of the slide block are fixedly connected with a dust suction mechanism. Although this patent has lubricating arrangement, plays the lubrication action to the guide rail, reduces the friction of slider and guide rail, increases its life to reduce the probability that misjudgment turned to, still do not solve the problem with the complex partial structure of filter plate complex yet, the operation object is still single in addition, and work efficiency promotes and is not showing.

As the prior art publication No. CN210170910U discloses a drawplate trolley for a filter press, which comprises a traveling device arranged on a guide rail, a drawplate seat fixedly arranged above the traveling device, and a drawplate claw and a push plate claw which are arranged on the drawplate seat, wherein the drawplate seat comprises a bottom plate and a side plate, a height adjusting device is arranged between the traveling device and the bottom plate, the drawplate claw and the push plate claw are rotatably arranged on the side plate through a first shaft pin, torsion springs are respectively arranged between the drawplate claw and the push plate claw and between the side plate and the side plate, a drawplate claw supporting part is arranged on the drawplate claw, a push plate claw supporting part is arranged on the push plate claw, and two supporting columns which are respectively matched with the drawplate claw supporting part and the push plate claw supporting part are arranged on the side plate; a roller is arranged below the plate pulling claw and is rotatably arranged on the side plate through a second shaft pin; the top of the pull plate seat is fixedly provided with a guide seat, the guide seat is provided with a via hole, and a return collision rod is arranged in the via hole. Although the structure of the matching part of the pulling plate trolley and the filter plate is simplified, and the stability after matching is enhanced, the problems of single operation object, low efficiency and easy misjudgment and steering are still not solved.

Disclosure of Invention

The invention aims to provide a plate pulling device of a filter press, which improves the unloading efficiency of a filter plate.

The invention is realized by the following technical scheme.

The utility model provides a pulling plate device of pressure filter, its uses at the pressure filter, the pressure filter includes two girders of bilateral symmetry, two be equipped with a plurality of groups of unloading between the girder, the group of unloading includes a plurality of side by side and the adjacent filter plate of connecting, the both sides limit of filter plate is equipped with the filter plate handle that can walk at the girder, the pulling plate device is in including setting up at two girders and along the driving chain of the filter plate moving direction operation of unloading and setting the drive mechanism of first filter plate both sides or its filter plate handle both sides at least in the group of unloading, drive mechanism includes at least one and the sprocket of driving chain meshing and idle running, and wherein at least one sprocket is equipped with the dog.

As a further improvement of the invention, the driving mechanism comprises at least one chain wheel meshed on the front surface of the transmission chain and at least one chain wheel meshed on the back surface of the transmission chain.

As a further improvement of the invention, the driving mechanism comprises at least three chain wheels, wherein the difference between the number of the chain wheels meshed on the front surface of the transmission chain and the number of the chain wheels meshed on the back surface of the transmission chain is not more than one, and the chain wheels are staggered along the length direction of the transmission chain.

As a further improvement of the invention, the driving mechanism further comprises an installation base connected to the outer side surface of the filter plate handle, an installation shaft is arranged at the position of the installation base corresponding to the chain wheel, and the chain wheel is sleeved on the installation shaft in a sliding manner.

As a further refinement of the invention, the mounting base is integral with the filter plate handle structure.

As a further improvement of the invention, the stopper is a friction clutch provided on the mounting shaft and operable on the sprocket.

As a further improvement of the invention, the front side and the rear side of the main beam are respectively provided with a transmission gear, the transmission chain is annular and is in meshing transmission connection with the two transmission gears, and one of the transmission gears is a driving wheel.

As a further improvement of the invention, adjacent driving mechanisms in the discharge plate group are separated by at least one filter plate.

The invention has the beneficial effects that:

the invention realizes the movement of the filter plate by the dragging of the transmission chain through the idle running and the stop rotation of the chain wheel, firstly, the whole unloading process is continuous, compared with the single operation mode of the prior art pulling plate trolley, the efficiency is far superior, secondly, the setting reliability of the unloading operation mechanism is better, the running speed of the transmission chain and the number of the filter plates of the unloading plate group are set, the working time interval of the stoppers of the adjacent driving mechanisms is set reasonably, and the mechanism is simpler and is not easy to cause the problem of execution error.

Drawings

The preferred embodiments of the present invention will hereinafter be described in detail to facilitate understanding of the objects and advantages of the invention, with reference to the accompanying drawings, in which:

FIG. 1 is a schematic view of the filter press;

FIG. 2 is a partially enlarged schematic view of a portion of FIG. 1A;

fig. 3 is a schematic side view of the driving mechanism.

Detailed Description

The invention is explained in more detail below with reference to the drawings and exemplary embodiments.

The terms of orientation of up, down, left, right, front, back, top, bottom, and the like as referred to or as may be referred to in this specification are defined with respect to the configuration shown in the drawings, and the terms "inner" and "outer" refer to directions toward and away from the geometric center of a particular component and are relative terms, and thus may be changed accordingly depending on the position and the state of use of the particular component. Therefore, these and other directional terms should not be construed as limiting terms.

Referring to fig. 1-3, a plate pulling device comprises a transmission chain 31 and a driving mechanism, wherein the transmission chain 31 is arranged on each of two main beams 11 of a filter press, transmission gears (not shown) are respectively arranged on the front side and the rear side of each main beam 11, the transmission chain 31 is an annular chain and is in transmission connection with the two transmission gears, and one transmission gear is a driving wheel and is connected with a power source.

A plurality of filter plates 21 arranged side by side are arranged between the two main beams 11, the filter plates 21 can be filter plates 21 with integrated feeding and filter pressing functions, and material mold partition plates for feeding and water mold partition plates for filter pressing can also be alternately arranged one by one. When the filter press works, the pressing plate is pushed by the output power of the oil cylinder to face the direction of the thrust plate, the filter plate 21 between the pressing plate and the thrust plate is pressed, then mud is input into the filter plate 21, then water is input for filter pressing, the pressing plate returns to reset after the working procedure is completed, and finally the pulling plate device of the invention is used for driving the filter plate 21 to move along the unloading direction to open the gap between the filter plates for unloading. Two sides of the filter plate 21 are provided with filter plate handles 22, the top edges of the two main beams 11 are provided with tracks 111 along the length direction of the main beams, and the filter plate handles 22 can walk on the tracks 111 corresponding to the main beams 11.

A plurality of continuous filter plates 21 are taken as a group to be used as a discharge plate group, adjacent filter plates 21 in the discharge plate group are connected with each other, further, the connection is a telescopic connection mode with a limited maximum stroke, and in an embodiment, chains 23 for connecting the adjacent filter plates 21 are arranged at least between filter plate handles 22 on the same side. In another embodiment, adjacent filter plates 21 are connected by a rope. It should be noted that the adjacent discharge plate groups are not connected in a chain or rope connection mode.

The driving mechanism is arranged on two sides of the first filter plate or filter plate handle 22 in the discharge plate group, and comprises at least one chain wheel 41 which is meshed with the transmission chain 31 and idles, wherein at least one chain wheel 41 is provided with a stopper 42. The working principle is as follows: the chain wheel 41 is kept idle during the time period that the first filter plate is not moved and discharged, i.e. the chain wheel 41 does not drive the first filter plate to move, when it is needed to move, the stopper 42 acts on the chain wheel 41 to stop its rotation, because the chain wheel 41 is engaged with the transmission chain 31, the transmission chain 31 drives the chain wheel 41 and the first filter plate to move along the discharging direction, and the rest filter plates 21 of the discharging plate group are also dragged by the first filter plate successively.

Compared with the plate pulling trolley or other plate pulling modes in the prior art, the plate pulling device has higher efficiency.

Firstly, the discharging is continuous, the discharging plate group at present can start discharging after the last filter plate 21 of the previous discharging plate group is pulled to move for a certain distance, and the time interval for pulling the two adjacent discharging plate groups is denoted as t1, the prior art needs to pull the previous discharging plate group and the current discharging plate group for a considerable distance to complete discharging, the time interval from pulling to stopping of the previous discharging plate group is denoted as t2, obviously, t1 is less than t2, it is noted that, after the discharging operation of the previous discharging plate group is completed by the pulling trolley, the position of the pulling trolley is the same as that of the previous discharging plate group, the discharging operation of the current discharging plate group can be executed only after the pulling trolley is moved to the current discharging plate group, the time interval for moving the pulling trolley is denoted as t3, t3 is slightly smaller than t2 but has a little difference, so that the time interval for pulling the two adjacent discharging plate groups in the prior art is t2+ t3, t1, the time consumed for discharging all the N discharging plate groups is far less than that of the prior art, and the plate pulling mode has absolute superiority in terms of efficiency.

Secondly, the setting reliability of the discharging operation mechanism is better, the transmission chain 31 continuously runs at a constant speed, and after the operation speed is set, the working time interval of adjacent driving mechanisms can be set according to the number of the filter plates 21 in the discharging plate groups and the distance required by the discharging of the adjacent discharging plate groups, so that the mechanism is logically simpler and the problem of execution errors is not easy to occur. In the prior art, the setting of the discharging operation is realized through the reciprocating movement of the pull plate trolley between two adjacent discharging plate groups, the pull plate trolley pulls the previous discharging plate group to move for discharging, and when the previous discharging plate group is pulled to be incapable of moving continuously (the previous discharging plate group blocks the current discharging plate group to move continuously), a frequency converter of the pull plate trolley detects that the current of a motor exceeds a threshold value, the motor reversely rotates to drive the pull plate trolley to move to the current discharging plate group, the current discharging plate group is turned to again according to the same turning mechanism to execute the discharging operation of the current discharging plate group, compared with the prior art, the mechanism is relatively complex logically, the turning of the pull plate trolley depends on the feedback of the blocked force during moving, the stress condition of the pull plate trolley in the discharging process is fluctuant and is easily influenced by other factors to generate an uncertain condition, for example, the problem that the pull plate trolley is easy to turn at a non-set position due to the occurrence of a clamping The reliability and stability of operation are therefore problematic.

It should be noted that, in this embodiment, the driving force applied to the first filter plate when the first filter plate moves along the discharging direction is completely provided by the stopping force of the stopper 42 on the sprocket 41, and in practical application, the first filter plate drags all the filter plates 21 of the discharging plate group to move, so that the load on the stopper 42 is large, and the stopper 42 and the sprocket 41 are easily damaged, which leads to the phenomenon that the service life of the filter plate is shortened or the filter plate cannot normally work, therefore, one discharging plate group needs to have a plurality of filter plates 21 provided with driving mechanisms, on one hand, the load on the driving mechanism of the first filter plate can be shared, so that the load on the stopper 42 of each driving mechanism is smaller than the damaged threshold, and in addition, the adjacent driving mechanisms are spaced by at least one filter plate 21, and usually, the spacing between 2 to 3 filter plates 21 can meet the requirement, of course, the number of the specific driving mechanisms and the number of the adjacent filter plates 21 need to comprehensively consider Amount of the compound (A).

Further, the driving mechanism comprises at least one chain wheel 41 meshed on the front side of the transmission chain 31 and at least one chain wheel 41 meshed on the back side of the transmission chain 31, no matter whether the chain wheel 41 is in an idle state or in a state of stopping rotation and being dragged by the transmission chain 31, a vertical acting force is always generated on the transmission chain 31, if the chain wheel 41 is only arranged on one side of the transmission chain 31, the requirement on the original stretching speed of the transmission chain 31 is very high, otherwise, the problem that the meshing combination degree between the chain wheel 41 and the transmission chain 31 is not high can occur. In addition, after the filter press runs for a long time, the transmission chain 31 tends to be loosened or loosened under the action of a unidirectional acting force in the vertical direction, and further the phenomenon that the engagement between the chain wheel 41 and the transmission chain 31 is unstable and even the tooth is disengaged can occur, and if the phenomenon occurs, the driving mechanism cannot realize the function of dragging the discharging plate group. Therefore, the chain wheels 41 are arranged on both sides of the transmission chain 31, namely, the chain wheels 41 are meshed with the front surface and the back surface of the transmission chain 31, so that the vertical acting force applied to the transmission chain 31 can be balanced, and the meshing state of the chain wheels 41 and the transmission chain 31 is less influenced by long-time operation.

Considering that the position relationship of the chain wheel 41 and the position relationship of the two sides of the transmission chain 31 not only affect the meshing stability of the chain wheel 41 and the transmission chain 31, but also affect the arrangement of the driving mechanism, the driving mechanism includes at least three chain wheels 41, wherein the difference between the number of the chain wheels 41 meshed on the front side of the transmission chain 31 and the number of the chain wheels 41 meshed on the back side of the transmission chain 31 is not more than one, that is, the number of the chain wheels 41 meshed on the two sides of the transmission chain 31 needs to be balanced, and the structural stability of the driving mechanism is ensured as much; in addition, the chain wheels 41 are staggered along the length direction of the transmission chain 31, the bending degree of the part of the chain wheel 41 in the range of the driving mechanism can be finely adjusted by adjusting the vertical distance between the chain wheels 41 at the two sides of the transmission chain 31, or by replacing the chain wheels 41 with different diameters, when the filter press carries out discharging, the moving speed of the filter plate 21 is relatively slow, so that the problem that the damping is high due to the partial bending of the driving mechanism when the transmission chain 31 runs is less influenced, but the combination degree between the transmission chain 31 and the chain wheels 41 can be improved, namely, more engaging teeth of the chain wheels 41 are kept in an engaged state with the transmission chain 31, on one hand, when the chain wheel 41 is dragged by the transmission chain 31, no matter the chain wheels 41 or the transmission chain 31, the mutual acting force is shared by more parts of the chain wheels 41, so that local damage can be avoided, the condition that the chain wheel 41 and the transmission chain 31 are out of teeth or fail to mesh is avoided, and the running stability of the transmission chain 31 is improved.

In summary, in the present embodiment, the sprocket 41 of the drive mechanism is provided with three, two of which mesh with the front surface of the drive chain 31 and the other of which mesh with the rear surface of the drive chain 31, and the three sprockets 41 are arranged in a regular triangular orientation.

Further, the driving mechanism further comprises an installation base 43, the installation base 43 is connected to the outer side surface of the filter plate handle 22, the filter plate handle 22 and the filter plate handle 22 are of an integrated structure and of a T-shaped structure, an installation shaft 44 is arranged at the position, corresponding to the chain wheel 41, of the installation base 43, and the chain wheel 41 is slidably sleeved on the installation shaft 44.

In the stopper 42, it is preferable that the stopper 42 is disposed to engage with the sprocket 41 on the rear surface of the transmission chain 31, and it is preferable that a friction clutch, specifically, an electromagnetic clutch is used, the electromagnetic clutch is mounted on a mounting shaft 44 corresponding to the sprocket 41, the electromagnetic clutch is in a separated state from the sprocket 41 in a non-moving state, and when the stopper is moved, the electromagnetic clutch is engaged with the sprocket 41 to stop the rotation of the sprocket 41.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments can be modified, or some technical features can be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.